How Israel’s domestic crises and Netanyahu’s aim to project power are reshaping the Middle East

Source: The Conversation – Global Perspectives – By Spyros A. Sofos, Assistant Professor in Global Humanities, Simon Fraser University

Israel’s recent strikes on Iranian territory have been widely framed as an act of deterrence or yet another episode in a protracted regional rivalry.

Such interpretations overlook the deeper motivations behind Israel’s actions.

As a global humanities scholar who specializes in Middle Eastern politics, I believe the world is watching the convergence of a domestic political crisis and a profound strategic shift as Israel evolves into a more aggressive entity in a fragmented international order.

Political survival

At the centre of Israel’s current strategic turn lies Prime Minister Benjamin Netanyahu — a beleaguered leader fighting for political survival, but also considered a calculating, opportunistic operator with a particular vision of the Middle East.

At home, Netanyahu, confronting an unprecedented convergence of challenges — multiple corruption indictments, mass protests against what many consider a self-serving judicial overhaul and a fragile governing coalition — has leaned into military escalation as both a defensive reflex and a political instrument. He’s seemingly deploying it to both mute dissent at home and assert control abroad.

A sea of people carrying white and blue flags surround a bonfire.
Israelis opposed to Prime Minister Benjamin Netanyahu’s judicial overhaul plan set up bonfires and block a highway during a protest in March 2023.
(AP Photo/Ohad Zwigenberg)

But Netanyahu’s ambitions appear to extend beyond his immediate political survival. He seems to be striving for a legacy-defining “1967 moment” — a transformative reordering of the regional landscape in the Middle East that sidelines the Palestinian issue and entrenches Israeli supremacy.

This dual imperative — domestic survival and amassing power in the region — likely shapes Netanyahu’s recent actions, including the strike on Iran, the expanded occupation of Syrian territory, the October 2024 attack on Lebanon and the ongoing assaults on Gaza and the West Bank.

By describing each military campaign as a reluctant necessity — forced upon him by Iran, Hamas or even his coalition hardliners — Netanyahu maintains public support as he consolidates power. His government has used war-time conditions to suppress public protest, push forward its radical constitutional agenda and advance his geopolitical vision.

The result is a volatile but calculated strategy that is likely to mark Netanyahu’s tenure, though with significant repercussions for regional stability.

Israel’s grand strategy

While Netanyahu’s actions could serve his immediate political ends, they also reflect a longer-term shift in Israeli grand strategy. Following the Oct. 7, 2023 Hamas attacks, Israel intensified a long-standing pattern of pre-emptive strikes and campaigns to neutralize its adversaries. This strategy has been pursued at an unprecedented scale in Gaza, but often without a clearly articulated political endgame.

This pattern echoes a regional policy doctrine Netanyahu laid out in his 1993 book A Place Among the Nations when he asserted “the only peace that will endure in the region is the peace of deterrence.”

This policy advocates the projection of overwhelming Israeli power, the emasculation of regional challengers and efforts to radically reorder the Middle East.

Netanyahu’s doctrine, a more aggressive revision of Israel’s earlier pre-emptive security traditions, stands in sharp contrast to the approach pursued by the Oslo Accords-era leadership of the 1990s and 2000s — figures such as Yitzhak Rabin, Shimon Peres, and later Ehud Barak.

They emphasized diplomacy over coercive leverage and perpetual confrontation. They sought genuine political settlements and a negotiated co-existence with Palestinians and neighbouring Arab states. This strategy — rooted in compromise and limited reconciliation — has now been decisively eclipsed by Netanyahu’s highly militarized approach and his vision for achieving strategic power in the Middle East.

This approach underpins all of Israel’s modern-day actions — from its reoccupation of parts of Lebanon to its growing military footprint in Syrian territory, the obliteration of Gaza, its aggression against Iran and the increasing calls for Iranian regime change from the current Israeli cabinet.

From buffer to power projection

Nowhere is this clearer than in Israel’s expanding operations across its northern front. In Syria, Israel seized upon the post-Bashar al-Assad vacuum to entrench military control over at least 12 square kilometres of new terrain, constructing infrastructure and outposts far beyond prior ceasefire lines.

This had less to do with protecting minority populations or deterring Iranian proxies — as officials claimed — and more with establishing long-term buffer zones and projecting dominance into a fragile post-war Syria.

A similar pattern is evident in Lebanon. Following months of border escalation, Israel has sought not only to undermine Hezbollah’s capacity but to create no-go zones controlled by the Israeli military along the frontier. These operations reflect older strategic instincts but are now integrated in the ongoing process of Israel’s northern border redesign.

Finally, Israel’s bombing campaign against Iran reflects a doctrine to move beyond containment toward strategic dismantlement of the Iranian regime’s regional power and to erode its ability to control its own territory.

The escalation is the outcome of Israel’s pursuit of a favourable regional moment — the weakening of the so-called “Axis of Resistance” following the Abraham Accords of 2020 aimed at establishing diplomatic relations between Israel and several Arab nations — and months of war in Lebanon and Syria.

From ‘western ally’ to regional challenger

A constellation of domestic and international changes has enabled Israel’s transformation.

These include a shift in Israeli political culture encouraged by Netanyahu’s rejection of efforts to pursue some sort of regional co-existence and co-operation; the far right’s growing influence in government; and the ongoing disruption of the international order amid Donald Trump’s second presidency in the United States that gave Israel more room to manoeuvre.

This constellation has eroded the few constraints the liberal international order had in the past imposed on Israel’s pursuit of its regional policies amid an era of expansionism, permanent conflict and the aggressive management — not resolution — of the Palestinian issue.

Israel is now heading down the same path as Russia and Turkey, capitalizing on vast disparities in military and intelligence capabilities among regional powers to its advantage, disregarding international norms, undermining diplomacy and preferring transactional alliances instead of long-term peace processes.

The U.S. has facilitated this transformation. Former president Joe Biden and now Trump have made very little effort to constrain Netanyahu.

Trump’s “Gaza Riviera” plan, along with his isolationist rhetoric, have effectively left regional decision-making to Israel while he continues to underwrite Israeli military dominance and its use of overwhelming force to reshape its regional environment.




Read more:
Why Israel and the U.S. are sure to encounter the limits of air power in Iran


Netanyahu’s reluctance to accept the current ceasefire as a definitive end to hostilities with Iran reveals his and his cabinet’s regional revisionist reflexes.

Broader regional destabilization lies ahead as Israel seeks to destroy threats with immense military power without any strategic foresight.

The Conversation

Spyros A. Sofos 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. How Israel’s domestic crises and Netanyahu’s aim to project power are reshaping the Middle East – https://theconversation.com/how-israels-domestic-crises-and-netanyahus-aim-to-project-power-are-reshaping-the-middle-east-259359

Canadian community foundations rally to support local news, calling it essential to democracy

Source: The Conversation – Global Perspectives – By Magda Konieczna, Associate Professor of Journalism, Concordia University

A couple of weeks ago, a neighbour mentioned our son’s school might be moving. I couldn’t find anything about this online.

But I did find plenty of news from down south. While the erosion of democracy in the United States is something to pay attention to, some news outlets appear to be capitalizing on its sensational aspects.

When Donald Trump and Elon Musk get into an online fistfight, local news can seem like the less glamorous cousin.

But there’s really not much we can do about American democracy.

A poster on a lamp post that says ‘Good News is Coming.’
Jon Tyson/Unsplash, CC BY

Still, U.S. media reports have contributed to news burnout. Many Canadians are tuning out from their regular news sources. Forty per cent of Canadians responding to a survey from the 2025 Reuters Digital News Report said they were sometimes or often avoiding the news, as compared to 28 per cent eight years earlier.

Hearing about problems we can’t do much about is disempowering, according to a study on solutions journalism. Researchers found that readers who were treated as active civic participants rather than passive consumers felt more empowered.

The news about my kid’s school is something that profoundly impacts my family. And I can do something about it, at least in theory. I can attend public meetings and organize my neighbours to take a stand, in hopes of affecting the outcome of the discussions.

Local news can help me do that. It’s the very stuff that can help rebuild frayed community ties and mis- and disinformation. Without access to quality local news, malicious entities can more easily step into communities with misinformation designed to sway or mislead.

Voter turnout is higher in places with more newspapers. Local journalists act as news brokers, ensuring the flow of information, which is essential to fulfilling the information needs of communities. We know that when less local news is present, communities become more polarized, and that polarization leads to increased sharing of misinformation.

But local news is increasingly in trouble. Local news outlets are closing — 566 across Canada, to be precise, between 2008 and April 2025. That’s compared to the 283 that opened and remain in operation in that same period, according to the Local News Research Project.

Rallying to support local news

My recent report for The Canadian Philanthropy Partnership Research Network, “In Defense of the Local: How Community Foundations Across Canada are Supporting Local News” describes an increasingly popular way to support these local news outlets.

Through case studies, I documented — along with my research assistant, Jessica Botelho-Urbanski, and supported by our research team at OCADU — the early signs of a growing movement of Canadian community foundations supporting local journalism.

Community foundations across Canada are becoming ever more aware that many of the issues they care about, like building just and sustainable communities, are connected to the availability of local journalism.

And some communities are starting to fund their local news outlets.

For example, the Toronto Foundation made a rare, 10-year commitment to support The Local, a non-profit news outlet founded in 2019 that describes itself as “unabashedly Toronto, reporting from corners of the city that are too often ignored or misunderstood.”

a screenshot of a story on moss park
Screenshot of a story on ‘Moss Park’ from the digital news outlet The Local.
The Local

Sharon Avery, Toronto Foundation’s president and CEO, says the organization hadn’t spent much time prioritizing journalism because “the dots have not been connected …that a healthy local journalism equals a healthy community.” But she grew convinced of the essential links between local news and democracy, and realized local news is a powerful tool.

The Winnipeg Foundation has been interested in local news for a while. Most recently, it funded the salary for one reporter, shared between Winnipeg’s The Free Press, a major local newspaper, and The Narwhal, an environmentally focused digital news startup that had been looking to expand its coverage in the Prairies.

This kind of collaboration can improve the quality of work produced while also increasing the attention garnered by the resulting journalism in a way that is truly a win-win for all partners.

How to support local journalism

All of this is happening alongside government support, delivered through solutions like the Local Journalism Initiative, which funds journalists to report on under-covered topics, and the Canadian Journalism Labour Tax Credit, which covers a portion of salaries of eligible journalists.

Our report also includes recommendations on how place-based foundations can turn these initiatives into a movement to support local journalism. Community foundations could start by getting to know their local news ecosystems. What news organizations exist? What audiences do they serve?

They should also consider policies to direct some of their ad spending to local media, following the lead of the provincial government in Ontario, which has its four largest agencies allocate at least one-quarter of their annual advertising budgets to Ontario publishers.

Perhaps the most powerful — and most challenging — of our recommendations includes working with other local players to set up a community news fund.

This would enable funders to pay into a pool allocated to local news. This approach has generated millions for local news ecosystems in the U.S., Europe and South America.

Community foundations have the power to promote journalistic collaboration, which can help to combat mis- and disinformation.

To improve the quality of life and information for Canadians from coast to coast to coast, supporting local journalism is a must.

The Conversation

The contribution of the research assistant on the report described here was funded by a SSHRC grant obtained by the Canadian philanthropy partnership research network (PhiLab). The work was also supported by the Cultural Policy Hub at OCADU.

ref. Canadian community foundations rally to support local news, calling it essential to democracy – https://theconversation.com/canadian-community-foundations-rally-to-support-local-news-calling-it-essential-to-democracy-257873

Non-traditional sports like pickleball and bouldering are helping Canadians get active this summer

Source: The Conversation – Global Perspectives – By Sarah Woodruff, Professor, Director of the Community Health, Environment, and Wellness Lab, University of Windsor

While gym memberships and traditional sports will always have their place, more people are choosing leisure activities that are fun, flexible and social. (Shutterstock)

On a warm summer Canadian evening, you might hear the pop-pop of a pickleball game, spot someone scaling a climbing wall at a community centre or catch players rallying on a padel court — a fast-growing racquet sport that looks like a mix between tennis and squash.

What may once have seemed like fringe hobbies are now part of a growing movement. Canadians are seeking alternative ways to stay physically active, connect socially and improve their mental and physical well-being.

While gym memberships and traditional sports will always have their place, more people are choosing leisure activities that are fun, flexible and social.

Activities like pickleball, climbing, padel, disc golf, cricket, ultimate frisbee and stand-up paddleboarding are gaining momentum, offering a fresh approach to fitness that suits all ages, skill levels and motivations.

Why are these activities booming?

The COVID-19 pandemic played a big role in reshaping how people get physically active. With gyms closed and organized sports on hold, people turned to parks, driveways and community spaces for movement.

What began as temporary adjustments soon evolved into permanent shifts for some. Many people realized that being active didn’t have to be rigid or repetitive; it could be more social and genuinely enjoyable. TikTok videos and Instagram reels showcasing everything from “how to videos” to “beginner fails” have also helped pique curiosity and increase participation in these activities.

According to Pickleball Canada, 1.54 million Canadians are playing the sport in 2025 — a 57 per cent increase in participation over the past three years. Meanwhile, Padel, which is already popular in Europe and Latin America, is gaining ground in major Canadian cities like Toronto and Vancouver because of how accessible and easy to learn it is.

Sales increases in paddleboards, the debut of sport climbing at the Tokyo 2020/2021 Olympics and the increase in popularity of spikeball (also known as roundnet) all signal a broader shift toward fun, accessible and social forms of physical activity.

More than just exercise

The physical and mental health benefits of being physically active are well established, and yet many Canadians are still not active enough to meet the 24-Hour Movement Guidelines. The guidelines recommend that adults get at least 150 minutes of moderate-to-vigorous aerobic activity per week, perform muscle-strengthening activities twice a week, limit sedentary time and aim for seven to nine hours of quality sleep each night.

Alternative sports may help address this gap by offering new routes into physical activity. Beyond the well-known physical health benefits, such as cardiovascular health, strength, agility and co-ordination, these activities are equally effective at supporting mental health and social well-being.

For example, a recent study by Canadian researchers looked at 28 studies that investigated health and/or well-being of adult pickleball players. The results suggested positive social and psychological effects — in addition to health and fitness benefits — were evident, particularly for older adults.




Read more:
Light exercise can yield significant cognitive benefits, new research shows


Sports like pickleball, padel and ultimate frisbee thrive on social connection, as players and partners often chat, laugh, build relationships and have potlucks or social time afterwards, all which help build community and foster a sense of belonging.

Other activities, such as bouldering and climbing, encourage mental concentration, resilience and problem-solving, as routes are often designed to be attempted several times before being successful. This helps get people stronger and more confident, as they learn to keep trying even when something feels hard at first. This sense of progress and enjoyment keeps people motivated.

When an activity is fun, social and rewarding, people are more likely to stick with it over time. When people want to be active, rather than feeling like they have to, they’re more likely to reap the long-term benefits of being active. This is known as intrinsic motivation, a key factor for maintaining long-term physical activity because people are more likely to do something they genuinely like.

Because these alternative sports are fun, low-pressure and easy to try at any level, they offer a great starting point for anyone, regardless of age, experience or ability.

Embracing the movement

Across Canada, cities are increasingly investing in these growing recreational activities. Municipal parks and empty buildings are rapidly being repurposed for new pickleball and padel courts. According to an industry journal, the number of climbing gyms across Canada increased from 136 in 2021 to 169 in 2024.

Part of the appeal lies in accessibility. These types of activities are beginner-friendly. Unlike many traditional sports where skills and speed are expected upfront, there is no need to be in peak physical shape or have the best gear. Most people can try these activities with little more than a pair of shoes and a rental.

These activities are also adaptable and low-impact, making them accessible to a wide range of participants. They’re often intergenerational and focused more on enjoyment than competition.

Just as importantly, they support physical literacy — the confidence and competence to stay active throughout one’s life. Building physical literacy early and sustaining it throughout adulthood is a cornerstone of long-term health promotion and chronic disease prevention.

If you’ve been meaning to try one of these activities, this summer might be your chance. After all, fitness doesn’t have to be a chore; sometimes it starts with just showing up and saying yes to something different.

The Conversation

Sarah Woodruff receives funding from the Social Sciences and Humanities Research Council and We Spark Health Institute.

ref. Non-traditional sports like pickleball and bouldering are helping Canadians get active this summer – https://theconversation.com/non-traditional-sports-like-pickleball-and-bouldering-are-helping-canadians-get-active-this-summer-258771

How to deal with racism in an intimate relationship

Source: The Conversation – Global Perspectives – By Maya A. Yampolsky, Associate Professor, School of Psychology, Université Laval

Intimate racism can take many forms, ranging from hostile insults and racial slurs to more subtle, pervasive everyday microaggressions. (Shutterstock)

Relationships between people of different ethnic or racial backgrounds have become increasingly common. Research indicates that more adolescents and young adults are entering into inter-ethnic relationships, and survey data from the United States shows that an increasing number of people have a favourable view of these relationships.

Inter-ethnic relationships are often seen as an act of love that conquers racism since people from different backgrounds overcome marginalization to create inter-ethnic families.

While these bonds can potentially decrease prejudice against members of racialized groups, cross-cultural connections are also vulnerable to the far-reaching influence of racism.


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Intimate racism

Racism is a system of domination and oppression that is deeply rooted in colonization and slavery, where whiteness was idealized and every other ethnic group was dehumanized. Racialized people who are not white are also susceptible to endorsing this false hierarchy, leading to racism between racialized minority groups.

We use the term “intimate racism” (inspired by the term intimate partner violence) to highlight that racism exists in close relationships, and that it requires special attention.

Intimate racism can take many forms, ranging from hostile insults and racial slurs to more subtle, pervasive everyday microaggressions (for example, a parent stereotyping their child as less smart because of their racialized identity).

Intimate racism can also touch on prejudices against racialized people that are particular to physical and emotional intimacy, which show up differently in our familial and romantic relationships.

Racism in family

From childhood, we depend on our parents and family to support and guide us, helping us form secure attachments as well as stable and loving bonds within our families and with others as we grow and expand our social connections.

These days, multiracial families are more common. However, parents of multiracial children may not always understand their children’s realities with racism, they may not be able to support their racialized children against racism and they may discriminate against their racialized children, shaking the very foundations of the family bonds.

A sad girl sitting next to a window
These days, multiracial families are more common. However, parents of multiracial children may not always understand their children’s realities with racism.
(Shutterstock)

Mixed-race children have reported favouritism for lighter skin colour and isolation within their families, as well as having their racial identities denied and stereotyped by family members.

In a study on microaggressions in families, one mixed-race research participant told researchers:

“Even though my skin was darker, I had straight hair, I had the white features and I behaved the way a white girl should behave, and so my grandmother always favoured me and was much nicer to me and horrible to my sister.”

In addition, transracial adoption has a long history of racialized children being forced into white families and institutions in order to erase their heritage and cultural identity.

This legacy has endured, with many white adoptive families thinking they need to “save” racialized children from their minority families by erasing their backgrounds and cutting them off from their community.

Racialized adoptees in white families have shared that they experience identity erasure, denial of racism’s existence and microaggressions and insults from the very people who are supposed to protect them. Such experiences expose them to racial isolation and violence.

Racism in romantic relationships

Our close relationships are supposed to be safe from racism; our meaningful connections with people who we know accept us, love us and see us for who we are can act as a protection from the harms of oppression.

So when we experience racism from our loved ones, it is a violation of the shared trust, safety and intimacy that we need from those who are supposed to be closest to us.

When it comes to romantic partners, our attractions can sometimes be coloured by exposure to media and messages that frame racialized people as “exotic” or inferior.

People in inter-ethnic romantic relationships have shared experiences where their partner sought them out to fulfil fantasies based on degrading racist sexual stereotypes. Racialized people can also be stereotyped by their partners.

close up image of two people holding hands
When people experience intimate racism, they also experience greater distress and trauma and negative impacts on their well-being.
(Shutterstock)

These stereotypes can also be echoed by family and friends, who may view an inter-ethnic relationship as unserious and hold negative views of a partner based on racial stereotypes.

In a study of intimate racism conducted by one of us (Maya A. Yampolsky) and colleagues, a Black participant said: “My former partner accused all Jamaican males of being cheaters and liars.”

When people experience intimate racism, they also experience greater distress, trauma and negative impacts on their well-being. The impact extends beyond individual hurt to the relationship dynamic, rupturing trust and affection for our loved ones, and leading to strained or even dissolved relationships.

Groups that are subject to more than one source of marginalization (because of race, gender, class, ability and so on) face multiple oppressions with intimate racism. Racialized women face sexist expectations of submissiveness, and queer racialized people often experience both racism in LGBTQ2S+ spaces and homophobia or transphobia in their racial communities.

What can you do to address intimate racism?

There isn’t enough research that looks at resolving intimate racism yet, but we can draw on findings from couples conflict, anti-racism repairs and social therapy for inspiration.

Interracial couples who value the importance of ethnic identities and multiculturalism are more likely to recognize racism at large, and how it can influence their relationship, which may help prevent intimate racism from showing up in these relationships.

We know that repairing harm from racism involves acknowledging the impact rather than the intent of our actions, recognizing our own biases and how they appear in our life, apologizing sincerely and committing to changing our behaviour in the future.

Social therapy can also provide tools to address racial tensions and change harmful relationship dynamics by encouraging open conversations about race, and allowing partners and families to explore how history has shaped their ways of loving, accepting or rejecting one another.

Ultimately, tackling intimate racism is part of our work to dismantle racism at the roots of all our social institutions so that racism doesn’t creep into our cherished connections.

The Conversation

Maya A. Yampolsky has received funding from both the Social Sciences and Humanities Research Council and the Fonds de recherche du Québec.

Iman Sta-Ali, Libera Amadiwakama Mochihashi, and Renaud Dion-Pons do not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and have disclosed no relevant affiliations beyond their academic appointment.

ref. How to deal with racism in an intimate relationship – https://theconversation.com/how-to-deal-with-racism-in-an-intimate-relationship-247870

Neurodiverse kids at camp: How programs can become places where all children belong

Source: The Conversation – Global Perspectives – By Nicole Neil, Associate professor, Faculty of Education, Western University

For many families, summer camp is a rite of passage representing friendship, fun and freedom. But for families of children with neurodevelopmental disabilities, it can be a season of rejection, stress and exclusion.

While other children pack their bags for campfires and canoeing, many children with disabilities are told there’s no space for them, not because they don’t belong, but because the camp isn’t prepared. This is a reality faced by families of children with disabilities.

That’s why colleagues and I created the Inclusive Camp Hub (inclusivecamp.ca), a free, research-informed platform to help camps become places where every child can participate.

Why we needed to act

In Canada, about one in 11 children are diagnosed with a neurodevelopmental disability, such as autism, attention-deficit/hyperactivity disorder (ADHD) and intellectual disabilities. And yet, despite legal protections like the Accessibility for Ontarians with Disabilities Act, many camps report difficulties in creating inclusive environments.

Our research into inclusion in community settings, such as camps and museums, revealed consistent barriers: staff lacked training, resources were scarce and families were left with few options. As a result, children with neurodevelopmental disabilities were excluded from the same joyful, formative experiences their peers enjoyed.

These barriers have real consequences. Families often struggle to find respite during the summer, and children miss out on opportunities for social development, peer interaction and community belonging.

Building the Hub

Well-trained and supportive staff play a crucial role in fostering inclusion in camps. Interviews with families revealed the importance of staff who are kind, responsive and equipped to support a wide range of needs. It was clear that staff training needed to be a central focus of our work.

We designed The Inclusive Camp Hub to feature practical tools grounded in research from inclusive education to focus on staff training modules, tip sheets and real-world strategies that are easy to implement.

In studying and following a module about Universal Design for Learning, for example, camp directors or staff can consider strategies for providing multiple means of representation, engagement and expression — while ensuring physical spaces and materials are universally accessible.

Less awareness of cognitive accessibility

While many community settings have made strides in improving physical accessibility, adding ramps, accessible washrooms and mobility-friendly spaces, there has been far less attention paid to cognitive accessibility.

This includes designing environments that support different ways to participate, such as by making routines predictable and by making activities flexible enough to accommodate different ways of learning.

In developing the Inclusive Camp Hub, we drew on evidence-based practices identified in our research.

These include staff training, peer-mediated interventions and behavioural supports such as reinforcement systems and prompting. Reinforcement systems are structured ways to encourage behaviour by offering rewards or positive outcomes when those behaviours happen. Prompting means giving a child cues, like pictures, words or gestures, to help them complete a task such as using a visual schedule to show what comes next.

We also found that families with children with neurodevelopmental disabilities valued hands-on, multi-sensory learning experiences, clear signage, quiet spaces and staff who are kind and responsive. By incorporating these strategies into our training site, we aimed to make inclusion achievable and sustainable for camps of all types.

A model camp

To test and refine our approach to inclusion, we launched a model inclusive camp, called the S3 camp, at Western University.

We welcomed children ages nine to 14 — with and without neurodevelopmental disabilities — and focused on STEM activities, disability awareness and, most importantly, a sense of belonging.

The camp was staffed by students in a school psychology program, as well as education and STEM-field students who received specialized training and used inclusive design tools from the Hub. They learned how to create accessible activities, use behavioural supports, support communication differences and foster inclusive group dynamics.

The results were promising. We saw campers who had difficulty at other camps fully engaged in activities. Staff reported feeling more confident and capable in supporting children with disabilities, and parents said their children came home happy, proud and excited to return the next year.

Why camp inclusion matters

At first glance, summer camps might seem like a luxury — a fun experience rather than a critical developmental one. But camps offer more than just fun: they are powerful spaces for growth, learning and connection.

Research shows that children in inclusive settings experience improved social skills, stronger peer relationships and increased self-esteem. They learn through play, build friendships and develop a sense of belonging, all which are foundational for healthy development.

These benefits extend to all campers. Neurotypical children gain empathy, communication skills and a broader understanding of diversity

Looking forward

Inclusive Camp Hub is now expanding its reach, with plans to partner with more camps and extend its impact while continuing to refine our tools based on feedback from families, staff and community organizations.

Camp leaders can take the first step by exploring the free tools and training available through the Hub. Families and advocates can continue to ask questions, share their experiences and push for environments where all children are welcomed and supported.

As a researcher, I’ve spent years studying inclusion. But nothing compares to seeing it in action, watching a child find joy, friendship and confidence at camp. Every child deserves a summer of belonging.

The Conversation

Nicole Neil’s work is supported in part by funding from the Social Sciences and Humanities Research Council.

ref. Neurodiverse kids at camp: How programs can become places where all children belong – https://theconversation.com/neurodiverse-kids-at-camp-how-programs-can-become-places-where-all-children-belong-258793

A chance discovery of a 350 million-year-old fossil reveals a new type of ray-finned fish

Source: The Conversation – Global Perspectives – By Conrad Daniel Mackenzie Wilson, PhD candidate in Earth Sciences, Carleton University

An artist’s rendition of the newly discovered fish, _Sphyragnathus tyche_. (C. Wilson), CC BY

In 2015, two members of the Blue Beach Fossil Museum in Nova Scotia found a long, curved fossil jaw, bristling with teeth. Sonja Wood, the museum’s owner, and Chris Mansky, the museum’s curator, found the fossil in a creek after Wood had a hunch.

The fossil they found belonged to a fish that had died 350 million years ago, its bony husk spanning nearly a metre on the lake bed. The large fish had lived in waters thick with rival fish, including giants several times its size. It had hooked teeth at the tip of its long jaw that it would use to trap elusive prey and fangs at the back to pierce it and break it down to eat.

For the last eight years, I have been part of a team under the lead of paleontologist Jason Anderson, who has spent decades researching the Blue Beach area of Nova Scotia, northwest of Halifax, in collaboration with Mansky and other colleagues. Much of this work has been on the tetrapods — the group that includes the first vertebrates to move to land and all their descendants — but my research focuses on what Blue Beach fossils can tell us about how the modern vertebrate world formed.

a man stands agains a tall cliff
Blue Beach Fossil Museum curator Chris Mansky below the fossil cliffs.
(C. Wilson), CC BY

Birth of the modern vertebrate world

The modern vertebrate world is defined by the dominance of three groups: the cartilaginous fishes or chondrichthyans (including sharks, rays and chimaeras), the lobe-finned fishes or sarcopterygians (including tetrapods and rare lungfishes and coelacanths), and the ray-finned fishes or actinopterygians (including everything from sturgeon to tuna). Only a few jawless fishes round out the picture.

This basic grouping has remained remarkably consistent — at least for the last 350 million years.

Before then, the vertebrate world was a lot more crowded. In the ancient vertebrate world, during the Silurian Period (443.7-419.2 MA) for example, the ancestors of modern vertebrates swam alongside spiny pseudo-sharks (acanthodians), fishy sarcopterygians, placoderms and jawless fishes with bony shells.

Armoured jawless fishes had dwindled by the Late Devonian Period (419.2-358.9 MA), but the rest were still diverse. Actinopterygians were still restricted to a few species with similar body shapes.

By the immediately succeeding early Carboniferous times, everything had changed. The placoderms were gone, the number of species of fishy sarcopterygians and acanthodians had cratered, and actinopterygians and chondrichthyans were flourishing in their place.

The modern vertebrate world was born.

a small fish with a long wispy tail
A shortnose chimaera, belonging to the chondrichthyan group of vertebrates.
(Shutterstock)

A sea change

Blue Beach has helped build our understanding of how this happened. Studies describing its tetrapods and actinopterygians have showed the persistence of Devonian-style forms in the Carboniferous Period.

Whereas the abrupt end-Devonian decline of the placoderms, acanthodians and fishy sarcopterygians can be explained by a mass extinction, it now appears that multiple types of actinopterygians and tetrapods survived to be preserved at Blue Beach. This makes a big difference to the overall story: Devonian-style tetrapods and actinopterygians survive and contribute to the evolution of these groups into the Carboniferous Period.

But significant questions remain for paleontologists. One point of debate revolves around how actinopterygians diversified as the modern vertebrate world was born — whether they explored new ways of feeding or swimming first.

three lower jaw bones on the left, two reconstructions of prehistoric fish on the right
Comparing the jawbones of Sphyragnathus, Austelliscus and Tegeolepis.
(C. Wilson), CC BY

The Blue Beach fossil was actinopterygian, and we wondered what it could tell us about this issue. Comparison was difficult. Two actinopterygians with long jaws and large fangs were known from the preceding Devonian Period (Austelliscus ferox and Tegeolepis clarki), but the newly found jaw had more extreme curvature and the arrangement of its teeth. Its largest fangs are at the back of its jaw, but the largest fangs of Austelliscus and Tegeolepis are at the front.

These differences were significant enough that we created a new genus and species: Sphyragnathus tyche. And, in view of the debate on actinopterygian diversification, we made a prediction: that the differences in anatomy between Sphyragnathus and Devonian actinopterygians represented different adaptations for feeding.

Front fangs

To test this prediction, we compared Sphyragnathus, Austelliscus and Tegeolepis to living actinopterygians. In modern actinopterygians, the difference in anatomy reflects a difference in function: front-fangs capture prey with their front teeth and grip it with their back teeth, but back-fangs use their back teeth.

Since we couldn’t observe the fossil fish in action, we analyzed the stress their teeth would experience if we applied force. The back teeth of Sphyragnathus handled force with low stress, making them suited for a role in piercing prey, but the back teeth of Austelliscus and Tegeolepis turned low forces into significantly higher stress, making them best suited for gripping.

We concluded that Sphyragnathus was the earliest actinopterygian adapted for breaking down prey by piercing, which also matches the broader predictions of the feeding-first hypothesis.

Substantial work remains — only the jaw of Sphyragnathus is preserved, so the “locomotion-first” hypothesis was untested. But this represents the challenge and promise of paleontology: get enough tantalizing glimpses into the past and you can begin to unfold a history.

As for the actinopterygians, current research indicates that they first diversified in the Devonian Period and shifted into new roles when the modern vertebrate world was born.

The Conversation

Conrad Daniel Mackenzie Wilson receives funding from the Natural Sciences and Engineering Research Council of Canada, the Ontario Student Assistance Program, and the Society of Vertebrate Paleontology.

ref. A chance discovery of a 350 million-year-old fossil reveals a new type of ray-finned fish – https://theconversation.com/a-chance-discovery-of-a-350-million-year-old-fossil-reveals-a-new-type-of-ray-finned-fish-254246

Why queer-themed shows evoke a bittersweet nostalgia for missed childhood moments

Source: The Conversation – Global Perspectives – By Rena Bivens, Associate Professor of Communication and Media Studies, Carleton University

A scene from Heartstopper — Charlie (played by Joe Locke), left, is a gay teen boy who falls in love with classmate Nick (played by Kit Connor), right.

Imagine suddenly longing for a past you’ve only seen in a show filmed before you were born. Or, reverse that: Imagine wishing you could re-do your childhood while watching a brand new show like Heartstopper, set in the present day.

Heartstopper is a Netflix hit series, jam-packed with queer and trans teens finding love, accented by cute cartoon leaves fluttering across the screen.

Sounds adorable? Yes, but if you came out later in life, grew up in an unsupportive environment or never had a teen romance, the anemoia you feel may be intense.

If you’ve yet to hear the word anemoia, forgive yourself. Anemoia was only recently defined by The Dictionary of Obscure Sorrows as “nostalgia for a time you never experienced.” The growing obsession with what’s known as Y2K core — fashion, music and culture inspired by the 90s and early 2000s — by Gen Z is an example of this kind of intergenerational envy.

Unlike other forms of nostalgia, neuroscientist Felipe De Brigard tells us that anemoia “doesn’t need real memories.” De Brigard explores the darker side of these complex feelings. He says propaganda can misinform people about the past to elicit a longing for a time that may never have existed.

According to De Brigard, given the right material, we can create simulations of possible scenarios in our minds. We might imagine a different present or an alternative past.

Imagining what could have been

While watching Heartstopper‘s love story unfold in our living rooms, we feel happy for the fictional characters, but anger, grief and a dash of betrayal can creep in as well.

For many Heartstopper viewers, the series blends into memories from our real life. Watching queer and trans teens portrayed as ordinary people can feel like a breath of fresh air, especially if these scenes are inconsistent with our own adolescence. According to media studies professor Frederik Dhaenens, Heartstopper also uses cute esthetics that amplify these positive depictions while “soften[ing] the blow of negative experiences” faced by the characters.

a group of teens stand in a family photo style - they are in front of beach changing cabins
The season 3 cast of Heartstopper.
(Netflix)

Memories from our past start to flood through our minds as we watch. We may find ourselves wishing for the queer childhood we never had. If only I was born later, we might think. Viewers may imagine how their lives could have unfolded differently, if only they had better media representation or were surrounded by more liberal perspectives.

Enter queer anemoia: nostalgia for a do-over of an earlier stage of your life in a different time or place. While commonly expressed by queer and trans folks over 40, anyone who harbours some grief over their coming-out process or the lack of acceptance they had growing up may find themselves riding this emotional rollercoaster.

A moment of recognition

Queer anemoia is a moment of recognition. It is the contrast between our imagined teen love and — for many, but of course not all — the real past — lonely and isolated.

The sight of a thriving trans teen like Heartstopper’s Elle could elicit strong feelings for a viewer who transitioned later in life and missed their own girlhood.

Maybe the word trans wasn’t even accessible to help them make sense of their identity.

Thinking about the past is not unusual for queer and trans folks. With some sarcasm, you could call it a hobby. Hey, want to hang out tonight and subject our adolescence and coming-out stories “to the judgment of hindsight?” Media push this exercise further by helping us visualize what could have been.

‘I Kissed a Girl’

Another show described similarly to Heartstopper is the reality TV show I Kissed A Girl. The Guardian described it as “a celebratory, joyful love letter to queerness” and “the sweetest, most touching” show.

two women snuggle together on a couch, they are looking into each other's eyes
A scene from ‘I Kissed A Girl’ reunion show.
I Kissed A Girl

Among a surplus of straight couples in reality TV, I Kissed A Girl is one of only a handful of shows with queer cast members. But perhaps this is shifting. Sociologist Róisín Ryan-Flood and queer historian Amy Tooth Murphy argue that we are undergoing “one of the most dramatic transformations of gender and sexuality in social life in recent decades.”

By portraying lesbians as ordinary people with ordinary desires, I Kissed A Girl contributes to this transformation. Some viewers’ might find their own ideas about what is possible, desirable and even aspirational beginning to change.

Media can model these possibilities for us, which contributes to our identity formation. Feminist and queer theorists agree, arguing that our gender and sexual identities are collectively created, not self-made.

For example, gender studies professor Amira Lundy-Harris explains how when we encounter others in media — novels, film, television — they can help us recognize something about ourselves.

Therefore these mediated identities — these characters on TV — are not just ours. We co-create our identities with a variety of different forms of media, including social media and memoirs. We also do this with other people, including our families and friends. The cultural and political moment we are living in is also part of this collaborative identity-making process.

Late bloomers may feel more anemoia

Queer anemoia is a politically useful feeling. When we compare different cultural moments we may also recognize that we did not learn about our identity in isolation from the rest of the world. Feminist philosopher Sue Campbell has said our feelings require others to help us interpret and make sense of them. Through their characters and stories, media offer us an interpretive context for our feelings to emerge.

Some late bloomers — especially those left feeling confused or surprised by their sexual or gender identities — may blame themselves for going along with a mainstream, heteronormative or cisnormative cultural script without stopping to ask themselves who they really are. It may be hard, at first, to see that our identities are co-created.

A recently released film, Am I Ok? portrays a late bloomer, Lucy, who is 32 when she finally realizes she’s a lesbian. She’s frustrated and disappointed in herself as she tells her best friend, “I should have figured this out by now.”

Unfortunately, the film does not explore other reasons for her predicament — like compulsory heterosexuality — that are no fault of her own.

Close up of a sad white woman in her 30s with brown hair, tears streaming down her face and eyes closed.
Dakota Johnson stars in a film about discovering your sexuality later in life.
(Rotten Tomatoes)

Naming the ‘nostalgia’

British education professor Catherine Lee, who previously taught secondary school under the homophobic Section 28, wrote in The Conversation about how she was filled with regret as she watched the queer teachers in Heartstopper give their students the supportive environment she never could.

Even Heartstopper director Andy Newbery felt queer anemoia before working on the third season. He said:

“I’ve heard it many, many times since, especially from people sort of my age really, about how they wish they’d had a show like this when they were growing up.”

Naming queer anemoia gives us language for these complex, bittersweet feelings. In today’s political climate, cute portrayals of queer and trans love may not continue to grace our screens, but taking our feelings seriously and asking what they tell us about the role of media in our lives must never stop.

The Conversation

Rena Bivens 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. Why queer-themed shows evoke a bittersweet nostalgia for missed childhood moments – https://theconversation.com/why-queer-themed-shows-evoke-a-bittersweet-nostalgia-for-missed-childhood-moments-259341

The Competition Bureau wants more airline competition, but it won’t solve Canada’s aviation challenges

Source: The Conversation – Global Perspectives – By Geraint Harvey, DANCAP Private Equity Chair in Human Organization, Western University

A recent market study by the Competition Bureau is calling for more airline competition in Canada’s airline industry to reduce fares, increase service quality and provide better services to remote communities.

The study reiterates that Canada’s domestic air travel market is largely dominated by just two carriers, Air Canada and WestJet. Together, they account for between 56 per cent to 78 per cent of all domestic passenger traffic. This concentration limits passenger choice, and many Canadians feel airfares are high and quality of service is low as a consequence.

Increased competition has lowered air fares elsewhere, like in Europe, for example, where low-fares airlines dominate the continental market. However, there have been negative outcomes for consumers.

While the bureau positions competition as the solution to the many issues plaguing the industry, it overlooks how an increase in competition can fall short, particularly when it comes to transparency, service quality, labour conditions and regional connectivity.

Cost transparency not likely to improve

One of the Competition Bureau’s key criticisms of Canada’s airline industry is the lack of cost transparency when booking flights. Hidden fees and complex fare structures make it difficult for travellers to effectively make comparisons among airlines.

But it’s unreasonable to expect increased competition — when airlines seek to make their offering more attractive than their competitors — to lead to greater transparency in Canada. In fact, competition has been linked theoretically and empirically to dishonest practices.

Europe provides a cautionary example. Increased competition has not led to greater air fare transparency in Europe. Airlines like Ryanair, a low-fare airline and the continent’s largest airline by passengers carried, have been accused of hiding fees for passengers.

Service quality and workers

The bureau’s study also found that many Canadians are dissatisfied with the quality of service offered by domestic airlines. Yet increased competition is unlikely to raise service standards. As airlines compete to offer the lowest fares, they often look to reduce operating costs, typically at the expense of service quality.

Those who suffer the most from airlines minimizing costs are employees, since labour represents one of the few areas where airlines can cut back.

The morality and safety implications of introducing wage and employment insecurity to workers within high reliability organizations aside, reducing the quality of employment terms and conditions for workers in such an important industry is short-sighted.

Claims of a pilot shortage are contested, and making employment in Canadian aviation less attractive for a highly skilled and crucial occupational group like pilots is a strategic faux pas that could have long-term consequences for the industry’s stability.




Read more:
Potential Air Canada pilot strike: Key FAQs and why the anger at pilots is misplaced


Remote communities left behind

Canada’s unique geography means that many remote regions rely on airlines for goods and transport. Yet these areas are not effectively served by the commercial aviation industry. The bureau suggests greater competition could help, but that claim is questionable.

The reason existing airlines are not providing a greater number of flights between remote communities and larger airports is because these routes aren’t profitable. Rather than expanding service, a more competitive market could shrink route availability because airlines could abandon less profitable routes or refuse to compete on routes where a market leader emerges.

To its credit, the bureau offers several recommendations for northern and remote communities. But these communities are unlikely to benefit from competition alone. In fact, increased competition would likely mean airlines will focus on profitable routes and remove those that don’t yield high profits.

Europe’s airline industry is once again instructive. Eurocontrol, a pan-European organization dedicated to the success of commercial aviation in Europe, states that “domestic aviation in Europe has experienced a substantial and persistent decline over the past two decades,” including the demise of regional operators serving lower-density routes.

Where routes have been maintained — in Norway, for example — it’s as a consequence of public service obligations that guarantee essential routes are maintained through government support.

It’s because of public service obligations, not competition, that the Canadian government can serve remote communities. Without such safeguards, increased competition has the potential to do more harm than good.

Risks of relaxing foreign ownership

The bureau also recommended relaxing rules around foreign ownership within the Canadian airline industry so that a wholly foreign owned airline can compete domestically.

But not all airlines are equal. Some, like Qatar Airways, are backed by the government of their home state. Qatar Airways has purchased stakes in airlines in Asia Pacific and Africa.

Competition with airlines such as Qatar Airways is inherently unfair because of the huge financial support it receives. Allowing such state-backed carriers into the Canadian market could place domestic airlines at a significant competitive disadvantage. This could not only weaken Canadian airlines, but also be detrimental to the Canadian economy if domestic carriers are pushed out.

Competition may reduce fares, but it always comes at a cost. Canadians must be certain that lower fares are worth the cost.

The Conversation

Geraint Harvey 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. The Competition Bureau wants more airline competition, but it won’t solve Canada’s aviation challenges – https://theconversation.com/the-competition-bureau-wants-more-airline-competition-but-it-wont-solve-canadas-aviation-challenges-259498

Peut-on brûler toutes les réserves d’énergies fossiles et compenser en plantant des arbres ?

Source: The Conversation – Indonesia – By Alain Naef, Assistant Professor, Economics, ESSEC

Lorsque l’on parle d’atténuation du changement climatique, on pense souvent au fait de replanter des arbres, qui consomment du CO2, ou à des solutions techniques consistant à recapturer le gaz carbonique depuis l’atmosphère. Mais ces approches, si elles peuvent être intéressantes, sont irréalistes pour stocker le réchauffement, si on souhaite continuer à brûler des ressources fossiles jusqu’à épuisement.


Quand on prend l’avion, on nous offre souvent la possibilité de planter des arbres à l’autre bout de la planète pour compenser les émissions de notre vol. Un luxe qui permet aux quelques 2 à 4 % des habitants de la planète qui volent chaque année de réduire leur bilan carbone et soulager leur conscience. Mais que se passerait-il si on étendait ce luxe à toute notre économie ? Peut-on vraiment continuer à émettre du CO2 gaiement et espérer le compenser plus tard ? La question devient urgente alors que nous sommes actuellement au-dessus de 1,5 °C d’augmentation de température depuis l’ère industrielle.

Dans une nouvelle étude, nous montrons que compenser les émissions de CO2 coûte trop cher pour être une solution viable. Par exemple, si l’on souhaite capter directement le CO₂ dans l’air, le coût que cela représente est d’environ 1 000 € par tonne, selon les estimations des quelques projets existants, tels que le projet de Climeworks en Islande. La technologie fonctionne avec des ventilateurs géants qui aspirent directement le CO2 de l’air. Pour le mettre où ? Les Norvégiens ont débuté jeudi 12 juin l’installation d’une infrastructure de captage et de stockage du CO₂ sous le plancher océanique, opération marketing à l’appui. Cela parait idéal pour continuer à polluer, tout en n’affectant pas la planète.


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Les estimations dans notre étude montrent que les 200 plus grandes entreprises pétrolières produiraient environ 673 gigatonnes de CO2 en brûlant leurs réserves de pétrole, gaz et charbon. Ces réserves sont inscrites dans leurs rapports annuels et il s’agit de la base de leur valorisation financière. Leurs actionnaires savent que c’est grâce à ces réserves qu’ils ont une certaine capitalisation boursière plutôt qu’une autre.

La capture et le stockage du carbone ? Hors de prix

Le problème, comme le montre notre étude, est que pour compenser les réserves actuelles des entreprises de gaz, pétrole et charbon, cela coûterait environ 673 700 milliards d’euros, soit presque sept fois le PIB mondial. Cela implique que si l’on souhaite continuer à polluer jusqu’à avoir épuisé les réserves d’énergies fossiles, nous devrions payer l’équivalent de sept ans de toute la production mondiale. À ce prix là, autant ne pas polluer.

À l’échelle des entreprises fossiles, le calcul ne serait pas rentable non plus. Pour Total Énergie, qui possède des réserves d’environ 4,25 gigatonnes de CO2 en réserves, c’est trop cher. À 1 000 € la tonne, Total devrait payer environ 4 253 milliards d’euros. C’est presque 34 fois sa valeur boursière, qui s’élève aujourd’hui à environ 126 milliards d’euros.

Dans notre étude, nous appelons cela la valeur environnementale nette, c’est-à-dire la valeur d’une entreprise fossile une fois le CO2 contenu dans ses réserves compensées. Dès que le prix pour compenser une tonne de CO2 dépasse les 150 dollars, la valeur environnementale nette des 200 plus grandes entreprises du secteur des énergies fossiles devient négative. En d’autres termes, si les entreprises fossiles devaient compenser leurs émissions, elles mettraient toutes la clé sous la porte. Heureusement pour elles, aucune législation en ce sens ne s’applique pour le moment. Certaines l’ont compris et ont commencé à investir dans des technologies génératrices d’énergie verte.

Planter des arbres ? Il faudrait recouvrir au moins toute l’Amérique du Nord !

Il existe cependant des solutions plus abordables, comme celle qu’on nous propose à bord des avions notamment : planter des arbres. Selon une étude de l’OCDE, le prix est minime puisqu’il s’élève à environ 16 dollars la tonne. Ce coût infime s’entend sans le prix du terrain : planter des arbres à Manhattan est probablement plus cher.

Les arbres sont en effet généralement composés à moitié de carbone. Pour de nombreuses espèces d’arbres, cette séquestration est la plus efficace pendant les vingt premières années de croissance. Mais pour que la plantation d’arbres capture du carbone, il faut bien sûr éviter qu’ils soient ensuite coupés ou brûlés, ce qui relâcherait à nouveau tout le carbone séquestré. Et il faut éviter de les planter dans un lieu où cela pourrait perturber l’écosystème déjà en place… Pouvons-nous donc sauver la planète en plantant des arbres ?

Dans notre étude, nous avons utilisé les moyennes de captures de carbone par les arbres, en fonction des régions où ils seraient plantés, d’ici à 2050. Si l’on voulait compenser les émissions potentielles de l’ensemble des réserves de gaz, pétrole et charbon, il faudrait planter des arbres sur une très grande surface, qui dépend des régions du monde (certaines étant plus propices que d’autres à la séquestration du carbone). Une de nos estimations est qu’il faudrait couvrir environ 27 millions de kilomètres carrés, soit l’entièreté de l’Amérique du Nord et centrale, ainsi qu’une partie de l’Amérique du Sud. Cela impliquerait de remplacer toutes les constructions, les routes, les lacs, et de planter des arbres partout, et sans compter ceux qui poussent déjà.

Bien que l’idée est absurde, la carte ci-dessous permet de se représenter la surface que cela représente. En d’autres termes, même si la plantation d’arbres peut être une bonne forme de capture de carbone, la solution n’est pas viable si on regarde les étendues des réserves de gaz, pétrole et charbon actuellement en possession des entreprises fossiles.

Et si on pousse cette idée encore plus loin, en voulant planter suffisamment d’arbres pour compenser le CO2 déjà émis au cours de l’histoire, il faudrait cette fois transformer en forêt géante non seulement l’Amérique du Nord, mais aussi l’Europe et presque toute l’Afrique, de la côte méditerranéenne jusqu’au Zimbabwe.

Des solutions utiles, mais invraisemblables sans changements profonds de nos émissions

On voit donc que la compensation carbone n’est pas une baguette magique. Si l’on veut le faire avec de la technologie, le prix actuel est bien trop élevé. De plus, il faut transporter le carbone de son lien d’émission vers le lien de stockage, par exemple de la France vers la Norvège, ce qui génère également des émissions. Les solutions naturelles sont bien sûr à favoriser, telles que la plantation d’arbres.

Mais là aussi la place manque. La solution ? Arrêter les émissions, bien sûr. Et pour les secteurs difficiles à décarboner, comme la métallurgie, l’industrie chimique ou l’agriculture, il faut d’abord diminuer les activités polluantes, et compenser pour celles qui demeurent nécessaires. La compensation carbone doit donc rester un joker à utiliser en dernier recours, et non la solution par défaut, pour réduire les émissions humaines dans un monde à +1,5 C° et qui continue de se réchauffer.

The Conversation

Alain Naef a reçu des financements de l’Agence Nationale de la Recherche (ANR).

ref. Peut-on brûler toutes les réserves d’énergies fossiles et compenser en plantant des arbres ? – https://theconversation.com/peut-on-bruler-toutes-les-reserves-denergies-fossiles-et-compenser-en-plantant-des-arbres-259330

Éclairer la ville ou protéger la biodiversité : faux dilemme

Source: The Conversation – Indonesia – By Léa Tardieu, Chercheuse en économie de l’environnement, Inrae

La pollution lumineuse affecte les écosystèmes et la santé humaine, comme le montre cette image satellitaire de l’agglomération de Montpellier de nuit. Image acquise le 26 août 2020 par Jilin-1 de CGsatellite et distribuée par La TeleScop, Fourni par l’auteur

La pollution lumineuse a de nombreux effets délétères. Elle menace la biodiversité, la santé humaine et même les observations astronomiques. Pour être efficaces, les mesures mises en place doivent toutefois dépasser l’opposition binaire entre éclairage ou extinction des feux. L’enjeu est de s’adapter à chaque situation locale.


La pollution lumineuse a considérablement augmenté ces dernières années (d’au moins 49 % entre 1992 et 2017) et continue de croître à un rythme alarmant (7 à 10 % par an). Cette progression rapide est due à la multiplication des sources de lumière artificielle, née de l’expansion urbaine et des changements dans le spectre lumineux des éclairages (couleurs plus froides qui affectent davantage les insectes, par exemple). L’effet rebond du passage à la technologie LED, qui permet d’éclairer davantage pour le même coût, aggrave la situation en multipliant les points lumineux.

Or, la lumière artificielle nocturne a de nombreux effets néfastes, désormais bien démontrés par la communauté scientifique. Elle pèse sur la biodiversité, sur la santé humaine, sur la recherche en astronomie et même, indirectement, sur les émissions de gaz à effet de serre (GES) du fait de la consommation d’énergie accrue que représente l’éclairage.

Les discours autour de l’éclairage sont aujourd’hui réduits à une logique de « tout ou rien » selon que l’on cherche à privilégier les résidents ou la biodiversité. Dépasser cette binarité est tout l’enjeu de l’étude que nous avons publiée dans Nature Cities.

Celle-ci montre que des compromis entre biodiversité et société sont possibles, mais qu’aucune politique uniforme ne sera efficace. Seule une politique d’éclairage nocturne pensée au niveau local, pour chaque point d’éclairage, adaptée au contexte environnemental et social, permettra de concilier les besoins des uns et des autres. Ceux-ci sont parfois concomitants, et parfois antagonistes.

Les multiples ravages de la pollution lumineuse

En matière de biodiversité, tout d’abord, les éclairages nocturnes perturbent une large gamme de taxons (groupes d’espèces) nocturnes comme diurnes.

Ils masquent en effet les cycles naturels d’alternance jour-nuit. La nuit constitue un habitat pour les espèces nocturnes – et représente un temps de repos pour les espèces diurnes. La nuit représente en quelque sorte une face cachée trop souvent oubliée des politiques environnementales.


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Les effets de la pollution lumineuse sur la biodiversité ont pourtant été documentés à différents niveaux : à l’échelle individuelle (altérations de la physiologie, du comportement reproductif, alimentaire ou d’orientation), à l’échelle communautaire (impacts sur les interactions de compétition et de prédation), et même à l’échelle des écosystèmes. Elle affecte par exemple les processus de pollinisation, la diversité des plantes ou encore le fonctionnement des récifs coralliens tempérés et tropicaux.

Mais la pollution lumineuse représente aussi un enjeu de santé publique. Elle interfère avec les rythmes circadiens et la production de mélatonine chez l’humain, affectant ainsi les cycles de sommeil, l’éveil, les habitudes alimentaires et le métabolisme.

Elle interfère aussi avec les observations astronomiques en diminuant la visibilité des étoiles à l’œil nu. De 250 aujourd’hui en moyenne, elle pourrait chuter à seulement 100 d’ici dix-huit ans. Lorsqu’on ne peut admirer que 200 étoiles dans une ville comme Milan (Italie), un lieu non pollué en offre à nos yeux environ 2 000. Non seulement cette disparition détériore les observations scientifiques astronomiques, mais elle abîme aussi le lien culturel qui nous unit à la nuit.

La Voie lactée depuis l’observatoire de Paranal (désert d’Atacama, nord du Chili), où se trouve le Very Large Telescope (VLT). La lueur rouge à droite est due au halo de la ville d’Antofagasta, bien visible malgré sa distance, 100 kilomètres plus au nord.
Bruno Gilli/ESO, CC BY, CC BY-NC-SA

Enfin, l’éclairage associé à la pollution lumineuse est une source de consommation excessive d’énergie qui génère des émissions de CO2. La consommation énergétique liée à l’éclairage artificiel représente environ 2 900 térawattheures (TWh), soit 16,5 % de la production mondiale annuelle d’électricité et environ 5 % des émissions de CO2. Cela fait de ce secteur un enjeu incontournable pour tenir les objectifs de l’accord de Paris.

Restaurer les paysages nocturnes, un enjeu politique

La restauration des paysages nocturnes est pourtant possible, et cela, même dans les grandes villes. Cela requiert toutefois une volonté politique : il s’agit à la fois de sensibiliser à ces enjeux, mais aussi de prendre des décisions qui ne soient pas exclusivement dictées par le coût énergétique de l’éclairage et d’orienter l’urbanisme vers des systèmes d’éclairage plus durables.

Des politiques ambitieuses, aux niveaux mondial comme local, sont donc indispensables pour réduire et atténuer significativement la pollution lumineuse. Dans certains pays tels que la France, la législation nationale prescrit des mesures et des seuils d’ajustement de l’éclairage public pour éclairer plus directement les zones cibles et réduire le halo lumineux (arrêté du 27 décembre 2018 ou la nouvelle proposition de loi pour la préservation de l’environnement nocturne).

Certaines sources lumineuses artificielles peuvent avoir une température de couleur (indiquée en Kelvin, comme une température) qui se rapproche de celle de la lumière du jour.
Wikimedia, CC BY-SA

Toutefois, le respect des seuils réglementaires en termes de température de couleur, d’intensité lumineuse ou d’extinction, demeure à ce stade à la discrétion des élus locaux. La proposition de loi envisage de donner cette compétence à l’Office français de la biodiversité (OFB). Ce qui interroge, étant donné les fonctions dont il a déjà la charge, les entraves croissantes que ses agents rencontrent dans l’exercice de leur travail, et les récents appels à sa suppression.

Dépasser les arbitrages du « tout ou rien »

Certes, il ne peut être ignoré que le contexte urbain représente un défi pour les urbanistes. Ces derniers doivent, potentiellement, arbitrer entre les préférences des habitants et les besoins de la biodiversité.

« Potentiellement », car la majeure partie des mesures de réduction de la pollution lumineuse sont reçues positivement par la population. La résistance (ou la perception d’une résistance) au changement, liée à des raisons de sécurité, et cristallisée autour de l’extinction, constitue souvent le principal obstacle à leur mise en œuvre pour les élus locaux. Elle constitue aussi le principal argument pour faire machine arrière.

Notre étude publiée dans Nature Cities a été menée dans la métropole de Montpellier Méditerranée (3M), qui regroupe 31 communes, 507 526 habitants, et qui enregistre la plus forte croissance démographique de France (1,8 % par an).

La pollution lumineuse émise y est particulièrement problématique en raison de sa proximité avec le Parc national des Cévennes, l’un des six parcs français labellisés réserves internationales de ciel étoilé (Rice).

S’adapter localement aux besoins

Nous développons, dans l’étude, une analyse spatiale qui porte sur deux aspects :

  • les besoins des espèces en matière de réduction de la pollution lumineuse, d’une part,

  • et l’acceptabilité des habitants face aux changements d’éclairage de l’espace public, d’autre part.

Les besoins des espèces ont été évalués à partir d’images satellites multispectrales (c’est-à-dire, évalués dans plusieurs longueurs d’onde du spectre lumineux) à très haute résolution spatiale.

Ceci permet de délimiter deux dimensions de la pollution lumineuse :

  • le niveau d’émission lumineuse qu’émet chaque lampadaire vers le haut (la radiance),

  • et le nombre de points lumineux visibles, pour un observateur placé à 6 mètres de haut, compte tenu des objets présents dans l’espace (p.ex. : immeubles, arbres, etc.).

Nous prédisons ensuite, à partir de savoirs d’experts locaux et d’inventaires naturalistes, la connectivité du paysage (c’est-à-dire, la capacité des espèces à traverser le paysage pour passer d’un milieu habitable à un autre), avec et sans pollution lumineuse, pour six groupes d’espèces particulièrement sensibles à la pollution lumineuse ou d’intérêt pour la région. Il s’agissait ici : des insectes inféodés aux milieux humides et des Lampyridae, de deux groupes de chiroptères (chauves-souris), Rhinolophus et Myotis, d’un groupe d’espèces d’amphibiens Pelodytes, Pelobates et Epidalea calamita, et de l’engoulevent d’Europe, (qui appartient à une famille d’oiseaux nocturnes, ndlr).

Ceci a été mené en collaboration avec trois associations d’experts naturalistes : l’Office pour les insectes et leur environnement (Opie), la Ligue pour la protection des oiseaux (LPO) et le Groupe chiroptères du Languedoc-Roussillon.

Cela nous a permis, d’abord, de classer les points d’éclairage selon l’urgence à réduire la pollution lumineuse pour protéger la biodiversité. Les préférences citoyennes face à différentes mesures de réduction de la pollution lumineuse (réduction de l’intensité, extinction sur différentes périodes de la nuit, changement de couleur, etc.) ont ensuite été cartographiées à partir des résultats d’une vaste expérience de choix, c’est-à-dire une enquête durant laquelle les individus sont amenés à choisir, parmi plusieurs scénarios composites, leur option préférée. Celle-ci a été menée auprès de 1 148 habitants de la métropole.

Nous avons, enfin, croisé les besoins de la biodiversité et des citoyens pour identifier les actions sur l’éclairage public mutuellement bénéfiques et celles qui nécessitent des compromis. Les résultats ont été intégrés dans une application interactive, SustainLight, destinée à aider les décideurs et les citoyens à explorer les différentes situations possibles.

Adapter les stratégies à chaque territoire

Trois situations principales ressortent de notre analyse :

  • Certains quartiers comportant des enjeux forts pour la biodiversité peuvent bénéficier de réductions rapides de la pollution lumineuse avec le soutien des habitants.

  • Dans d’autres, situés en zones urbaines centrales avec des enjeux écologiques modérés, certaines mesures de réduction (par exemple le changement de couleur, la baisse de l’intensité, l’ajustement de la directivité/direction des luminaires pour qu’ils éclairent plus directement le sol) semblent être mieux reçues que des extinctions.

  • Des quartiers à forts enjeux écologiques, enfin, sont marqués par une forte résistance du public aux mesures d’extinction. Dans ce cas, il est possible d’avoir un éclairage plus respectueux de la biodiversité en adoptant les mesures mentionnées ci-dessus. Cela peut être accompagné d’actions de sensibilisation pour informer les résidents des multiples effets néfastes de la pollution lumineuse.

Nos travaux confirment que, pour être efficaces dans la préservation de la biodiversité contre la pollution lumineuse, les politiques d’éclairage durable doivent être socialement acceptées et tenir compte des besoins à la fois de la biodiversité et de la société.


Sarah Potin, Vincent Delbar et Julie Chaurand, de la start-up La Telescop, ont contribué à la rédaction de cet article.

The Conversation

Léa Tardieu est chercheuse à l’UMR TETIS et associée à l’UMR CIRED. Elle est membre du GDR 2202 Lumière & environnement nocturne (LUMEN) et de l’Observatoire de l’Environnement Nocturne du CNRS. Léa a reçu des financement de la Région Occitanie (projet Readynov Pollum).

Chloé Beaudet est membre du GDR 2202 Lumière & environnement nocturne (LUMEN) et de l’Observatoire de l’Environnement Nocturne du CNRS. Elle a reçu des financement de la Région Occitanie (projet Readynov Pollum).

Léa Mariton est membre du GDR 2202 Lumière & environnement nocturne (LUMEN) et de l’Observatoire de l’Environnement Nocturne du CNRS.

Maia David a reçu des financements de l’INRAE et AgroParisTech en tant que chercheuse à l’UMR Paris-Saclay Applied Economics (PSAE).

ref. Éclairer la ville ou protéger la biodiversité : faux dilemme – https://theconversation.com/eclairer-la-ville-ou-proteger-la-biodiversite-faux-dilemme-254904