Démocratiser les vacances et les loisirs des enfants : les réseaux de proximité, un moyen de lutte contre les inégalités ?

Source: The Conversation – in French – By Bertrand Réau, Professeur titulaire de la chaire "Tourisme, voyage, loisirs", Conservatoire national des arts et métiers (CNAM)

Les activités culturelles et sportives ainsi que les départs en séjour collectif sont marqués par de profondes disparités sociales. La dernière enquête de l’Observatoire des vacances et des loisirs des enfants et des jeunes, ou Ovlej, le confirme. Mais les données recueillies montrent aussi que les relais associatifs et l’offre locale permettent aux familles modestes de diversifier ces pratiques extrascolaires.


Près de 5 millions d’enfants ne partent pas en vacances, par manque de ressources financières dans la plupart des cas. Tandis que 73 % des enfants issus des classes les plus favorisées partent au moins une fois par an, 56 % des enfants affiliés aux foyers les plus modestes ne partent jamais.

Longtemps, les colonies de vacances et autres séjours collectifs ont été un moyen privilégié pour démocratiser les mobilités mais, depuis plusieurs années, la tendance est à la polarisation des publics, entre les foyers disposant de ressources économiques et ceux qui y accèdent seulement grâce aux aides publiques ou d’entreprises.

L’Observatoire des vacances et des loisirs des enfants et des jeunes (Ovlej) a analysé comment les parents combinent activités hebdomadaires en période scolaire et séjours ou activités durant les vacances. Si les inégalités sociales restent déterminantes, l’enquête, dont nous diffusons ici les premiers résultats, montre que l’offre accessible localement, l’information de proximité et les relais associatifs dessinent des opportunités pour les familles modestes.

Des écarts selon les territoires et les contextes familiaux

L’accès aux loisirs et aux vacances collectives demeure le théâtre d’inégalités sociales tenaces. L’enquête que dévoile l’Observatoire des vacances et des loisirs des enfants et des jeunes (Ovlej) en ce printemps 2026 en témoigne : certes, 72 % des enfants s’investissent dans au moins une activité de loisir encadrée, et 40 % multiplient les séjours collectifs en 2024. Mais la fréquence et le cumul de ces expériences dessinent une cartographie sociale contrastée, où l’origine familiale trace des frontières invisibles mais puissantes.

Le diplôme parental s’impose comme premier marqueur de ces inégalités. Les enfants de parents peu diplômés se concentrent massivement parmi ceux qui ont des vacances sans aucune activité collective, qu’ils partent ou non en séjour (30 % des répondants), à l’opposé des enfants dont les deux parents détiennent un diplôme universitaire.

Ce contraste reflète une double logique : stratégie de diversification chez les familles diplômées et capacité financière permettant de multiplier les activités. Les familles disposant de revenus supérieurs à 5 000 € mensuels envoient ainsi plus volontiers leurs enfants vers des activités collectives sur plusieurs périodes de vacances. À l’inverse, les foyers aux budgets plus serrés voient leurs options se rétrécir.

Le territoire d’habitation amplifie ce phénomène. L’enquête dévoile une polarisation géographique saisissante : zones rurales et territoires peu denses regroupent davantage d’enfants coupés de toute activité collective, qu’ils partent ou non en séjour. Ainsi, 20 % des enfants n’ayant effectué qu’un seul séjour sans autre activité collective vivent en zone rurale. À l’autre extrémité, grandes métropoles et Paris concentrent les enfants engagés dans des pratiques régulières et intensives : 29 % vivent dans des unités urbaines de plus de 200 000 habitants et pratiquent d’autres activités collectives sur plus de 2 périodes de vacances. Un gradient apparaît : plus la ville est grande, plus les enfants cumulent séjours et activités collectives.

Au Parc de Clères (Seine-Maritime), le Secours populaire français (SPF) accompagne les enfants qui ne partent pas en vacances (reportage de France 3 Normandie, 2019).

La structure familiale superpose une strate supplémentaire d’inégalités. Les enfants en garde alternée s’investissent davantage dans des pratiques intensives, quel que soit leur nombre de départs en séjour. Leur présence s’accroît à mesure que la fréquence des activités collectives grimpe durant les vacances. En miroir, les enfants de familles monoparentales, surtout lorsque le parent vit seul, s’éloignent des activités collectives, indépendamment du nombre de séjours effectués. Contraintes organisationnelles et économiques constituent de véritables freins pour ces familles.

Les « super-cumulants » : des enfants privilégiés, plutôt urbains

Les enfants qui concentrent le plus d’activités – séjours collectifs multiples et loisirs encadrés réguliers tout au long de l’année – présentent des profils sociologiques nettement tranchés. Ils représentent 34 % des enfants enquêtés et proviennent de familles aisées : revenus élevés, parents diplômés. Ces familles, dotées des plus forts capitaux économique et culturel, offrent à leurs enfants loisirs réguliers et séjours multiples.

Émergent également les « pluri-partants », très engagés dans d’autres activités collectives durant les temps de vacances » (23 % de l’échantillon total) : un profil particulièrement favorisé, urbain et marqué par des recompositions familiales. Cette catégorie concentre principalement des familles en garde alternée ou des configurations monoparentales où le parent vit en couple. Ces enfants résident plutôt en milieu urbain dense et habitent des maisons sans espace extérieur. Leurs familles affichent des revenus supérieurs à 6 000 € mensuels. Les parents détiennent également plus fréquemment un diplôme de l’enseignement supérieur.

Ces enfants multi-pratiquants investissent davantage de structures de loisirs collectifs : en moyenne 1,3 structure annuelle contre 0,9 pour ceux qui ne partent qu’une fois en séjour. Durant l’année scolaire, ils fréquentent massivement les mouvements de jeunesse (3,3 fois plus), les structures collectives type maison de quartier (1,8 fois plus) ou encore les conservatoires et clubs artistiques (1,6 fois plus). Cette multipratique témoigne d’un recours intense aux structures encadrées.

En moyenne, ces enfants ont pratiqué 1,9 activité de loisir encadrée entre avril 2023 et mars 2024, et 7 % d’entre eux en pratiquent même 4 ou plus. L’enquête révèle une corrélation positive entre le nombre d’activités de loisirs encadrés et celui de départs en séjours collectifs : parmi les enfants pratiquant 3 loisirs encadrés ou davantage, 30 % sont partis au moins 3 fois en séjour collectif dans l’année.

Classes populaires et moyennes : des brèches grâce aux réseaux de proximité

Si les inégalités sociales sculptent fortement l’accès au cumul d’activités, l’enquête met également en lumière l’existence de profils d’enfants de classes populaires et moyennes qui parviennent à conjuguer loisirs réguliers et séjours collectifs. Leurs trajectoires révèlent les conditions qui rendent possible cet accès.

Premier profil identifié : les « mono-partants très engagés dans d’autres activités collectives pendant leurs vacances » (14 % de l’échantillon). Il s’agit principalement de jeunes enfants âgés de 6 à 10 ans, résidant dans de petites villes (unités urbaines de 5 000 à 9 999 habitants). Ces enfants vivent plus fréquemment en garde alternée lorsque l’un des deux parents est en couple, et l’on y trouve aussi plus d’enfants dont les deux parents sont ouvriers. Le jeune âge et l’ancrage dans de petites villes à offre accessible apparaissent comme des facteurs facilitateurs décisifs.

Le deuxième profil correspond aux enfants qui partent peu en séjour collectif mais qui pratiquent régulièrement, par exemple chaque semaine, des loisirs collectifs (44 % de l’échantillon). Ce sont des enfants établis dans des petites à moyennes unités urbaines offrant des loisirs encadrés accessibles. Le niveau de diplôme de leurs parents atteint le baccalauréat ou le premier cycle universitaire. Ces enfants s’insèrent solidement dans les structures locales, mais leur fréquentation de séjours collectifs reste modérée. Ils incarnent les classes moyennes pour qui l’ancrage territorial et l’offre de proximité permettent une pratique régulière de loisirs, même si les séjours multiples demeurent hors de portée.

Qu’est-ce qui rend possible ce cumul d’activités malgré des ressources limitées ? L’enquête identifie plusieurs leviers essentiels. Le premier : l’accessibilité de l’offre locale. Les petites et moyennes villes qui proposent des structures de loisirs accessibles financièrement et géographiquement permettent aux familles modestes d’inscrire leurs enfants dans une pratique régulière. Le territoire joue ici un rôle protecteur contre les inégalités.

Le deuxième levier : les réseaux de proximité et les canaux d’information. Le principal canal utilisé par les familles pour se renseigner sur les séjours collectifs demeure la structure fréquentée par l’enfant durant l’année (centre de loisirs, club), mobilisée par 37 % des familles. Plus les enfants multiplient les séjours collectifs, plus leurs parents sollicitent la mairie et les recherches en ligne.

Ces résultats confirment le rôle central du local – structures, mairies, ressources numériques – pour orienter les familles et favoriser les départs multiples. Les réseaux associatifs et les politiques municipales d’information constituent ainsi des leviers d’action pour réduire les inégalités d’accès, à condition qu’ils soient renforcés et que l’information circule efficacement auprès de tous les publics.


Cet article a été co-écrit par Bertrand Réau, professeur titulaire de la chaire « Tourisme, voyage, loisirs » du Cnam, Stéphanie Rubi, professeure des universités en sciences de l’éducation et de la formation, et Lydia Thiérus, chargée de mission à l’Observatoire des vacances et des loisirs des enfants et des jeunes (Ovlej).

The Conversation

Stéphanie Rubi co-préside avec Bertrand Réau l’Observatoire des Vacances et des Loisirs des Enfants et des Jeunes (Ovlej)

Bertrand Réau ne travaille pas, ne conseille pas, ne possède pas de parts, ne reçoit pas de fonds d’une organisation qui pourrait tirer profit de cet article, et n’a déclaré aucune autre affiliation que son organisme de recherche.

ref. Démocratiser les vacances et les loisirs des enfants : les réseaux de proximité, un moyen de lutte contre les inégalités ? – https://theconversation.com/democratiser-les-vacances-et-les-loisirs-des-enfants-les-reseaux-de-proximite-un-moyen-de-lutte-contre-les-inegalites-277573

Des bactéries pour aller sur Mars

Source: The Conversation – France in French (2) – By Laurent Palka, Maître de conférences, Muséum national d’histoire naturelle (MNHN)

Aller sur Mars représente un voyage de plus de mille jours. Comment rendre autonome un équipage pendant autant de temps ? Découvrez le projet MELiSSA qui vise à recycler le carbone, l’hydrogène, l’oxygène et l’azote grâce aux bactéries en recréant le fonctionnement d’un écosystème terrestre à l’intérieur d’une fusée.


Les voyages habités vers la Planète rouge ne sont plus de la fiction. La Nasa prévoit même les premiers dans les années 2030, autrement dit demain. Pourtant, les défis techniques, scientifiques et humains à relever sont encore immenses avant de parcourir les 225 millions de kilomètres qui nous séparent de Mars, à l’aller comme au retour. L’équipage devra résister pendant des mois à l’effet des radiations, de la microgravité, du confinement, de l’isolement, etc., et à l’absence de biodiversité. C’est pourtant d’elle qu’il sera question ici pour régler un autre défi, celui de l’autonomie.

Des ressources pour un voyage au long cours

Dans l’espace, un homme ou une femme a besoin toutes les 24 heures d’un kilo de nourriture, d’un kilo d’oxygène, de trois litres d’eau potable et de 20 litres supplémentaires pour l’hygiène corporelle. De sorte qu’un voyage de mille jours aller-retour vers Mars obligerait à décoller avec 25 tonnes de ressources par personne.

En admettant que ce soit possible avec un des lanceurs super lourds qui emportent 130 à 150 tonnes, il faudrait ajouter la quantité de ressources quotidiennes nécessaire une fois sur Mars et pouvoir redécoller avec un emport suffisant pour le retour. L’autonomie de l’équipage sur le long terme est donc un vrai défi.

Pour le surmonter, l’idée serait de tout produire et recycler en cours de route et sur place, de manière durable. Tel est l’objectif du projet MELiSSA. L’acronyme signifie système de support de vie micro-écologique alternatif, qui se base sur deux composantes de la biodiversité, les bactéries et l’écosystème. Ce dispositif bio-inspiré est développé par l’Agence spatiale européenne (ESA) et ses partenaires.

Des bactéries fonctionnant comme dans un écosystème terrestre

Le préfixe « éco » du terme écosystème provient du grec ancien Oikos qui se traduit par la métaphore de la maison et ses habitant·es. Mais une maison a besoin de lumière, de CO2 et d’eau pour créer un phénomène crucial pour la vie sur Terre, la photosynthèse oxygénique.

À partir de lumière, de CO2 et d’eau, les cyanobactéries, c’est-à-dire les bactéries photosynthétiques, les algues et les plantes se mettent à fabriquer des molécules carbonées (sucres et lipides), en libérant de l’oxygène. Ce sont les producteurs primaires à la base des principaux écosystèmes, de la pyramide des consommateurs et des réseaux trophiques. Ce type de réseau se définit comme l’ensemble des interactions alimentaires. Mais les producteurs primaires ont besoin de minéraux. Une partie provient de la décomposition de la matière organique et des excréments assurée par les bactéries et les champignons.

C’est ce fonctionnement circulaire dans le milieu terrestre qui a inspiré les scientifiques du projet MELiSSA en le simplifiant pour mieux le contrôler. Le dispositif est ingénieux et comporte cinq compartiments interconnectés. L’objectif est de produire les ressources nécessaires à l’équipage par des plantes cultivées en hydroponie, ou culture hors sol, et des cyanobactéries, puis décomposer les déchets par des consortiums bactériens artificiels.

Fonctionnement du dispositif MELiSSA étudié par l’ESA.
L. Palka, Fourni par l’auteur

Les déchets sont un mélange d’au moins 70 % de végétaux non consommés et d’un maximum de 30 % d’excréments. La décomposition se fait en absence d’oxygène et à 55 °C par un consortium dominé par les bacilles Thermocaproicibacter et Thermoanaerobacterium. Dans ce four, les bactéries thermophiles atteignent leur optimum de croissance, tandis que les pathogènes opportunistes meurent, ce qui fait partie aussi de l’objectif. La décomposition libère des acides gras volatiles, du CO2, de l’ammoniac et de l’hydrogène qui vont alimenter les autres compartiments.

Rhodospirillum rubrum, vue en microscopie électronique à balayage sans les flagelles.
HZI/Manfred Rohde, Fourni par l’auteur

Les acides gras sont transférés dans le compartiment n°2 contenant une seule espèce de bactéries, Rhodospirillum rubrum. La majorité des cellules sont spiralées et possèdent sept flagelles à chaque pôle. Certaines peuvent atteindre entre 10 et 60 µm de long dans certains milieux. Ces bactéries, de couleur rose en absence d’oxygène, sont multitâches, capables de faire la photosynthèse mais sans produire d’oxygène, de fixer l’azote et de libérer de l’ammoniac. Ce n’est pourtant pas ces caractéristiques qui intéressent MELiSSA, mais leur capacité à pousser plus loin la conversion des acides gras en CO2. Celui-ci passe alors directement dans le compartiment n°4 pour entretenir la photosynthèse par les plantes et par les cyanobactéries.

Le compartiment suivant, n°3, contient deux autres espèces de bactéries, typiques d’une étape fondamentale du cycle de l’azote, la nitrification. Il s’agit de réactions chimiques en chaîne très complexes. Tout commence par les bactéries appartenant au genre Nitrosomonas qui fixent des atomes d’oxygène à l’ammonium en produisant des nitrites ou NO2. L’oxygène nécessaire émane du compartiment n°4 tandis que l’ammoniac provient principalement de l’urine de l’équipage. Les nitrites sont ensuite oxydés à leur tour par les bactéries du genre Nitrobacter en nitrates ou NO3. Les nitrates passent alors dans le compartiment n°4 comme source d’azote pour les plantes et les cyanobactéries.

Un dispositif de production et de recyclage en constante amélioration

Illustration de la cyanobactérie filamenteuse Limnospira, repère 10 µm.
C. Duval et C. Bernard, MNHN, Fourni par l’auteur

La biomasse produite, mais aussi l’oxygène et l’eau sont consommés par l’équipage dans le compartiment n°5. Les déchets vont dans le compartiment n°1, le CO2 dans le n°4, et le cycle recommence. Tous les éléments, à savoir le carbone, l’hydrogène, l’oxygène et l’azote, sont recyclés.

Mais ce dispositif est sans cesse en développement pour être optimal. Par exemple les scientifiques de MELiSSA essaient de remplacer R. rubrum par des biopiles où un consortium bactérien contenant le genre Geobacter est associé à l’anode, l’une des deux électrodes, pour convertir les acides gras en CO2 en créant un courant électrique. Sur le plan énergétique, celui-ci est encore marginal, certes.

Les scientifiques testent par ailleurs des plantes, comme la laitue, la tomate, le chou ou le riz et un genre de cyanobactérie, Limnospira connu sous le nom de spiruline. Si les cyanobactéries représentent aujourd’hui seulement 30 % de la biomasse, leur contribution est appelée à croître, car leur système photosynthétique leur donne la capacité de réagir de manière quasi instantanée au changement de flux lumineux. Par ailleurs, la spiruline est très riche en protéines et contient des vitamines et des acides gras de type oméga 6.

Le projet MELiSSA montre que la connaissance des bactéries et la compréhension du fonctionnement des écosystèmes terrestres sont une des clés pour rendre possible l’autonomie des vols habités vers la planète Mars. Mais le développement de ce dispositif européen aussi complexe est long et ne sera pas prêt d’ici les années 2030. A priori, il en serait de même côté américain pour la Nasa, et la question reste posée pour les approches russes et chinoises. Quoi qu’il en soit, l’idée de l’ESA est aussi de valoriser plus rapidement le dispositif sur Terre pour contribuer au développement de l’économie circulaire.


Ce texte n’aurait pas été possible sans la relecture de Chloé Audas, directrice du projet MELiSSA, Brigitte Lamaze, ingénieure à l’ESA, et Claude-Gilles Dussap, directeur de la Fondation MELiSSA. L’auteur les remercie vivement.

The Conversation

Laurent Palka est membre du CESCO, Centre d’Ecologie et des Sciences de la Conservation et de l’association Chercheurs Toujours.

ref. Des bactéries pour aller sur Mars – https://theconversation.com/des-bacteries-pour-aller-sur-mars-273518

Not just boys: The overlooked story of ADHD in women and girls

Source: The Conversation – Canada – By Emma A. Climie, Associate Professor in School & Applied Child Psychology, University of Calgary

School-aged and adolescent girls with ADHD often slip through the cracks. (Unsplash+/Getty Images)

When people think about attention-deficit/hyperactivity disorder (ADHD), they often picture a hyperactive young boy running around a classroom, not the quiet girl daydreaming in the corner, the chatty student who can’t finish her work or the mother who is chronically late and constantly searching for her keys.

Yet all of these individuals — boys and girls, men and women — may be showing signs of ADHD, a neurodevelopmental condition that can significantly affect daily functioning.

As psychologists and researchers who are focused on understanding ADHD in girls and women across the lifespan, we want to better understand the social, emotional, cognitive and hormonal factors that uniquely intersect with ADHD in girls and women. Our combined research examines the experiences of ADHD in girls in childhood and adolescence through adulthood and older adulthood, with a focus on understanding how girls and women can thrive.

Girls with ADHD

School-aged and adolescent girls with ADHD often slip through the cracks. They are frequently described as “spacey” or daydream-y and tend to display fewer overtly disruptive behaviours than boys. Instead, they may hold in their stress, which can lead to misdiagnoses of anxiety or depression, rather than accurate identification of ADHD.

A girl wearing headphones and playing with a multicoloured bubble popper fidget toy
As they enter puberty, girls with ADHD face heightened risks of academic difficulties.
(Unsplash/Andrej Lisakov)

There are, however, clear signs. Girls with ADHD are often emotionally sensitive, may experience social difficulties (such as interrupting conversations or struggling to read social cues) and tend to show more “internalized” hyperactivity, like hair-twirling, skin-picking or leg-bouncing.

As they enter puberty (often beginning between ages nine and 11), girls with ADHD face heightened risks of academic difficulties, earlier substance-related concerns and increased rates of mood disorders.

Hormonal changes during this period may also affect the effectiveness of ADHD medications, creating additional challenges at an already vulnerable developmental stage.

Women with ADHD

When we work with women with ADHD, we often hear comments like: “I was diagnosed because my child was diagnosed.” Many women were not identified in childhood, only later recognizing that the challenges their children face closely mirror their own experiences growing up.

Women who have been living with unrecognized ADHD symptoms for many years often develop strong coping strategies that allow them to function well, but major life transitions (such as becoming a parent or entering menopause) can disrupt these strategies. When that happens, approaches that once worked may become less effective, leading to more noticeable challenges. Currently, women in their 30s and 40s represent one of the fastest-growing groups receiving stimulant prescriptions for ADHD, suggesting a rise in diagnoses in this demographic.

So, what does ADHD look like in women?

Women with ADHD frequently describe a range of experiences that, while not explicitly listed in the diagnostic criteria, significantly affect their daily lives. For example, many report “masking” their behaviour or emotions, in an effort to not stand out. They may overcompensate to appear organized and competent, spending excessive time on tasks to avoid mistakes or criticism.

Over time, these patterns can contribute to chronic stress and exhaustion and often present as anxiety or depression, further delaying accurate identification and appropriate support. In addition, women with ADHD often experience difficulties with task initiation, procrastination and completing tasks on time. These challenges can affect both their personal and professional lives, contributing to chronic stress, self-doubt and burnout.

A woman in a white blouse at a desk with a laptop and crumpled papers, burying her face in her hands
women with ADHD often experience difficulties with task initiation, procrastination and completing tasks on time.
(Pexels/Karola)

ADHD in later life

As women enter mid-life, many say they experience a significant worsening of their ADHD symptoms, likely resulting from both normal brain aging and menopausal changes. The frontal lobes of the brain usually begin to function less efficiently as people get older, and people aging with ADHD may be particularly impacted by these age-related changes because of pre-existing differences in the structure and functioning of their brain’s frontal lobes.

Women with ADHD may face even greater challenges than men as they age, in part because of declines in estrogen that occur during menopause. Estrogen works together with dopamine (an important brain chemical) to enhance mood and cognition; when estrogen levels decrease (for example, during peri-menopause), dopamine’s positive effects are less pronounced.

Many women with ADHD experience these hormone fluctuations as more extreme than other women, suggesting that perimenopause might be an especially challenging time for them.

What do I do if I think I have ADHD?

If you think you may have ADHD, an important step in diagnosis is determining that at least some symptoms have been present for a long time (rather than having started only recently), and ensuring those symptoms aren’t better accounted for by another medical or psychiatric condition.

A family doctor is often well positioned to make these determinations because they are familiar with your health history and usually have followed you over an extended period of your life. If you think you may have ADHD, speaking with your family doctor about your concerns is typically a good first step.

You can also connect with the Centre for ADHD Awareness, Canada to get more information about ADHD testing, diagnoses and supports.

The Conversation

Emma Climie receives funding from the Social Sciences and Humanities Research Council, the Azrieli Foundation, and the Carlson Family Research Award in ADHD. She is a Member of the Board of Directors for CADDRA – Canadian ADHD Resource Alliance.

Brandy Callahan receives funding from the Canadian Institutes of Health Research, the Social Sciences and Humanities Research Council, and the Canada Research Chairs Program.

ref. Not just boys: The overlooked story of ADHD in women and girls – https://theconversation.com/not-just-boys-the-overlooked-story-of-adhd-in-women-and-girls-275686

A million new SpaceX satellites will destroy the night sky — for everyone on Earth

Source: The Conversation – Canada – By Samantha Lawler, Associate Professor, Astronomy, University of Regina

A Starlink train passing through auroras over rural Saskatchewan in November 2025. (Samantha Lawler), CC BY-NC-ND

More than 10,000 Starlink satellites currently orbit the Earth. We see them crawling across dark skies, no matter how remote our location, and streaking through images from research telescopes.

SpaceX recently announced that it wants to launch one million more of these satellites as orbital data centres for AI computing power.

A few years ago, we wrote a paper predicting what the night sky would look like with 65,000 satellites from four planned megaconstellations: SpaceX’s Starlink, Amazon’s Kuiper (now Leo), the U.K.’s OneWeb and China’s Guowang. We calibrated our models to observations of real Starlink satellites and came up with a startling prediction: One in 15 visible points in the night sky would be a satellite, not a star.

A million satellites would be so much worse.

The human eye can see fewer than 4,500 stars in an unpolluted night sky. If we permit SpaceX to launch these satellites, we will see more satellites than stars — for large portions of the night and the year, throughout the world. This will severely damage the night sky for everyone on Earth.

SpaceX’s proposal also completely fails to account for atmospheric pollution, collision risk or how to develop the technology needed to disperse waste heat from orbital data centres.

Predicting the night sky

SpaceX has filed its million-satellite proposal to the United States Federal Communications Commission (FCC) and has only provided bare-bones information about these new satellites so far.

We do know that the proposed constellation will have satellites in much higher orbits, making them visible for longer periods of the night.

We decided to build an updated simulation, using the website of astrophysicist Jonathan McDowell. This includes a set of orbits consistent with the limited information in SpaceX’s filing.

We used the observed brightness of Starlink satellites as a reference, scaling the brightness model by considering size jumps between Starlink V1, V2 and predictions for V3, and assuming even higher complexity and power requirements.

There are many factors we don’t know anything about, so there is some uncertainty in the brightness we predict.

Two circles, one filled with yellow and orange, indicating the brightness of a million satellites, compared to a mostly grey circle with dots of light from 42,000 satellites.
Predictions for satellite brightness and positions comparing SpaceX’s proposed one-million-satellite AI data centres with a previously approved 42,000 satellite megaconstellation.
(Lawler et al. 2022), CC BY-NC-ND

In the figure above, each grey circle shows a simulation of the full night sky, as seen from latitude 50 degrees north at midnight on the summer solstice.

The left circle shows the night sky with SpaceX’s orbital data centres (SXODC), and the right shows the night sky with 42,000 Starlink satellites for comparison.

The coloured points show the positions and brightness of satellites in the sky, with blue the faintest and yellow the brightest. Below each all-sky simulation we list the number of sunlit satellites in the sky (Ntot) and the number of naked-eye visible satellites (Nvis), with tens of thousands predicted for SXODC.

Each of our simulations shows there will be more visible satellites than stars for large portions of the night and the year.

It is hard to overstate this: Should a million new satellites be launched, in the orbits and with the sizes proposed, the stars we are able to see at night would be completely overwhelmed by artificial satellites — throughout the world.

This does not even account for additional large satellite system proposals filed to the International Telecommunication Union (ITU) in recent years by numerous national governments.

A satellite crematorium

SpaceX’s proposal is that these new satellites will operate as orbital data centres.

Data centres on the ground are drawing increasing criticism for the huge amounts of water and electricity they use. In an impressive feat of greenwashing, SpaceX suggests that launching data centres into orbit is better for the environment. This is only true if you ignore all the consequences of satellite launch, orbital operations and re-entry.

We can already measure atmospheric pollution from “re-entries,” when satellites fall back to Earth. We know that multiple satellites are falling every day and that if they do not fully burn up on re-entry, debris falls on the ground with risk for injury and death.




Read more:
SpaceX space junk crashed onto Saskatchewan farmland, highlighting a potential impending disaster


Increasing densities of satellites also drive up collision risks in orbit. And using the atmosphere as a satellite crematorium is changing the atmosphere in ways we don’t yet understand.

Practically, it is not at all clear whether the proposed orbital data centres are feasible any time soon. To operate data centres in orbit, they would need to disperse huge amounts of waste heat. Despite the greenwashing, this is actually very hard to do in space as they would have to manage the intense radiation from the sun, while cooling the satellite by radiation.

SpaceX should know this well: one of the first brightness mitigations they tested for Starlink was “darksat,” a Starlink satellite they effectively just painted black. The satellite overheated and the electronics fried.




Read more:
A new space race could turn our atmosphere into a ‘crematorium for satellites’


A slap in the face for astronomers

SpaceX has done a lot of engineering work to make its Starlink satellites fainter. They are still too bright for research astronomy, but thanks to new coatings, their brightness has not increased dramatically even as SpaceX has launched larger and larger satellites.

SpaceX’s proposal for one million AI data centre satellites with enormous power requirements does not include any discussion of the co-ordination agreement for dark and quiet skies required by the FCC.

It feels like a slap in the face after many astronomers have spent years working with SpaceX on ways to mitigate their Starlink megaconstellation and save the night sky.

Orbital space is a finite resource

The SpaceX filing does not include exact orbits, the size or shape of satellites or the casualty risk from de-orbiting (other than a vague promise that it won’t exceed 0.01 per cent per satellite). It doesn’t even include any information on how the company plans to develop the technology that does not currently exist but is needed to make this plan work.

Despite how shockingly little information SpaceX provided, the FCC accepted SpaceX’s filing and opened the comment period within four days. Astronomers and dark sky advocates worldwide scrambled to write and submit comments in the short four weeks that the comment period was open.

The scientific process is slow and careful and it often takes months or years to publish a peer-reviewed result. Companies like SpaceX have stated repeatedly that their method is to “move fast and break things.” They are now close to breaking the atmosphere, the night sky and anything on the ground or in space that their satellites and rockets fall on or crash into.

Earth’s orbital space is a finite resource. There is an evolving set of international guidelines for operating in outer space, grounded in a set of high-level international rules. Yet, those rules and guidelines are inadequate.

One corporation based in one country should not be allowed to ruin orbit, the night sky, and the atmosphere for everyone else in the world.

The Conversation

Samantha Lawler receives funding from the Natural Sciences and Engineering Research Council of Canada. She is a fellow of the Outer Space Institute.

Aaron Boley receives funding from NSERC, the Canada Tri-agency, and the Department of National Defence. He co-directs the Outer Space Institute.

Hanno Rein receives funding from NSERC.

ref. A million new SpaceX satellites will destroy the night sky — for everyone on Earth – https://theconversation.com/a-million-new-spacex-satellites-will-destroy-the-night-sky-for-everyone-on-earth-277938

War in Iran: Why destroying cultural heritage is such a foolish strategic move in any conflict

Source: The Conversation – Canada – By Costanza Musu, Associate Professor, Graduate School of Public and International Affairs, L’Université d’Ottawa/University of Ottawa

The ornate ceiling of the Ali Qapu Palace in Isfahan, Iran. It’s a UNESCO Heritage site that began construction in the 1500s and has been damaged by U.S.-Israeli strikes on Iran. (Matt Biddulph), CC BY

Since the start of the ongoing United States–Israeli military campaign against Iran, the human toll of the conflict has mounted relentlessly.

Civilian casualties have been reported across the country, and the bombing campaign has caused widespread destruction to infrastructure. Alongside military targets, thousands of civilian buildings have been damaged or destroyed in the first weeks of the war.

Amid this destruction, another dimension of the conflict is increasingly drawing international concern: the damage inflicted on Iran’s cultural heritage.

Several historically significant sites, including UNESCO landmarks, have been affected. Blasts in Tehran have damaged the Golestan Palace, while strikes in Isfahan hit structures around Naqsh-e Jahan Square, including Ali Qapu Palace, Chehel Sotoun and the Masjed-e Jameh.

The destruction of such sites highlights a frequently overlooked consequence of warfare: when the rules governing the conduct of war are stretched or ignored, cultural heritage, like civilian lives, becomes collateral damage.

Rules of engagement

Warfare is not meant to be unconstrained. It is governed by international humanitarian law, which sets limits on how military force can be used once hostilities begin. These rules are intended to reduce the human and material devastation of armed conflict by protecting civilians and civilian objects.




Read more:
Israeli strikes on Tehran oil depot highlight gaps in international law


States implement these legal obligations through rules of engagement, which guide how and when force may be used in compliance with international humanitarian law: what U.S. Secretary of War Pete Hegseth has dismissively called “stupid rules of engagement.”

International humanitarian law protects cultural heritage. After the widespread destruction of the Second World War, states adopted the 1954 Hague Convention, recognizing monuments, museums and archeological sites as specially protected cultural property, and requiring warring nations to refrain from attacking them except in cases of imperative military necessity.

Ignoring cultural property protections runs counter to a lesson many military forces, including the United States, have come to recognize: that safeguarding cultural heritage is not only a legal obligation, but also strategically smart.

Over the past two decades, this approach has increasingly been integrated into military doctrine. By protecting monuments and historic sites, military forces signal respect for a society’s identity, build trust with local populations and advance broader political objectives by fostering local civilian support.

Shifting public sentiment

In the current conflict, American officials have argued that the military campaign is aimed not at Iran’s people but at the regime that has ruled the country since the 1979 revolution.




Read more:
What happens next in US-Iran relations will be informed by the two countries’ shared history


U.S. President Donald Trump has suggested that the future of Iran now lies in the hands of its citizens, implying that the weakening of the regime could allow Iranians to shape a different political future.

Initially, some voices in the Iranian diaspora and within Iran welcomed the strikes in the hope that they might open the door to political change.

Yet the scale of the destruction inflicted on cities, infrastructure and cultural landmarks appears to be shifting public sentiment, allowing the Iranian leadership to rally the population around a narrative of national unity against foreign aggression.

At the same time, the conflict is threatening cultural heritage beyond Iran. Iranian missiles have struck areas in and around Jerusalem, where its Old Town contains some of the most significant religious and historical sites in the world within barely one square kilometre. These sites are sacred to Judaism, Christianity and Islam.

If the stated objective of the military campaign is to weaken the Iranian government and open the possibility for political change, the destruction of cultural heritage will produce the opposite effect. Cultural monuments, historic cities and religious sites are not simply architectural artifacts; they are powerful symbols of collective identity and historical continuity.

When they’re damaged or destroyed by foreign military force, the attack is often perceived not only as a strike against a government but an assault on the nation itself.

A black-and-white photo shows a destroyed cathedral.
The German Luftwaffe destroyed Coventry Cathedral in 1940 during the Second World War, strengthening British resolve against the Nazis.
(Imperial War Museum)

Rallying citizens

History offers many examples of how damage to cultural heritage during wars can galvanize nationalist sentiment and strengthen the legitimacy of governments under pressure. Examples include the destruction of the Old Bridge of Mostar during the Bosnian War, which became a powerful symbol of national loss and identity, to the levelling of Palmyra’s ancient temples by ISIS, which the Syrian government invoked to reinforce claims of cultural guardianship and political legitimacy.

Rather than weakening the Iranian leadership, widespread destruction, particularly when it affects cultural landmarks, may instead help it mobilize public anger and rally citizens around the defence of the country.

Both international law and historical experience point in the same direction: protecting cultural heritage is not only a humanitarian obligation, but a strategic consideration in conflicts with long-term outcomes that depend on the attitudes of the people affected.

The Conversation

Costanza Musu receives funding from the Social Sciences and Humanities Research Council of Canada.

ref. War in Iran: Why destroying cultural heritage is such a foolish strategic move in any conflict – https://theconversation.com/war-in-iran-why-destroying-cultural-heritage-is-such-a-foolish-strategic-move-in-any-conflict-277922

Claims about genetic superiority ignore the real drivers of human inequality

Source: The Conversation – Canada – By Robert Chernomas, Professor Of Economics, University of Manitoba

Political leaders like United States President Donald Trump and business oligarchs like Elon Musk have increasingly suggested that human behaviour and social outcomes are rooted in genetics.

Trump has repeatedly suggested that problematic behaviours are genetic and inherent, while Musk has advocated for “intelligent” people to have children. His Grokipedia even frames racist concepts like racial nationalism positively while drawing on eugenic ideas, claiming that preserving distinct racial genetic profiles “maximizes individuals’ inclusive fitness.”

These arguments are taking us back to one of the darkest periods in human intellectual history: when eugenics was alive and well. Eugenics is the mistaken belief that a society’s genetic pool can be “improved” by limiting the reproduction of those deemed inferior and encouraging the breeding of those deemed superior.

Eugenics is now regarded as “the most egregious example of the destructive misuse of science in all human history,” as evolutionary biologist Richard Prum put it.

Yet this pseudoscientific way of thinking has not disappeared. It has re-emerged in new forms, primarily among tech capitalists and conservative politicians advocating for policies like forced migration, fertility assistance and genetic engineering to create a “fitter” nation.




Read more:
Racism never went away – it simply changed shape


In our recent book, The American Gene: Unnatural Selection Along Class, Race, and Gender Lines, we show that differences in complex behavioural traits among groups are not the natural outcome of inborn human biology, but the product of systemic economic inequality.

We can illustrate this by focusing on two of the most popularly discussed in the nature-versus-nurture debate: health and intelligence.

The limits of the human genome

The US$3 billion Human Genome Project set out to identify “the key genes underlying the great medical scourges of humankind.” Bill Clinton called it “the most important, most wondrous map ever produced” when he was U.S. president.

Yet except for rare diseases caused by one or a few genes, genomic data has had limited success in predicting complex diseases like heart disease, cancer, mental health disorders or addiction.

Scientists have found dozens of genetic variations associated with complex diseases, but the combined effects of these genes have explained very little about heritable risk. Even with the complete human genome sequenced, predicting health outcomes from genetics has proven challenging.

In fact, in 2013, the Food and Drug Administration ordered 23andMe to stop marketing certain genetic disease risk information to consumers until they received regulatory clearance.

Environment shapes health more than genes

Some scientists, including molecular biologist James Watson, the first director of the Human Genome Project and a disgraced Nobel laureate, have argued that genetics largely determine health hierarchies.

He once suggested that New Jersey’s high cancer rates were mostly due to residents’ “genetic constitution” rather than environmental factors.

This logic is flawed. It would suggest that the people of New Jersey had uniquely cancer-prone DNA compared to the rest of the population, which seems unlikely. Further undermining Watson’s theory is the fact that cancer rates followed the changing location of the chemical industry, which fled New Jersey’s increasingly costly environmental regulations for Louisiana.

“Cancer Alley” in Baton Rouge, Louisiana — an 85-mile stretch of the Mississippi River lined with some 200 fossil fuel and petrochemical production plants — became home to the nation’s highest cancer rates, affecting the region’s disproportionate Black and Brown population.

In the words of bio-statistician Melanie Goodman: “ZIP Code is a better predictor of health than genetic code.”

Further evidence against genetic determinism comes from migrant studies. Research has found ethnic groups with low breast cancer rates in their home countries, such as China, Japan and the Philippines, often experience higher disease rates after migration.

Similar patterns appear in studies of coronary heart disease among people of Japanese ancestry who lived in Japan, Hawaii and California. Those who adopted more westernized lifestyles had higher rates of disease.

Intelligence is a product of opportunity

Researchers like Richard Hernstein, Charles Murray, David Reich and Nicholas Wade have insisted on a link between genetics, race or ethnicity, and what they describe as a hierarchy of intelligence.

In these arguments, Ashkenazi Jews are often placed at the top of the hierarchy, while people of African descent are placed lower. Although the discussion always revolves around genetic inheritance, they have yet to identify the specific genes that would justify this hierarchy.

Where proponents attempted to provide empirical support, the argument often rested on a residual claim: even after accounting for all the social variables that might influence intelligence, an unexplained component remained and was therefore presumed to be genetic.

On the other side of the debate are researchers like James Flynn, who argued intelligence is determined more by environment than genetics.

A TEDTalk by researcher James Flynn about why our IQ levels are higher than our grandparents’.

Flynn documented a steady rise in intelligence test scores across the 20th century in a pattern now known as the “Flynn Effect.” He found that between 1933 and 1983, American IQs increased by around three points per decade. He argued people’s minds were sharpened by better education and more intellectually demanding jobs and hobbies.

Flynn also found larger impacts in lower-income nations. Kenya and several Caribbean nations, for example, had much larger increases in IQ scores than Scandinavian countries because, he argued, the conditions for learning had improved more in the former nations than the latter.

Lived experience influences our genes

Advances in the revolutionary field of epigenetics have shifted the nature-versus-nurture debate by identifying a pathway through which lived experience can impact what were previously thought to be fixed processes.

Epigenetics refers to mechanisms that affect gene expression — how much a gene is used or not — without changing the DNA sequence itself. These mechanisms function somewhat like a dimmer switch, turning genes on and off, or adjusting the intensity of their effects.

Growing evidence suggests that epigenetic mechanisms are impacted by the conditions in which people live, which in turn influence human traits and outcomes. Some of these epigenetic changes may even be transmitted across generations.

In other words, nurture has a direct influence on nature.

Claims about the supposed genetic superiority of some human beings over others rarely account for the complexity of these additional types of inheritance.

Opportunity matters more than genetics

A growing body of research suggests that social and economic opportunity plays a far greater role in shaping human outcomes than genetic inheritance.

As biologist Siddhartha Mukherjee pointed out, “it is impossible to ascertain any human, genetic potential without first equalizing environments.”

Decades earlier, Henry Wallace, who served as vice-president under Franklin D. Roosevelt, similarly suggested that if children from rich and poor families were given the same food clothing, education, care and protection, class lines would likely disappear.

Historical evidence supports this view. Our research shows that when structural barriers are reduced and marginalized groups have the same opportunities as more privileged groups, inequalities shrink dramatically.

By way of example, the economic and social changes following U.S. civil rights legislation led to major improvements in the health, education and income of Black Americans — despite no change in their genetic makeup — highlighting the role of structural racism and social policy.

People should be significantly more concerned with the effects of the policies imposed by the Trumps and Musks of the world than the DNA passed on by their parents.

The Conversation

Ian Hudson receives funding from SSHRC. Ian Hudson is a Research Associate for the Canadian Centre for Policy Alternatives.

Robert Chernomas does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

ref. Claims about genetic superiority ignore the real drivers of human inequality – https://theconversation.com/claims-about-genetic-superiority-ignore-the-real-drivers-of-human-inequality-275393

Ontario’s proposed nuclear waste repository must obtain consent from all affected First Nations

Source: The Conversation – Canada – By Larissa Speak, Assistant Professor, Lakehead University

In January, the Impact Assessment Agency of Canada (IAAC) initiated an assessment of a proposed nuclear waste repository in northwestern Ontario. The repository is being advanced by the Nuclear Waste Management Organization (NWMO), which is charged with finding a long-term solution to Canada’s mounting nuclear fuel waste.

The NWMO has proposed building an underground repository at a site near the Township of Ignace and the Wabigoon Lake Ojibway Nation. The proposal has received support from the township and First Nation, but it remains deeply contentious with other First Nations.

The impact assessment process recently began with the NWMO filing an initial project description, followed by a public commenting period. Nearly 900 comments were received, including written submissions from 22 First Nations, five regional and treaty organizations, and the Assembly of First Nations.

Many of the responses from First Nations hinge on differing interpretations of free, prior and informed consent. The NWMO sought the consent of one First Nation near the proposed repository site. However, Indigenous submissions argue that NWMO should also seek consent from all First Nations whose rights, interests, territories and watersheds could be affected by a repository.

Our research includes a focus on the administrative, regulatory and legal processes being used to make decisions about nuclear waste disposal. We’re especially concerned that Indigenous consent is being framed in a way that excludes many First Nations whose members and territories could be affected by the proposed repository.




Read more:
Ontario’s proposed nuclear waste repository poses millennia-long ethical questions


Free, prior and informed consent

In 2005, the NWMO publicly committed to a consent-based siting process, including finding a “willing host” for its proposed waste repository. In 2018, it committed to seeking free, prior and informed consent from affected Indigenous Peoples.

The principle of seeking Indigenous consent is enshrined in the United Nations Declaration on the Rights of Indigenous Peoples (UNDRIP). It states that governments should seek input and consent from affected Indigenous communities for any developments that take place on their territories.

In particular, Article 29 of UNDRIP states that “no storage or disposal of hazardous materials shall take place in the lands or territories of Indigenous peoples without their free, prior and informed consent.”

The NWMO began its site selection process in 2010. In 2024, the municipality of Ignace signed a hosting agreement with the NWMO. Later that year, Wabigoon Lake Ojibway Nation members voted in favour of “in-depth environmental and technical assessments” to determine a suitable site.

Shortly thereafter, the NWMO announced that it had selected a site in northwestern Ontario, with Ignace and Wabigoon Lake Ojibway Nation as host communities.

First Nations criticize the process

The site selection process was contentious, with several potentially affected municipalities, First Nations and regional/treaty organizations voicing opposition. Many First Nations were critical of the NWMO’s site selection process, particularly their approach to seeking Indigenous consent.

Eagle Lake First Nation is challenging the NWMO’s site selection decision in court, arguing that the repository site is on its traditional territory and that the project cannot proceed without its free, prior and informed consent.

The NWMO said the repository site was chosen “following extensive technical study and community engagement,” and that Eagle Lake is an “important community in the region” it wants to work with.

The NWMO’s initial project description made no mention of regional and Indigenous opposition to its proposed repository. Instead, it emphasizes the consent of adjacent communities and its engagement with Wabigoon First Nation’s laws and processes.

Nipissing First Nation expressed concern that “consent is treated as a local regime, while the risk is region-wide and intergenerational.” As a result, “one nation is positioned as a moral and political shield for a project that affects many others.”

Other First Nations raised concerns with the large monetary payments NWMO made to host communities. Lac Des Mille Lacs First Nation noted:

“The magnitude of these expenditures far exceeds what is reasonably required to support neutral engagement or capacity building and appear to have been a decisive factor in securing local acquiescence.”

Eagle Lake First Nation and Ojibway Nation of Saugeen — both First Nations with territorial claims to the repository site — emphasized that their nations have not consented to the NWMO’s proposal.

NWMO recently released a response to various comments from project stakeholders. However, the response does not acknowledge these criticisms from First Nations.

Consent for widespread risk

First Nations called on the NWMO to seek the free, prior and informed consent of all affected First Nations, including those with overlapping territorial claims to the repository site, those whose territories encompass other essential project activities like nuclear waste transportation and repackaging and those situated downstream of project activities.

Considering the scale and scope of project activities and the potential for widespread harm should something go wrong, the Indigenous understanding of consent offers a standard that recognizes interconnectedness, interdependence and ecological reality.

Mississaugas of Scugog Island First Nation called on the IAAC to require NWMO to develop a strategy “that addresses all potentially impacted First Nations, including those impacted by used nuclear fuel repackaging at existing storage sites and along transportation corridors.”

Kebaowek First Nation also called for the recognition of FPIC rights of “all First Nations whose lands, territories and/or other resources may be affected.”

Several Indigenous communities argued that the NWMO must engage with the laws, processes and protocols of affected First Nations. Grand Council Treaty #3’s submission asserted that the impact assessment process should be put on hold until it is harmonized with the grand council’s laws and protocols.

Eagle Lake First Nation and Ojibway Nation of Saugeen also called for the impact assessment process to be put on hold until territorial disputes to the repository site are resolved and the NWMO obtains their consent.

NWMO’s recent response to comments on the initial project description did not directly address whether additional First Nations and Treaty organizations also have a right to provide or withhold consent to the proposed repository.

Given the positions of many First Nations, NWMO must seek input from all First Nations affected by the repository project before it goes any further. And the IAAC should carefully examine the impact assessment process to ensure engagement with First Nations and treaty organizations focuses on obtaining their free, prior and informed consent.

The Conversation

Larissa Speak has received research funding from the Social Sciences and Humanities Research Council. She is affiliated with Niniibawtamin Anishinaabe Aki, an Indigenous-led group concerned with the disposal of nuclear waste on Anishinaabe territory. She is a member of Animikii-wajiw or Fort William First Nation.

John Sinclair receives funding from the Social Sciences and Humanities Research Council of Canada. He is a long time member of the Canadian Environment Network’s Environmental Planning and Assessment Caucus.

Warren Bernauer receives funding from the Canada Research Chair program. He is affiliated with Niniibawtamin Anishinaabe Aki, an Indigenous-led group concerned with the disposal of nuclear waste on Anishinaabe territory.

ref. Ontario’s proposed nuclear waste repository must obtain consent from all affected First Nations – https://theconversation.com/ontarios-proposed-nuclear-waste-repository-must-obtain-consent-from-all-affected-first-nations-277735

South Africa’s gig economy workers set to get more protection under planned labour law reforms

Source: The Conversation – Africa – By Ruth Castel-Branco, Senior lecturer, University of the Witwatersrand

South Africa’s minister of employment and labour has published a sweeping set of proposed amendments to the Basic Conditions of Employment Act, the Employment Equity Act and the National Minimum Wage Act.

The aim is to

modernise key labour laws and introduce practical measures aimed at improving job security, promoting fairness, and extending fundamental rights to vulnerable and previously excluded categories of workers.

For workers on digital labour platforms, who access task-based work opportunities through an app, one amendment is particularly significant. Amendment 50A introduces expanded definitions of employer and employee that could extend labour and social protections to platform workers. These include minimum wages, paid leave, social security, occupational health and safety coverage, and the right to collectively bargain.

Until now, platform companies have largely avoided national regulations by presenting themselves as intermediaries rather than geographically tethered service providers. But the tide is turning as governments and international standard-setting institutions move to regulate the platform economy.

South Africa’s labour law amendment is a part of this broader global effort. Propelled by platform worker organising, several countries, including Kenya, Egypt and Nigeria, have introduced regulations for ride-hailing services. At the international level, member states of the International Labour Organization are expected to adopt new standards for platform work later this year. However, as one of the South African negotiators recently remarked, “the discussion about the platform economy … {is} like a battlefield”.

For the last five years the Future of Work(ers) research group at the Southern Centre for Inequality Studies has studied how digital labour platforms are restructuring the world of work and emerging efforts to regulate platform companies across Africa. Kenya has taken a sectoral route targeting e-hailing. South Africa’s approach is broader, but has the potential to exclude those who are in fact self-employed.

Our latest paper, Who counts as a worker?, explores the tensions inherent in regulating a sector defined by diverse and shifting work arrangements.

Why definitions matter

How workers are classified determines what rights they can claim, who they can claim them from and what kinds of benefits they can access.

South African labour law establishes minimum standards for employees. These include:

  • minimum wages and deductions

  • working hours and overtime pay

  • paid leave and parental benefits

  • health and social protections

  • disciplinary procedures

  • collective bargaining.

But platform companies have got around minimum standards by classifying workers as independent contractors rather than employees. The result is that working conditions are precarious. Platform workers work long hours, for low and unpredictable pay, with no health and social protections. And they bear the brunt of operational costs and risks. All while paying commissions to the company.

Platform companies insist that workers are self-employed. Yet the companies exercise high levels of control over the labour process through task-based work allocation and algorithmic management. Through a punitive system of ratings, suspensions and deactivations, platforms unilaterally shape the terms of work. In a recent survey conducted by the International Labour Organization, platforms argued that although workers were self-employed, they should not be allowed to refuse tasks or disconnect from the app.

The battlefield of definitions

It is likely that platform companies will challenge attempts to reclassify workers as employees. After all, calling workers self-employed has been integral to their business model. In Kenya, for instance, platform companies launched multiple legal challenges against new regulations. They have argued their cases on the grounds that:

  • the government lacked jurisdiction over their operations

  • labour minimum standards infringed on competition law

  • the regulations discriminated against migrant workers.

These challenges were shot down by the courts.

How will this amendment affect workers’ lives?

The proposed amendment to South Africa’s law does not regulate platform companies directly. Instead, it says that unless proven otherwise, a person who provides services to another is an employee, regardless of the employment contract. This is in accordance with the National Minimum Wage Act.

The employer has to prove that workers are genuinely self-employed. To qualify as self-employed, a worker must be able to exercise autonomy over the labour process and operate independently from the organisation of the employer.

Labour protections can be extended to platform workers in at least two ways.

The first is through sectoral determinations, made by the labour minister. These are useful in sectors where unionisation and collective bargaining is weak. They can be tailored to the specific dynamics of a sector, so that regulations improve conditions for vulnerable workers.

However, the existing sectoral determinations are not well suited to the reality of platform work. For example, workers may earn rates that appear to exceed the national minimum wage. Yet, their take-home pay may fall well below minimum levels, once investment and operational costs are factored in.

Similarly, conventional conceptions of ordinary hours of work may not reflect how the work is organised on a platform. And existing sectoral determinations don’t address questions like:

  • the term of algorithmic management

  • the ownership, governance and use of the vast amounts of data generated by workers

  • the integration of third parties, such as fintechs, on the platforms

  • the regulation of deductions, including commissions and service charges.

A second way to regulate platform work is to establish a bargaining council for the platform economy. This model would give greater voice to workers and employers in shaping the conditions of work in this emerging sector.

Given that governments are still trying to catch up to digitalisation, collective bargaining may offer more innovative and appropriate regulatory responses. Governments can then extend bargaining council agreements to all firms in the sector.

Workers’ voices

Regulations must be designed carefully to ensure that they strengthen rather than undermine platform workers’ power and agency. As our latest working paper notes, the platform economy encompasses diverse forms of work and varying degrees of subordination. As we recently discussed in a webinar, it is critical that platform workers’ organisations be included at the negotiating table. As our working paper argues, these definitional questions are more political than technical.

The Conversation

Ruth Castel-Branco receives funding from the International Development Research Group, FutureWORKS Collective: ESA.

Brenda Mwale receives funding from the Department of Science, Technology and Innovation.

ref. South Africa’s gig economy workers set to get more protection under planned labour law reforms – https://theconversation.com/south-africas-gig-economy-workers-set-to-get-more-protection-under-planned-labour-law-reforms-277858

Iran war could add to Nigeria’s security troubles. What to watch out for

Source: The Conversation – Africa (2) – By Al Chukwuma Okoli, Reader (Associate Professor) Department of Political Science, Federal University of Lafia, Nigeria, Federal University Lafia

The war between Iran and Israel and the US may have far-reaching regional and global implications.

By mid-March, there were signs that it could last longer than many had expected.

The longer it lasts, the greater the effects on the global landscape will be.

Barely three weeks into its outbreak, the violence caused disruptions to the flow of oil, resulting in a spike in oil prices.

But that’s not the only way Nigeria may feel its impact.

I am a security scholar and analyst who has researched and written extensively on aspects of Nigeria’s security challenges. These include insurgency, terrorism and counter terrorism.

This work has informed my view that the Iran-Israel-US war poses three fundamental threats to Nigeria’s national security. There could be:

  • heightened attacks by terrorists affiliated with Iranian Islamists

  • increased violence between Christians and Muslims

  • arms flows into Nigeria from Iran and its ideological allies, such as Hezbollah.

These possibilities stand to add to the country’s present security woes, which have been complicated by external jihadist proxies.

The threat of heightened terror attacks

Iran is believed to be a major sponsor of Islamic radicalism and extremism in Nigeria. Iran has suspected links with the proscribed Islamic Movement of Nigeria, a sect which has been accused of stoking anti-state militantism.

With the escalation of the conflict, agents and militants sympathetic to the Iranian cause may align with terrorists to orchestrate attacks on the US or western targets in Nigeria. Some of the terrorist organisations operating in the country are alleged to have links with extremist groups based in or associated with Iran.

Already, the US embassy and other strategic western interests in Nigeria have been placed on high alert.

There have been protests by the Shia brotherhood in Kaduna, Kano, Nasarawa and the Federal Capital Territory (Abuja) since the killing of the Iranian supreme leader, Ayatollah Ali Khamenei. The protesters have been condemning violence against Iran and the global Muslim populace.

Inter-faith tensions

The war may also rupture the delicate and volatile inter-faith and sectarian balance in Nigeria, pitting Christians against Muslims. The Nigerian population is split in nearly even portions between adherents of Islam and Christianity. There have in the past been incidents of religious violence between the groups, especially in the northern region of the country.

The solidarity protests by Muslims affiliated with the Islamic Movement in Nigeria are a predictor of violence. The sect, which wants an Islamic state in Nigeria, has been involved in a series of religious disturbances in the country over the Middle East crisis. It has often engaged the government security personnel in violent confrontations.

The arms trade

Lastly, the war could lead to an influx of arms into Nigeria.

The Nigerian authorities have, in the past, accused Iran of shipping arms into Nigeria, ostensibly for terrorists, based on some authoritative sources.

Given that Iran counts among the leading illicit arms suppliers to Nigeria, the escalation of violence in the country and the wider Middle East may lead to an influx of arms. Extremist groups in Iran might consider using their franchises in the Sahel to transfer arms to their terrorist affiliates and proxies in Nigeria.

The way forward

Nigeria’s national security apparatus needs to take steps to mitigate the impact of the crisis.

Firstly, its defence and intelligence arsenals need to stay alert. They must be able to detect and respond to threats in a timely and sustainable manner.

Secondly, the country’s borderlands and frontiers need to be protected and policed to avoid the inflow of arms and militants. Tensions in some parts of northern Nigeria, such as Kaduna and Kano, should be carefully addressed. This should not be done with excessive military force, or it could provoke violent backlash.

Importantly, Nigerians should avoid inciting ethno-religious or sectarian violence. Citizens should conduct themselves in a manner that enables peace to prevail.

The Conversation

Al Chukwuma Okoli is a Professor of Security Governance at the Federal University of Lafia, Nigeria. He has consulted for the UN Women, African Union, UNDP, among others. He is a member of Amnesty International as well as Conflict Research Network West Africa (CORN-WA)..

ref. Iran war could add to Nigeria’s security troubles. What to watch out for – https://theconversation.com/iran-war-could-add-to-nigerias-security-troubles-what-to-watch-out-for-278462

Et si la transmission d’entreprise aux salariés était la solution que la France ignore ?

Source: The Conversation – France (in French) – By Arnault Violet, PhD Sciences de Gestion, Aix-Marseille Université (AMU)

Que se passe-t-il quand le dirigeant d’une PME ou d’une ETI part en retraite ? À qui transmet-il son entreprise ? En France, contrairement à d’autres pays, le rachat par les salariés n’est pas la solution la plus souvent adoptée. Pourtant, elle présente de nombreux avantages sur fond de désindustrialisation et d’inquiétudes pour l’emploi.


Une étude récente de Bpifrance Le Lab indique que d’ici à 2030, près de 59 000 petites et moyennes entreprises (PME) et entreprises de taille intermédiaire (ETI) pourraient être transmises en France. Cela représente environ 2 millions d’emplois. Pourtant, seules 26 000 de ces entreprises seraient effectivement transmises, bien en deçà du potentiel attendu.

Derrière ce constat se cachent des enjeux bien plus larges que la seule situation du dirigeant : maintien des emplois, préservation des savoir-faire, ancrage territorial des entreprises et stabilité du tissu productif français.

Un « silver tsunami »

Ce déséquilibre s’inscrit dans un contexte démographique particulier. La France fait face au vieillissement de ses dirigeants d’entreprise, un phénomène global qualifié de « silver tsunami ». Une part croissante d’entre eux approche de l’âge de la retraite et souhaite quitter ses fonctions sans pour autant disposer d’une solution de transmission adaptée, rendant la question des modalités de transmission primordiale.

Historiquement, la transmission familiale, notamment aux enfants, constituait la voie privilégiée pour assurer la continuité d’une PME ou ETI. S’inscrivant majoritairement dans une logique de transmission à titre gratuit, par donation ou succession, elle a favorisé l’émergence d’un dispositif fiscal avantageux au début des années 2000 : le pacte Dutreil. Toutefois, son efficacité économique a récemment été critiquée par un rapport de la Cour des comptes.




À lire aussi :
La coopérative : une solution contre les faillites d’entreprise ?


Aujourd’hui, cette forme de transmission est de moins en moins privilégiée. Les enfants ne souhaitent plus nécessairement reprendre l’entreprise familiale, pouvant même se sentir illégitimes pour en assurer la direction. Elle peut également susciter des tensions familiales, notamment en cas de pratiques de népotisme.

Vendre et pérenniser

Actuellement, la solution privilégiée par les dirigeants de PME et d’ETI est la vente à des tiers externes : 42 % d’entre eux l’indiquent dans l’étude de Bpifrance Le Lab. Paradoxalement, dans cette même étude, les critères jugés les plus déterminants lors d’une transmission ne sont pas le prix de vente, mais la pérennité de l’entreprise et la préservation de l’emploi. Or, le principal obstacle réside dans l’insuffisance d’offres de reprise émanant de tiers externes. Cette rareté, combinée à la difficulté d’identifier des repreneurs externes qualifiés et suffisamment engagés, constitue un frein majeur, particulièrement prononcé dans les zones rurales.

Face aux difficultés rencontrées par ces deux modalités de transmission, une troisième possibilité demeure encore largement sous-explorée en France : la transmission de l’entreprise aux salariés.

L’actionnariat salarié s’inscrit dans une tradition bien établie dans notre pays, héritée de la pensée gaulliste, cherchant à concilier le travail et le capital. Cette tradition se traduit aujourd’hui par une diffusion significative de l’actionnariat salarié au sein des grandes entreprises cotées.

Un développement encore limité

En revanche, concernant les PME et ETI, son développement demeure bien plus limité. Il devient même extrêmement marginal lorsqu’il s’agit d’une transmission aux salariés, impliquant la détention d’une part substantielle du capital, au-delà des seuls rachats réalisés par le top management.

Ce constat semble étonnant au regard des succès observés à l’international, où des dispositifs législatifs ont permis de démocratiser la transmission d’entreprises aux salariés, en particulier au sein des PME et ETI.

Aux États-Unis, l’Employee Stock Ownership Plan (ESOP), instauré dès 1974 par l’Employee Retirement Income Security Act, théorisé par le banquier Louis Orth Kelso, couvre aujourd’hui plus de 6 000 entreprises non cotées et près de 2 millions de travailleurs actifs. Au Royaume-Uni, le Finance Act 2014 introduit l’Employee Ownership Trust (EOT), devenu une véritable success story, notamment en raison de ses avantages fiscaux. Enfin, en octobre 2025, le parlement slovène a adopté un dispositif législatif, combinant le modèle américain et la tradition coopérative européenne : le « sloESOP ».

Ces exemples illustrent que de nombreux pays ont su reconnaître les avantages de la transmission d’entreprise aux salariés. Cette modalité de transmission offrant des réponses à des enjeux auxquels la France est aujourd’hui confrontée.

Un outil contre la désindustrialisation ?

Outre la problématique démographique des dirigeants d’entreprise mentionnée au début de l’article, la France connaît depuis plusieurs années une perte progressive de sa souveraineté économique, dans un contexte de désindustrialisation. Ce phénomène a notamment été mis en avant par l’ancien ministre de l’économie, du redressement productif et du numérique, Arnaud Montebourg, lors d’une commission d’enquête à l’Assemblée nationale. Encourager davantage la transmission d’entreprise aux salariés contribuerait au maintien des entreprises et des savoir-faire sur le territoire français, tout en limitant les risques de délocalisation liés aux cessions à des tiers externes.

La transmission de l’entreprise aux salariés présente également une dimension structurelle : elle favorise la diffusion de la propriété, permettant d’une part l’intégration des salariés à la gouvernance de l’entreprise, et d’autre part, la réduction des inégalités de richesse en France, qui ne cessent de se creuser au fil des années.

Deux dispositifs législatifs

Mais alors, pourquoi la transmission d’entreprise aux salariés peine-t-elle à se démocratiser en France ? Quels sont les dispositifs juridiques existants, et pourquoi demeurent-ils si peu mobilisés au sein des PME et ETI ?

BFM Business, 2025.

Le paysage français de la transmission d’entreprise aux salariés comprend deux grands dispositifs législatifs.

Le premier est la société coopérative et participative (Scop). Elle repose sur la propriété collective et le contrôle démocratique selon le principe « une personne = une voix », indépendamment du capital détenu. Les salariés y sont majoritaires au capital comme dans la gouvernance. L’objectif premier du modèle n’est pas la maximisation du profit, mais la pérennité de l’entreprise.

Le second dispositif est le fonds commun de placement d’entreprise (FCPE) de reprise, qui permet aux salariés d’épargner progressivement au sein du plan d’épargne entreprise afin d’acquérir, au terme du processus, une participation significative au capital. La gouvernance du FCPE de reprise est assurée par un conseil de surveillance, dont les membres sont élus parmi l’ensemble des porteurs de parts. Bien que très peu mobilisé, ce dispositif a néanmoins connu des réussites notables.

Concernant les freins, ceux-ci ont été identifiés dans le cadre d’un travail de recherche récent. Ils tiennent d’abord à un déficit d’information et de formation parmi les professionnels de l’accompagnement, tels que les experts-comptables. Le second obstacle est financier : les salariés disposent rarement des capacités d’investissement suffisantes, d’où l’intérêt de mettre en place des mécanismes de garantie publique. Enfin, le cadre fiscal actuel demeure peu incitatif à l’adoption de cette modalité de transmission…

The Conversation

Arnault Violet ne travaille pas, ne conseille pas, ne possède pas de parts, ne reçoit pas de fonds d’une organisation qui pourrait tirer profit de cet article, et n’a déclaré aucune autre affiliation que son organisme de recherche.

ref. Et si la transmission d’entreprise aux salariés était la solution que la France ignore ? – https://theconversation.com/et-si-la-transmission-dentreprise-aux-salaries-etait-la-solution-que-la-france-ignore-277408