How the Supreme Court might protect the Fed’s independence by using employment law in Trump v. Cook

Source: The Conversation – USA (2) – By Elizabeth C. Tippett, Associate Professor of Law, University of Oregon

Federal Reserve Board member Lisa Cook leaves the U.S. Supreme Court on Jan. 21, 2026, after oral arguments in Trump v. Cook. Kevin Dietsch/Getty Images

Most of the Trump administration’s legal disputes involving the firing of high-level officials deal with the scope of presidential power.

On Jan. 21, 2026, the U.S. Supreme Court heard oral arguments in one of the most significant cases of this kind to date. It was brought by Lisa Cook, a member of the Board of Governors of the Federal Reserve. The Fed serves as the U.S. central bank and sets monetary policy – including a key interest rate that influences borrowing costs.

President Joe Biden nominated Cook in 2022, and she was sworn in in May of that year.

President Donald Trump fired her on Aug. 25, 2025, but a lower court temporarily reinstated Cook to her role on Sept. 9.

Based on the oral arguments, a majority of the court’s justices seem inclined to protect the Fed’s independence by treating this case as an employment dispute. As a law professor who specializes in employment law and follows the Supreme Court, I can explain how that might play out.

Why Cook’s case matters

To be sure, this is not a typical employment law case because Cook has far more legal rights to her job than most American workers.

The vast majority of U.S. workers are employed “at-will” – meaning they can be fired for any reason and severed from their jobs with no advance notice. Cook’s position is covered by the Federal Reserve Act, which states that board members will be appointed by the president to 14-year terms and can be terminated by the president, but only for “cause.”

A federal judge presiding over the case in the District of Columbia also ruled that Cook was entitled to “due process” before her termination – meaning some notice, an explanation of the evidence against her and an opportunity to respond.

Cook’s lawsuit has outsized importance because the Fed’s board oversees the Federal Reserve.

As former Fed governors explained in a friend-of-the-court brief, “effective monetary policy requires a commitment to long-term goals,” and the lengthy 14-year terms of board members “are designed to insulate” them “from short-term political pressures.”

In another brief to the court, economists also expressed concern that a loss of independence could undermine the dollar’s status as a global reserve currency, which tends to protect the U.S. during global shocks.

These concerns appear to be shared by the Supreme Court. During oral argument, for example, Justice Brett Kavanaugh repeatedly pressed the government’s lawyer to concede – and articulate – the importance of Fed independence, grilling him as if he were a first-year law student.

In a 2009 law review article, Kavanaugh wrote that it “may be worthwhile to insulate” the Federal Reserve Board “from direct presidential oversight.”

A group of people meet at a conference table while the Federal Reserve insignia is projected onto a screen above their heads.
President Trump has sought to fire Lisa Cook, a member of the Federal Reserve’s Board of Governors, sitting to Fed chair Jerome Powell’s left.
Saul Loeb/AFP via Getty Images

What can count as cause for firing someone?

The Department of Justice announced in September 2025 that it was investigating Cook for allegedly making false statements on mortgage applications in 2021. Cook has denied those allegations.

As law professor Jed Shugarman has observed, it’s possible that the court will not rule on Cook’s case beyond allowing the lower court to proceed to a final decision. This would be the most cautious approach, since multiple justices pointed out that the facts about Cook’s alleged wrongdoing were not fully developed.

If the Supreme Court offers legal guidance to the lower court, the question of what counts as cause under the Federal Reserve Act is far from clear. The statute does not define the term, which lacks a clear meaning.

Modern American employment law starts from the baseline assumption of at-will status, where cause doesn’t matter because workers can be terminated for any reason. The rare employment contracts that promise termination for cause – like for executives, football coaches or workers who belong to unions – spell out what cause means in the contract.

When must an offense occur if an official is to be fired over it?

The reference to termination for cause appeared in the original 1913 Federal Reserve Act. But it was taken out in 1933 and then added back in 1935 after a series of lengthy Senate hearings on Fed independence. To decide what the cause provision means for Cook today, the justices may delve into what cause meant back in 1935.

As I note in “The Master-Servant Doctrine: How Old Legal Rules Haunt the Modern Workplace,” my 2025 book, standards for conduct justifying termination have changed over time.

According to an influential study by law professors Jane Manners and Lev Menand, the historical meaning of cause for federal agency heads was based on “inefficiency, neglect of duty, or malfeasance in office.”

The U.S. District Court applied this definition to Cook’s case, and inferred that cause only meant acts committed after she was appointed to the Fed’s Board of Governors. An act that predates the official’s Senate confirmation, the court explained, “has never been a basis for removal.”

At oral argument, the Supreme Court’s justices also focused on Congress’ purpose in enacting the firing-for-cause rule: to protect Fed independence from other branches of government.

This interpretation would, at minimum, protect Cook and other Fed governors from being fired due to policy differences with a president, such as Trump’s repeated complaints over the frequency and size of the Fed’s interest rate cuts.

An interpretation of this sort could be similar to antidiscrimination law or whistleblower law, which make it illegal for employers to fire someone for a fake or a flimsy reason to cover up their true motive – such as discrimination or retaliation.

What counts as due process?

As a matter of constitutional law, government workers who can only be terminated for cause have the right to receive “due process” from their employer prior to termination.

This process is known as a “Loudermill” hearing – named after the leading case on point – which generally consists of a presentation of the evidence against the worker and the opportunity to respond.

The lower court ruled that Cook had not been provided due process. At the Supreme Court, the government’s attorney tried to argue that Cook was given the equivalent of a Loudermill hearing, based on a Truth Social post that Trump made on Aug. 20, 2025, calling for her to resign. It was linked to apparent evidence in a news report about mortgage applications Cook filed in 2021.

The attorney argued that the five-day delay between Trump’s first post and Cook’s firing gave her an opportunity to respond.

Some Supreme Court justices expressed skepticism that social media posts can satisfy the Loudermill standard. Justice Amy Coney Barrett, for example, pointedly asked, “Why couldn’t those resources (used to litigate the case) have been put into a hearing?”

Yet I also got the sense that some justices, especially Kavanaugh, seemed reluctant to hang their hat on due process alone.

A hearing and an opportunity to respond – without a meaningful definition of “cause” – wouldn’t limit the reasons a member of the Fed could be terminated. It would only require a president to go through the motions of showing how he or she reached a foregone conclusion.

And, in my view, that is no substitute for independence.

The Conversation

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

ref. How the Supreme Court might protect the Fed’s independence by using employment law in Trump v. Cook – https://theconversation.com/how-the-supreme-court-might-protect-the-feds-independence-by-using-employment-law-in-trump-v-cook-274264

Pierre Poilievre: The most successful unsuccessful leader in Canadian politics?

Source: The Conversation – Canada – By Stewart Prest, Lecturer, Political Science, University of British Columbia

Nine months after falling definitively short in the 2025 federal election, Pierre Poilievre is facing a mandatory leadership review at this weekend’s Conservative Party convention.

By all accounts, he’s likely to cruise through the review, since he enjoys strong support among Conservative Party members.

That support extends to the broader voting coalition Poilievre has assembled, which continues to stand behind his leadership for the most part. Recent polling suggests that more than three quarters of Conservative voters view him as doing an “excellent” job.

The problem for Poilievre and the party, however, is that among those who did not vote Conservative, the view is starkly different. In that same recent Abacus poll, 62 per cent of non-Conservative voters reported he’s doing a “poor” or “very poor” job.

In a sense, Poilievre is the most successful unsuccessful leader in Canadian politics.

The Justin Trudeau problem

If you count by share of the vote, Poilievre led the party to its best showing in nearly 40 years. Brian Mulroney was the last leader of a Conservative party to crack 40 per cent of the vote share across the country. He also got the party to its best share of seats since Stephen Harper’s lone majority victory in 2011.

Poilievre managed to pull together, and even expand, the coalition of Conservative voters, appealing in particular to younger male voters, and was making inroads with labour voters — at least until Donald Trump showed up for his second term as American president.

Thanks largely due to Trump’s threats to make Canada a 51st state, Liberals performed even better in the election. Defying the odds, newly minted Prime Minister Mark Carney led the Liberals back from what seemed like certain defeat, assisted by the emergence of a far more more belligerent United States following Trump’s return.




Read more:
Canada’s Conservatives, with an assist from Donald Trump, are down — but they’re far from out


The Liberals bested the Conservatives in vote share and seat share, cementing Carney’s leadership of the country.

An even bigger problem for Poilievre is that his own approach to politics as opposition leader almost certainly influenced the Liberal rebound after Justin Trudeau stepped down — and when an electoral landslide seemed all but assured for the Conservatives.

Because Canadians considered Trudeau a problem, Poilievre’s take-no-prisoners approach paid significant dividends. The Conservatives led the Liberals by an increasingly comfortable margin throughout 2024. Language about the country being broken didn’t seem out of place to those tired of the status quo.

The Donald Trump impact

As soon as Trump made himself the problem, however, most Canadians looked for a much more fulsome response than Poilievre was able to offer. Rather than a leader focused on criticizing Canada, the majority of Canadians above all wanted one who promised to stand up against the American threat.

Similarities between Poilievre and Trump — sometimes rhetorical, other times substantive, and sometimes both — deepened the suspicion.

This divisiveness has continued to plague the party in the months since the 2025 election. One Conservative MP has decided to resign and two others have actually crossed the floor to join the Liberals, bringing the governing party within a hair’s breadth of a majority.

Nova Scotia MP Chris d’Entremont cited Poilievre’s leadership style specifically in explaining his decision to become a Liberal, suggesting the Conservative leader was too negative at a time when the country needed solutions-oriented politics.

This remains the quandary for the Conservative leader and the party: everything Poilievre does to secure the support of the more populist wing of the conservative movement in Canada tends to alienate the rest of the country, while any move to the centre risks condemnation from those further to the right.

Poilievre has won over core Conservatives and alienated the rest of the country, including that crucial share of voters necessary to push the Conservatives over the top.

Repelling more than he attracts

There is, to be sure, a path to victory still available to the Conservatives. A resurgent NDP, or some other wobble in Liberal fortunes, could be enough to put the Conservatives over the top next federal election.

They cannot count on such luck, however. Faced with the generational event that is the second Trump presidency, many Canadians are viewing the current Canada-U.S. tensions as an “us/them” existential battle, with other issues pushed into the background.

This week’s premier’s meeting in New Brunswick, for example, focused heavily on national unity. So too did Carney’s meeting with premiers in Ottawa.

This seems likely to persist so long as the U.S. poses a threat to Canadian security and prosperity. And as long as Poilievre presents himself as being sympathetic to Trump’s populist project, Canadians not already in the Conservative column will look to keep him out of the Prime Minister’s Office.

The most likely result, then, of this weekend’s review is a strong endorsement of Poilievre’s leadership and a continuation of the status quo: a country that has come together on a question of existential importance, but an opposition leader who divides, repelling more than he attracts.

The Conversation

Stewart Prest 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. Pierre Poilievre: The most successful unsuccessful leader in Canadian politics? – https://theconversation.com/pierre-poilievre-the-most-successful-unsuccessful-leader-in-canadian-politics-274358

With Iran weakened, Trump’s end goal may now be regime change. It’s an incredibly risky gamble

Source: The Conversation – Global Perspectives – By Amin Saikal, Emeritus Professor of Middle Eastern Studies, Australian National University; The University of Western Australia; Victoria University

The United States and the Islamic Republic of Iran are once again on the brink of a major confrontation. This would have terrible ramifications for both countries, the region and the world.

All signs point in this direction, but the two sides also have an off-ramp: the possibility of reaching an agreement on Iran’s nuclear program and other disputed issues.

The Iranian regime has never been so besieged both internally and externally. It has just faced yet another widespread protest movement demanding the government’s ouster, while dealing with the threat of military action by the US, supported by its ally, Israel.

Even so, the regime remains resilient and defiant. It brutally crushed the recent protests at the cost of thousands of lives and mass arrests and has warned the US of an all-out war if it attacks.

At the same time, it has signalled a willingness to reach a deal with the US over its nuclear program to avoid such an outcome.

So, what happens next, and can war be avoided?

A regime in survival mode

The regime’s tenacity is embedded in its unique theocratic nature, in which societal subordination and confrontation with outside enemies are the modus operandi.

Since its inception 47 years ago, the regime has learned how to ensure its longevity. This requires having a strong and defendable state, armed with all the necessary repressive instruments of state power, along with an ideology that mixes the concept of Shia Islamic martyrdom with fierce Iranian nationalism.

Given this, the regime has operated within a jihadi (combative) and ijtihadi (pragmatist) framework for its survival.

It has prepared for both war and making deals. This is not the first time Iran’s clerical leaders have been put in a tight corner by their own people and outside adversaries. They have always found a way to work through challenges and threats to their existence.

Still, the current challenge is bigger than any they’ve faced before. Over the past month, US President Donald Trump has vowed to punish the regime for its repression of the Iranian people, and now for its refusal to reach a deal on its nuclear program.

Some believe his ultimate goal, though, is to create the conditions for regime change.

Regime change not a given

Trump must know that regime change in Iran will not happen easily. Supreme Leader Ayatollah Ali Khamenei and his fellow clerics are ready to fight to the very end. They know that if the Islamic system they created goes down, everyone in the regime is most likely to perish with it.

The regime has built sufficient fanatical forces (namely, the Islamic Revolutionary Guard Corps and Basij paramilitary force) and advanced missiles and drones to defend itself. It also has the ability to block the Strait of Hormuz, though which 20% of the world’s oil and 25% of its liquefied natural gas flows every day.

The regime also has the backing of China, Russia and North Korea, which means any US assault could quickly escalate into a broader regional war.

Although Trump has not favoured regime change in the past, he now seems as if he’s not ruling it out. (His ally, Israeli Prime Minister Benjamin Netanyahu has long had this aim.)

But even though Trump now has a “massive armada” of ships and fighter jets in the region, the Iranian regime cannot be toppled by air and sea alone. And a ground invasion is not on Trump’s agenda, given the United States’ bitter experiences with ground offensives in Vietnam, Iraq and Afghanistan.

The regime could only crumble if a sizeable part of its security forces defected to the opposition. So far, they have remained quite loyal and solidly behind the leadership – as the brutal crackdown to the recent protests shows.

A possible destabilising future

Even if the regime were to crumble from within by some chance, what would come next?

Iran is a large and complex country, with an ethnically mixed population. While Persians form a slim majority of the population, the country has significant minority groups, such as the Kurds, Azeris, Arabs and Balochis. They all have a history of movements for secession and autonomy.

With the exception of two short periods of experimenting with democracy in the early and mid-20th century, Iran has been governed by authoritarian rulers. In the event of a power vacuum, it remains prone to chaos and disintegration.

It is doubtful that Reza Pahlavi, the son of the last shah of Iran, Mohammad Reza Pahlavi, who ruled from 1941–79, will command sufficient public support and organisational strength to ensure a smooth transition to democracy. He has lived most of his life in exile in the US and has been closely identified with Israeli and American interests.

Netanyahu would be pleased to see a disintegrated Iran, as he has always wanted to prevent the formation of a united Muslim front against Israel. But the fall-out from a destabilised Iran would be problematic for the region.

These considerations are probably weighing on Trump’s mind, delaying his promise to the Iranian protesters that “help is on its way”.

Diplomacy is the better way forward. The time has come for the Iranian and American leadership to compromise and resurrect their July 2015 nuclear deal, from which Trump withdrew in 2018.

This should be urgently followed by Iran’s clerical rulers opening their iron fist and allowing the Iranian people to determine their future and that of their country within a democratic framework.

Otherwise, the volatility that has long dominated this oil-rich country, where between 30–40% of the population lives in poverty, will eventually devour the regime.

The Conversation

Amin Saikal 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. With Iran weakened, Trump’s end goal may now be regime change. It’s an incredibly risky gamble – https://theconversation.com/with-iran-weakened-trumps-end-goal-may-now-be-regime-change-its-an-incredibly-risky-gamble-274626

Death in Minneapolis and the battle for truth in Trump’s America

Source: The Conversation – UK – By Jonathan Este, Senior International Affairs Editor, Associate Editor, The Conversation

This article was first published in The Conversation UK’s World Affairs Briefing email. Sign up to receive weekly analysis of the latest developments in international relations, direct to your inbox.


The US government’s reaction to the killing of Alex Pretti last weekend – and of Renée Good a fortnight earlier – was a grim reminder of George Orwell’s dystopian masterpiece Nineteen Eighty-Four, in which: “The Party told you to reject the evidence of your eyes and ears. It was their final, most essential command.”

In similar fashion, senior members of the Trump administration asked the American people to reject freely available video evidence of the two killings. They claimed that Pretti, a nurse at a local veterans’ hospital, was a “domestic terrorist”, that he was “brandishing a handgun”, and was “an assassin” who “tried to murder federal agents”. Good, a mother of three, supposedly “viciously ran over the ICE officer” who then put three bullets in her head.

Given that video evidence flatly contradicts those statements, this could yet prove a serious overreach on the part of Donald Trump and his lieutenants. Already border patrol commander Greg Bovino, who was in charge of ICE operations in Minneapolis, has been removed. And there’s speculation that Kristi Noem, US secretary of homeland security, is under serious pressure.

How BBC Verify analysed available video footage of Alex Pretti’s death.

One of the more objectionable claims from some of the people looking to blame the victims, writes Andrew Gawthorpe, was the claim made by several Trump officials – and the president himself – that by carrying a gun, Pretti had been asking for trouble.

As you might expect, this drew a sharp reaction from both the National Rifle Association and the Gun Owners of America. These two organisations, who are among Trump’s staunchest backers, reminded the administration of the second amendment right to bear arms, even to a protest – something which also brings in the first amendment right to free expression.

Gawthorpe, an expert in US history and politics at Leiden University, points to the dramatic irony at play here. The express intention of the second amendment was to allow American citizens to arm themselves against a tyrannical government. He concludes: “While some gun rights advocates may have been willing to keep quiet while federal agents were trampling on the rights of migrants and brown-skinned citizens, the murder of Pretti is a bridge too far.”




Read more:
Shooting of Alex Pretti in Minneapolis has put America’s gun lobby at odds with the White House


Meanwhile Mark Shanahan, a professor of political engagement at the University of Surrey, addresses some important points raised by Pretti’s killing. What are federal agents doing on the streets of Minneapolis in the first place, what will the episode mean for Trump’s popularity, and what can be done to prevent further violence?

When it comes to the last question, he argues that the removal of one of the key ICE personnel from the city is a start. Proper congressional scrutiny of ICE’s funding, which is set to sharply increase again this year, would also appear appropriate.




Read more:
Why the shooting of Alex Pretti in Minneapolis is so significant – expert Q&A


George Lewis, a professor of American history at the University of Leicester, reminds us that Americans have fought back against authoritarianism before. From the 1930s to the 1970s, the House Un-American Activities Committee (Huac) terrorised liberal Americans in its bid to root out communism and (vaguely defined) “un-American” activities such as campaigning for civil rights.

However, a concerted campaign by liberal lawmakers including Jimmy Roosevelt inside Congress, as well as legions of well-organised activists, managed to consign Huac to history’s dustbin in 1975.




Read more:
Americans have fought back against authoritarianism at home before


Ukraine: diplomatic stalemate

We’re still waiting to hear whether Vladimir Putin plans to sign up to Donald Trump’s “Board of Peace”. But the signs aren’t all that good. The Ukrainian president, Volodymyr Zelensky, was making some positive noises earlier this week about the prospect of securing security guarantees from Washington. This followed the latest round of talks in Abu Dhabi – at which, for the first time, representatives of Russia, Ukraine and the US came together to talk about ways to end the war.

But almost as soon as Zelensky had revealed his optimism that a deal might be possible, American sources indicated that in return for US security guarantees, Ukraine would have to accept the loss of the parts of the Donbas region it still occupies. This is a non-starter, as Ukraine considers the territory strategically vital.

As Stefan Wolff points out, we’ve been here before. Zelensky can’t accept this condition – and even if he does, Putin won’t accept US guarantees. Trump, meanwhile, will more than likely blame the Ukrainian president for the lack of a deal.




Read more:
Ukraine: Zelensky upbeat on US deal – but Davos showed the US president to be an unreliable ally


After 12 months of Trump’s second term, the unreliability of the US as an ally for Europe and the rest of Nato is becoming ever more evident. The US president’s Board of Peace appears designed to undermine the United Nations, while his negative rhetoric about US military allies, including the UK, appeared calculated to cause maximum offence (even if Trump later walked back some of his more controversial statements).

David Dunn, a specialist in the US and international security at the University of Birmingham, believes that while Trump may see the world in terms of great power competition, the recent World Economic Forum in Davos, Switzerland revealed a growing determination on the part of “medium-sized powers” to face up to this new reality – and begin building a new system that does not rely on Washington to make the running.




Read more:
US foreign policy has taken a radical turn in Trump’s first year back in office


War in Iran?

After calling on the people of Iran to keep protesting a fortnight ago, promising that “help is on its way”, the US president has ordered a “beautiful armada” into the Gulf, from where it can put pressure on Iran. In fact, the deployment of the aircraft carrier USS Abraham Lincoln and its strike group appears designed to get the Islamic Republic to dismantle its nuclear programme.

But the likelihood of this developing into full-scale conflict between the US and Iran is very slim, writes Bamo Nouri. He thinks it doubtful that US action can easily dislodge the regime. Despite the widespread recent protests, the Islamic Republic remains firmly embedded and has spent decades preparing for a possible war with the US.

Nouri, a journalist and international relations expert at City St George’s, University of London, believes that any conflict between the US and Iran would almost certainly destabilise the entire Middle East – and would be highly likely to spread. It’s the last thing that America’s allies in the region want, he concludes.




Read more:
Why it would be a big mistake for the US to go to war with Iran



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The Conversation

ref. Death in Minneapolis and the battle for truth in Trump’s America – https://theconversation.com/death-in-minneapolis-and-the-battle-for-truth-in-trumps-america-274675

Why drug approval in Canada should not rely on foreign regulators

Source: The Conversation – Canada – By Joel Lexchin, Associate professor, Department of Family and Community Medicine, University of Toronto; York University, Canada; University of Sydney

Without much fanfare, Health Canada announced in the Canada Gazette Part 1 on Dec. 22, 2025 that it was beginning a 70-day consultation period on using the decisions of foreign drug regulators such as the U.S. Food and Drug Administration (FDA) and the European Medicines Agency (EMA) to approve new drugs in Canada.

If the proposal is approved, Health Canada will evaluate reports from the other regulators, and provided those reports are satisfactory and that the drugs met certain conditions (for example, the drug being considered by Health Canada has the same strength, dosage form, route of administration, medicinal ingredient and indications as the foreign drug), the new drug will be approved.

This announcement appears to be a continuation of the federal government’s Red Tape Review launched in July 2025. According to a report on this initiative, Health Canada’s rationale for this change is that “industry stakeholders have indicated that they face undue burden due to overlapping or unclear regulatory requirements, complex regulatory approvals, and onerous reporting and information demands” and have “raised concerns about the time it takes to get products to market.”

Health Canada states that “enhanced international regulatory alignment reduces burden for industry and can support increased health product submissions to Canada” and increase the number of new drugs available to Canadians.

These views reflected in the Red Tape Review align with those of the pharmaceutical industry. In its 2025 pre-budget submission to the federal government, Innovative Medicines Canada (IMC), the main pharma industry lobby group, said that “reliance on trusted foreign regulatory reviews where appropriate…will streamline drug approvals and enable Health Canada to be a global regulatory leader.”

Faster drug approvals would also mean a shorter timeline to revenue generation for drug companies.

Benefits need to be evaluated

On the surface, this sounds like a reasonable initiative; countries with strong regulatory systems can draw on each other’s strengths so that tasks are not unnecessarily duplicated. In Canada’s case, our resources and capacity are limited compared with those of other leading regulatory authorities like the FDA and the EMA.

But before Canada starts using decisions from other jurisdictions, there is a need to evaluate whether this new way of approving drugs is actually going to be beneficial.

Australia has been using such a system since 2018. One of the benefits touted by the Australian government was that new drugs would be submitted faster to the Therapeutic Goods Administration (TGA), the equivalent of Health Canada.

But comparing the gap in the timing of submissions to the FDA and the TGA since Australia began using foreign regulator decisions doesn’t provide any convincing evidence that this has actually happened.

My new study, currently under peer review, looks at the 29 drugs that have so far used the Australian system. Twenty-two of those drugs have been evaluated by one or more organizations that look at how much additional therapeutic value new drugs provide compared to existing therapies. Sixteen of the 22 offered only minor new gains and just two were a major benefit.

FDA standards and approval pathways

The U.S. approves more new drugs than Canada does. But a recent study that compared Canada and the U.S. found that many drugs available in the U.S., but not north of the border, already had existing alternatives that are therapeutically and chemically similar. The small number of drugs that were unique to the U.S. were not very clinically important.

Some industry observers think the standards that the FDA uses to approve new drugs have been declining over the past 15-20 years.

The FDA has increased its reliance on what are called expedited drug approval pathways in recent decades. These allow drugs onto the market with lower levels of evidence. Although they were initially designed for drugs that treat rare conditions or life-threatening illnesses that don’t have effective treatments, researchers have found that these expedited pathways are being increasingly used for drugs that may not be innovative.




Read more:
Controversial Alzheimer’s drug highlights concerns about Health Canada approval process


If Canada were already using foreign decisions, aducanumab (brand name Aduhelm) might have been put on the market in Canada as a treatment for Alzheimer’s disease. In the U.S., the FDA approved aducanumab despite a lack of evidence that it would benefit Alzheimer’s patients, and despite and the negative vote of 10 of the 11 members of the FDA’s advisory committee — the 11th member abstained — and the subsequent resignation of three of the committee members. The manufacturer eventually pulled Aduhelm from the U.S. market because almost no doctors were prescribing it.

Different regulatory cultures, different decisions

We also need to think about the consequences of the homogenization of drug approval standards. Homogenization ignores the development of different regulatory cultures in different jurisdictions that arise from networks of individuals who produce regulatory policy, determine testing standards and ultimately decide on market access for new drugs.

When presented with essentially the same evidence, the FDA and the EMA often make different decisions about oncology drugs. A 2020 study found frequent discordance between the FDA and the EMA. Another study compared the approval of 42 cancer drugs between 1995 and 2008 by the FDA and the EMA, and showed that in almost 50 per cent of cases, there was a discrepancy between EMA and FDA decisions.

So far, there is no evidence to back up the claim that using decisions made by foreign drug regulators will lead to faster access to newer and better drugs. Before Canada proceeds down this pathway, Health Canada needs to show that it will improve public health.

The Conversation

Between 2022-2025, Joel Lexchin received payments for writing a brief for a legal firm on the role of promotion in generating prescriptions for opioids, for being on a panel about pharmacare and for co-writing an article for a peer-reviewed medical journal on semaglutide. He is a member of the Board of the Canadian Health Coalition. He receives royalties from University of Toronto Press and James Lorimer & Co. Ltd. for books he has written. He has received funding from the Canadian Institutes of Health Research in the past.

ref. Why drug approval in Canada should not rely on foreign regulators – https://theconversation.com/why-drug-approval-in-canada-should-not-rely-on-foreign-regulators-273693

Filing taxes for someone else? Here’s how to do it safely

Source: The Conversation – Canada – By Celine Latulipe, Professor, Computer Science, University of Manitoba

Filing taxes every year is an important and necessary task in Canada. But for many, tax preparation and filing can be overwhelming. One reason is that tax forms can sometimes be hard to interpret, especially because most people only deal with them once a year.

Another factor is the shift to digital: tax forms are often delivered electronically; tax software has become the preferred method for tax preparation and filing; and the Canada Revenue Agency (CRA) prefers to send all tax information electronically through the CRA MyAccount.

With this digital system, it’s typically necessary to access tax forms and previous Notices of Assessment by logging in to your CRA MyAccount. This can be a barrier for those with less experience using computers and online accounts, such as some older adults.

Many people act as informal tax helpers by filing taxes for older parents, relatives or friends. In fact, half of Canadians filing taxes have someone else do their taxes for them. Of those, one in five reports getting help from a friend or family member acting as an informal tax helper.

This means about 10 per cent of tax filers in Canada rely on family or friends to file their taxes. The CRA has a Represent a Client program that allows informal tax helpers to log in to the CRA MyAccount of the person they are helping to access relevant tax forms. However, a study that I recently conducted with colleauges shows that this mechanism is under-utilized.

How informal tax helpers access CRA accounts

Getting help with taxes can take many forms: hiring an accountant, visiting a tax preparation company, getting help from a volunteer through the Canadian Volunteer Income Tax Program (CVITP) or delegating to an informal tax helper.

Tax accountants, tax preparers and CVITP volunteers have business IDs or Group IDs for accessing CRA MyAccounts of the clients they assist. Similarly, informal tax helpers can sign up with CRA’s Represent a Client program to get RepIDs, which are ID numbers provided by the CRA to people whose identity is verified by having their own CRA MyAccount.

As an example, having a RepID allows me to access my daughter’s CRA MyAccount to get her Notices of Assessments, download tax forms and use NetFile to file her taxes. I could ask my daughter to log in and download those items for me, but it is faster for me to do it, as I know what forms I’m looking for and where to find them.

Landing page contains a menu at the left with options: Overview, Profile, Authorization request, List of notices issued, Download options, etc. On the right is the heading 'Overview'. Text beneath explains how to access client information.
The Canada Revenue Agency’s ‘Represent a Client’ landing page.
(Canada Revenue Agency)

Having a RepID does not give access to everyone’s tax records. A link needs to be established between the helper’s RepID and the CRA MyAccount of the person they are assisting. This can be done by uploading a signed form from the taxpayer or by sending an authorization request through the CRA system, which the taxpayer must approve.

The risks of sharing login credentials

In our study, we investigated CRA delegation mechanisms. We conducted a semi-structured interview study with 19 participants, including older adults, formal tax volunteers and informal tax helpers, to understand the challenges and experiences of tax delegation.

We found that only one informal tax helper used a RepID. Most either did everything using paper forms provided by the person they are helping, or they accessed that person’s CRA MyAccount using that individual’s credentials to log in.

In some cases, informal tax helpers may actually be setting up the CRA MyAccounts for the people they are helping, which means they know the login credentials. This violates the terms of service of the CRA MyAccount — you are not supposed to share your password with anyone.




Read more:
Password sharing is common for older adults — but it can open the door to financial abuse


While informal tax helpers are providing a valuable and helpful service to their friends and families, using a person’s credentials to access their CRA MyAccounts is problematic.

When an informal tax helper knows someone else’s CRA login credentials, they could log in as that user, change the mailing address and banking deposit details, and then make bogus tax and benefit claims. In this case, the CRA has no way to tell that it is someone else logging in and taking actions on behalf of the taxpayer associated with the account.

However, if an informal tax helper uses a RepID to access someone’s CRA MyAccount, the CRA knows exactly who is doing what. They don’t allow informal tax helpers to change the mailing address or bank deposit information, which goes a long way to preventing tax fraud.

Make tax help safer with a CRA RepID

If someone is helping you file your taxes, ask them to get a CRA RepID. It’s a quick process for them, and then they can access tax forms in your CRA MyAccount safely. This way, the CRA will know when it is them signing in to your account versus you, and your helper will only be able to access the appropriate functions.

The interface for requesting access, on the 'select authorization level' step. Level 1 allows a representative to view client information, while Level 2 allows a representative to view information and perform actions on behalf of a client.
The Canada Revenue Agency’s Represent a Client web page. Two levels of access are available, and neither allows the editing of critical details like bank deposit information or client address. An expiry date can also be set so that access does not have to be granted indefinitely.
(Canada Revenue Agency)

Most informal tax helpers are honest, helpful people and they shouldn’t have to impersonate you to get your taxes done. Using the CRA’s Represent a Client system provides legitimacy to informal tax helpers and safety for those getting assistance.

With the tax deadline of April 30, 2026 approaching, if you plan to have someone assist you with tax filing, it’s a good time to check with them to make sure they use a RepID to access your CRA MyAccount. Doing this early can help avoid last-minute stress, ensure your tax return is filed accurately and give you confidence that your information is secure.

The Conversation

Celine Latulipe receives funding from NSERC.

ref. Filing taxes for someone else? Here’s how to do it safely – https://theconversation.com/filing-taxes-for-someone-else-heres-how-to-do-it-safely-271924

Winter changes more than the weather — it changes how we connect. Here’s how to stay socially engaged

Source: The Conversation – Canada – By Kiffer George Card, Assistant Professor in Health Sciences, Simon Fraser University

Throughout Earth’s history, life in temperate and polar zones has had to contend with the cold and darkness of winter. Across species, seasonal adaptation is the norm. Some animals hibernate, others migrate, and many reduce activity, conserve energy, and narrow their social and ecological range until conditions improve. These strategies evolved over millennia as reliable responses to predictable environmental stress.

Humans are no exception. Seasonal cycles have a deep impact on our psychology and well-being — after all, for most of our evolutionary and recorded history, winter has shaped how we live, work and relate to one another. For our ancestors, food was scarcer, travel more difficult and daily activity contracted due to shorter days. Social life often shifted indoors and inward, and organized around smaller groups, shared labour and mutual dependence.

While modern societies have reduced many of winter’s material hardships, the season continues to exert a powerful influence on human behaviour and well-being.

As a social ecologist interested in human wellness, my research focuses on how our natural and social environments shape our well-being and what we can do to improve our relationships with these environments to maximize our well-being.

In this work, I study the drivers of emotional responses, such as loneliness and eco-anxiety. This work has taught me how inseparably connected we are to each other and to our environments, and one of my key areas of interest is how our social and natural worlds are intertwined.

Understanding how well-being is affected by weather

One area of research that has fascinated me is how humans respond to the weather and day-night cycles of the places they live. For example, research has shown that colder temperatures, greater precipitaiton and shorter periods of sunshine are associated with outcomes such as greater tiredness, stress, loneliness, and poorer life satisfaction and self-rated health.

As such, it makes sense that we are more likely to have depressive symptoms or feel tired and lonely in the winter compared to the spring and summer. Perhaps most concerning, studies of suicide attempts, loneliness and their seasonality indicate that winter weather can contribute to each, suggesting that seasonal shifts in social connection may intensify vulnerability during these periods.

Taken together, I believe this body of work suggests that the most consequential pathway linking winter conditions to well-being may not be weather exposure itself, but its effects on social connection. After all, human beings are fundamentally social animals — we greatly rely on each other for our happiness, health and survival.

Fortunately, the effect of weather on our mood is small and people can overcome it through intentional efforts. Indeed, human beings are incredibly adaptive to their environments, meaning even in poor weather contexts we can find ways to meet our social needs.

Illustrating this, research comparing levels of social isolation across neighbourhoods during cold weather highlights differences in how some communities respond to cold weather, with those choosing more indoor time throughout the day experiencing greater social isolation.

Research also suggests that our personality traits shape how resilient we are to weather changes. Studies such as these underscore that our responses to cold weather can shape its effects on us. Environment is not destiny, if we know how to address it.

So what can we do during the cold dark winter months to stay connected, and therefore happy and healthy? The research consistently shows that staying socially engaged, even in small ways, protects mental health and promotes well-being.

Ways to get connected in the cold

While winter may reduce incidental social contact, connection can be maintained through deliberate routines and low-threshold forms of engagement, including:

• committing to a weekly or biweekly group activity, such as a book club, exercise class, faith-based group or hobby circle

• organizing small, recurring gatherings, such as rotating dinners, shared meals or weekend brunches

• scheduling regular phone or video check-ins with family or friends and treating them as fixed commitments

• integrating social contact into daily activities, such as walking, running errands, exercising or having coffee together

• using daylight strategically by planning brief outdoor meetups or spending time in naturally lit public spaces

• participating in year-round volunteer roles that provide regular contact and a sense of purpose

• enrolling in short-term courses or workshops that create repeated contact over several weeks

• connecting through shared projects, such as creative work, community caregiving or co-hosted events

• initiating contact with others who may also be withdrawing socially during winter

It’s not always easy, but it is worth it

Of course, such activities take time and energy and are not always the easiest to do. Snow-caked roads and reduced sunlight hours can pose real mobility challenges. So while we might want to connect, we are not always able to when we face such environmental barriers.

In fact, one of my favourite findings in the literature is that while people naturally feel inclined to seek out social affiliation in response to cold weather (something I believe to be a survival strategy we’ve inherited from our less technologically equipped ancestors), physical warmth acts psychologically as a satisfactory replacement — even if it lacks the long-term benefits of social connection.

In other words, the modern amenities of space heaters and cozy blankets make it easier for us to isolate — and many of us are happy to enjoy the warmth from these instead of the warmth offered by social connection.

However, knowing the central importance of social connection to well-being, it’s important to not fall trap to these creature comforts. There is not anything wrong with being alone from time to time, but winter is too long a season to spend alone safely.

Intentional effort

In short, we need to recognize that winter weather has a predictable effect on our well-being, and this effect calls for deliberate social adaptation. Human well-being has always depended on the ability to respond collectively to seasonal constraint, and the contemporary winter environment is no different, even if its risks are less visible.

The evidence reviewed above suggests that while the cold, darkness and reduced mobility can heighten vulnerability, their effects are shaped by how individuals and communities organize daily life, social routines and sources of connection. Comfort, convenience and withdrawal may offer short-term relief, but they do not substitute for the protective role of sustained social engagement.

Winter demands intention rather than retreat. By recognizing social connection as a seasonal health behaviour rather than a discretionary luxury, individuals and communities can better align modern living with enduring human needs, reducing risk and supporting well-being across the long months of cold and dark.

The Conversation

Kiffer George Card is president of the Mental Health and Climate Change Alliance and Social Health Canada and has received funding from the Social Sciences and Humanities Research Council, Health Research British Columbia, Canadian Red Cross, Public Health Agency of Canada, Government of British Columbia, and Canadian Institutes of Health Research for his work related to the social and natural environmental factors shaping wellbeing.

ref. Winter changes more than the weather — it changes how we connect. Here’s how to stay socially engaged – https://theconversation.com/winter-changes-more-than-the-weather-it-changes-how-we-connect-heres-how-to-stay-socially-engaged-273684

Small improvements in sleep, physical activity and diet are linked with a longer life

Source: The Conversation – UK – By Eef Hogervorst, Professor of Biological Psychology, Loughborough University

CandyRetriever/Shutterstock

We may not need to completely overhaul our lives to live healthier for longer, according to a large UK-based study. This is welcome news, particularly as many people will already have abandoned their New Year’s resolutions.

The recent study followed around 590,000 people in the UK, with an average age of 64, over an eight-year period. The researchers confirmed earlier findings that healthier lifestyles are associated with lower risk of disease, including dementia, and with living longer in good health and independence.

The authors reported that even very small changes were associated with such benefits. These included around five additional minutes of sleep per night, two extra minutes per day of moderate to vigorous physical activity, and modest improvements in diet. Together, these changes were associated with roughly one additional year of healthy life. “Healthy life” here refers to years lived without major illness or disability that limits daily functioning.

More substantial changes were linked to larger gains. Almost half an hour of extra sleep per night, combined with four additional minutes of exercise per day, which adds up to nearly half an hour of extra activity per week, along with further dietary improvements, was associated with up to four additional healthy years of life.

This matters because, although women live longer on average than men, those extra years are often spent in poorer health, with significant personal and economic costs. Women face a higher risk of dementia, stroke and heart disease at older ages, as well as conditions that lead to vision loss and bone fractures. These illnesses can reduce quality of life and threaten independence.




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Are you ageing well? Take the five-part quiz that could help change your future


Lifestyle change may also reduce the risk of early death. The same lifestyle factors examined in this cohort were analysed last year in a separate study, which focused on mortality (the risk of dying).

In that analysis, people who followed healthier lifestyle patterns over an eight-year period had a 10% lower risk of death in that period. The combination of 15 extra minutes of sleep per night, two additional minutes of moderate to vigorous physical activity per day and a healthy diet was linked to a modest reduction in the risk of dying. A much larger reduction of 64% was seen among people who slept between seven and eight hours per night, ate a healthy diet and engaged in between 42 and 103 additional minutes of moderate to vigorous physical activity per week. Importantly, this benefit was only seen when these behaviours occurred together. Diet alone had no measurable effect, for instance.

Strengths and limitations

One of the key strengths of these studies is that they show health benefits at very low thresholds of behaviour change. This reduces the likelihood that the results are driven only by people who are already healthier or more motivated, and makes the findings more applicable to older adults and those with limited capacity to change their routines.

Another strength is the use of objective measurements rather than self-reported data. Physical activity and sleep were measured using wearable devices, rather than relying on participants to estimate their own behaviour. Self-reporting can be unreliable, particularly for people with memory problems, such as those in the early stages of dementia.

However, there are important limitations. The objective measurements were only collected for three to seven days, which may not reflect people’s long-term habits. From personal experience, wearing activity trackers can lead people to exercise more while they are being monitored, but these changes are often short-lived.

In addition, wrist-worn accelerometers estimate sleep and activity based on movement. During deep sleep, people move very little, but lack of movement does not always mean someone is asleep. These devices may therefore not fully capture true sleep patterns or physical activity levels. Other methods, such as thigh-mounted sensors or mattress-based sensors that detect movement during sleep, may provide more accurate assessments.

Despite these issues, objective measurements are generally more reliable than self-report. Still, because behaviour was only measured once, it is unclear whether actual changes in behaviour over time influenced health outcomes. It is also not clear whether the recorded activity reflected leisure-time exercise or physical activity at work, which can have different effects on health.

Dietary information presents another challenge. Diet was self-reported and collected three to nine years before collection of sleep and activity data. Diets often change over time, particularly after diagnoses such as cardiovascular disease, where people may be advised to reduce their cholesterol intake, or in conditions such as dementia, where people may forget to eat. As a result, it is difficult to know whether diet influenced disease risk, or whether emerging disease altered diet, eventually contributing to poor health and earlier death.




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There are also broader social factors to consider. Healthy behaviours tend to cluster together and are strongly linked to education and financial security. For example, smoking and having overweight and obesity are closely associated with deprivation and poverty.

Participants in the UK Biobank, a large long-term health research project that collects genetic, lifestyle and health data from hundreds of thousands of UK adults, are generally healthier than the average UK population.

Health research often attracts people who are healthier, better educated and more financially secure. This may reflect both interest in research and having the time and resources to take part in such studies.

Wealth also shapes exposure to risk. People with higher incomes are less likely to live in areas with high levels of pollution and are more likely to have control over their working conditions and finances. Financial stress can affect sleep quality, leading to fatigue and reducing the likelihood of exercising, shopping for fresh food, or preparing healthy meals. Over a lifetime, these factors contribute to poorer health and earlier death.

Although researchers attempted to account for these influences using statistical methods, these are deeply interconnected and difficult to separate. The widening health-wealth gap, with many people now living in severe poverty, highlights the limits of personal responsibility. These structural issues require action from policymakers, rather than placing the burden solely on people who may have very little control over the conditions that shape their health.

The Conversation

Eef Hogervorst has received funding from several governmental and charity foundations for her research into lifestyle and health including currently the ISPF and Alzheimer’s Research UK. She is affiliated with Loughborough university and has recently acted as dementia expert for NICE and the BBC. In the past she has acted as consultant on diet and dementia risk for Proctor

ref. Small improvements in sleep, physical activity and diet are linked with a longer life – https://theconversation.com/small-improvements-in-sleep-physical-activity-and-diet-are-linked-with-a-longer-life-273502

Why hospitality skills can help all businesses adapt to the AI revolution

Source: The Conversation – UK – By Alisha Ali, Associate Professor, Department of Service Sector Management, Sheffield Hallam University

Drazen Zigic/Shutterstock

The future of work is being rewritten by artificial intelligence (AI) – but technology competence alone will not be enough to empower the workforce of the future. While AI has massive potential to improve efficiency, accuracy and productivity in the workplace, it’s less clear how it will evolve to foster the person-centred concerns that all businesses face.

The human-centred skills found in the hospitality sector (empathy, creativity, adaptability, kindness, resilience and cultural intelligence) have been shown to be strategic assets in AI deployment in the workplace – things like chatbots or virtual assistants. They also remain the hardest skills to replicate in and by AI.

These qualities are not just soft skills – they should be at the heart of all customer service businesses. They enable employees to turn routine interactions into memorable experiences through emotional connection and the anticipation of customers’ needs. For now at least, AI is ill-equipped to manage this.

These hospitality skills matter for all businesses – not just those in the sector. In a world of evolving AI, they can help organisations ensure that the human touch is not lost. And investing in these skills can also drive profitability.

The UK hospitality sector leads the Social Productivity Index, a metric that measures the broader social value of industries beyond just how much revenue they make. Hospitality is the third-largest employer in the UK and the top employer of under-25s, part-time workers and minority groups. It also contributes £93 billion to the UK economy annually, accounting for 3% of GDP.

As such, investing in hospitality skills is critical to driving economic growth and building more resilient, people-centred workplaces. These skills are essential for things like creating a welcoming environment or navigating complex and changing business demands. There is a need for all businesses to prioritise these skills alongside their use of AI.

ai chatbot conversation on a phone screen
Efficient… but impersonal.
Tero Vesalainen/Shutterstock

By 2030, industries such as banking, healthcare and retail are expected to rely heavily on agentic AI (those systems that can solve complex problems in real time) to interact with customers. These industries lean heavily on efficiency, compliance and product knowledge – which are important – but they leave little room for genuine emotional engagement.

Many businesses are using chatbots and virtual concierges to resolve customers’ problems. Hospitality skills can help to determine which customer concerns can be dealt with by AI and which need to have the human touch. Similarly, AI can manage staff and rotas, but it cannot judge uncertainty or consider the impact of decisions on staff.

Hospitality comes into its own in terms of personalisation and cultural sensitivity. These skills are not just add-ons; rather they are the glue that holds great customer experiences together. Multilingual greetings, tailoring menus to cultural norms, spotting unspoken needs and other small touches all build loyalty.

Good hospitality professionals do not just serve, they anticipate, adapt and make people feel seen. Emotional intelligence and emotional labour are embedded into hospitality roles, with staff trained to manage emotions and respond with empathy.

The ‘what’ and the ‘why’ of business

In an era where technology handles the “what”, hospitality skills can deliver the “why” – that is, the meaning behind the interaction. And when transferred to sectors that also rely heavily on these strengths, such as healthcare, hospitality skills can provide great opportunities for career change or progression.

We suggest three ways organisations can embrace hospitality skills alongside AI to future-proof their talent pool.

First, staff training should be designed to combine both AI knowledge and the deep connectivity of hospitality skills. This training should encompass how businesses expect staff to engage with AI, as well as how hospitality skills can be fused to support and enhance their customers’ experience.

While AI can process data and do transactions, it cannot truly care, comfort or create trust. These are crucial measures in ensuring that the human element does not fade into the background.

Second, by investing in hospitality skills, businesses can concentrate more effectively on the customer journey and improve the efficiency of their service. For example, while AI can provide prompts on what to say, it cannot offer genuine comfort to a dissatisfied customer. Hospitality skills are essential to deliver those messages effectively and with care.

These skills help businesses to understand customer management, flow and touchpoints (points of interaction). This in turn strengthens the connection between AI and the customer experience as they interact to deliver a warm welcome.

Third, in developing AI for business use, hospitality skills will become core to the training process in order to improve the customer experience. This kind of hospitality training can transform business services from being standardised and short-termist to those that focus on building a lasting relationship with the customer.

For example, using banking apps, customers receive automatic suggestions on loans, mortgage updates or new accounts. But it is the staff’s hospitality skills that ensure these recommendations are presented with warmth and a genuine understanding of customers’ needs. This delivers experiences using AI but also conveys personalised customer service.

Businesses that engage with hospitality skills will not only navigate the AI revolution, but lead it. By combining AI-driven efficiency with the kind of skills that encourage genuine human connection, they can deliver streamlined services while making customers feel valued. In other words, technology can enhance, not replace, the human touch.

The Conversation

Alisha Ali is affiliated with the Council for Hospitality Management Education (CHME).

Lisa Wyld is affiliated with the Council for Hospitality Management Education (CHME).

Maria Gebbels is affiliated with the Council for Hospitality Management Education (CHME).

ref. Why hospitality skills can help all businesses adapt to the AI revolution – https://theconversation.com/why-hospitality-skills-can-help-all-businesses-adapt-to-the-ai-revolution-272541

How to cut harmful emissions from ditches and canals – new research

Source: The Conversation – UK – By Teresa Silverthorn, Postdoctoral Research Associate, University of Liverpool

Thijs de Graaf/Shutterstock

Ditches and canals are the underdog of the freshwater world. These human-made waterways are often forgotten, devalued and perceived negatively – think “dull as ditchwater”. But these unsung heroes have a hidden potential for climate change mitigation, if they’re managed correctly.

We know that ditches and canals have a large global extent, covering at least 5.3 million hectares — about 22% of the UK’s total land area. However, no one has yet mapped all global ditch and canal networks robustly, so it’s potentially more.

These waterways are also hotspots of greenhouse gas emissions, which contribute to climate change. We have previously calculated that ditches emit 333 teragrams of carbon dioxide equivalents (a common unit to express the climate impact of all greenhouse gases), which is nearly comparable to the UK’s total greenhouse gas emissions in 2023.

Ditches often contain stagnant waters and are commonly found running through farmland or cities, where they receive high amounts of nutrients from fertilisers, manure and stormwater run-off. This creates the low-oxygen, high-nutrient conditions that are ideal for the production of potent greenhouse gases methane and nitrous oxide – both of which warm the atmosphere considerably more than CO₂.




Read more:
Ditches and canals are a big, yet overlooked, source of greenhouse gas emissions – new study


However, ditches and their surrounding landscape can be managed (by farmers and landowners, for example) in ways that reduce nutrient inputs and therefore lower their greenhouse gas emissions. This makes them an untapped solution for reducing the effects of climate change.

Many nature restoration solutions focus on storing atmospheric carbon – by planting trees or mangroves, for example. But there are also immediate wins to be made simply by reducing greenhouse gas emissions. The importance of methane reduction has now been recognised by more than 160 countries, all of which signed the global methane pledge to cut human-caused methane emissions by at least 30% from 2020 levels by the end of the decade.

Our new study outlines the steps needed to reduce emissions from global ditches and canals. First, we need to better understand these systems by mapping their global extent. We also need to collect more measurements of greenhouse gas emissions from underrepresented regions like South America and Africa. Emissions from irrigation ditches in these understudied places could be large.

We also need to improve our understanding of how the potent greenhouse gas methane escapes the sediments in bubbles. This involves using sensors that monitor methane concentrations continuously, in order to capture “hot moments” when weather or human activity (such as fertiliser use on farmland) cause sudden pulses of emissions.

All of these strategies will improve estimates of global greenhouse gas emissions from ditches. From that new baseline, any progress in reducing emissions can be more accurately measured.

New directions for ditches

There are several ways to reduce greenhouse gas emissions from ditches and canals. These include reducing fertiliser application rates on farmland, excluding livestock from areas beside ditches to reduce the amount of manure that ends up in waterways (which has already been shown to be effective for ponds), and managing pollution sources like wastewater treatment plants.

In the Netherlands, researchers have tested the effects of dredging agricultural ditches to remove the nutrient- and organic matter-rich sediments that release greenhouse gases.

They found that dredging resulted in a 35% decline in ditch emissions after one year. However, this method isn’t perfect, as the emissions from the removed sediments still need to be accounted for at a later stage, and dredging disturbs aquatic habitats and organisms.

Planting vegetation alongside ditches helps intercept nutrients and sediments before they reach the ditch. This vegetation also provides shading, which reduces water temperature and rates of greenhouse gas emissions. A study across Denmark, Great Britain and Sweden found that riverside vegetation helped to considerably reduce nutrient inputs to rivers and streams, and improved habitats for stream organisms like bugs and frogs.

Introducing floating vegetation can also trap methane and create the conditions for its removal before it is released into the atmosphere. Current trials in the UK are looking at introducing Sphagnum moss to peatland ditches. Once a floating mat of this moss has been established, it can trap bubbles of methane in an oxygen-rich environment created by the photosynthesising moss.

When methane and oxygen are present together, methane-eating bacteria can convert methane to carbon dioxide, which has a much lower impact on the climate. Initial results showed a decrease in methane of approximately 40% when Sphagnum was present.

Some of these techniques might be too expensive to scale, and many are still at the early stages of research into their use in ditches. Nevertheless, ditches and canals can in future be climate heroes – we just need to give them the chance by managing them in smart and sustainable ways.


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The Conversation

Teresa Silverthorn has received funding for ditch research from from Defra, the Environment Agency, and EPSRC (UK research councils).

Jonathan Ritson has receive funding from the GGR-Peat project (UKRI funding, BB/V011561/1).

Mike Peacock has received funding for ditch research from Defra, the Environment Agency, NERC and EPSRC (UK research councils), and Formas and VR (Swedish research councils).

ref. How to cut harmful emissions from ditches and canals – new research – https://theconversation.com/how-to-cut-harmful-emissions-from-ditches-and-canals-new-research-273251