Environment + Energy – Articles, Analysis, Comment

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U.S. President Donald Trump departs with Environmental Protection Agency director Lee Zeldin and Office of Management and Budget director Russell Vought after announcing the agency will no longer regulate greenhouse gases, in the White House, on Feb. 12, 2026. (AP Photo/Evan Vucci)

Countries in the Americas can act to protect the environment without the United States

U.S. withdrawal from transnational environmental agreements presents other countries in the Americas with the opportunity to chart a new course.
Beluga whales swim in a tank at the Marineland amusement park in Niagara Falls, Ont., in June 2023. Since 2019, 19 belugas, one dolphin and one orca have died at Marineland. THE CANADIAN PRESS/Chris Young

What can whale films tell us about Marineland’s threatened belugas and dolphins?

Whether capturing them on film, containing them in amusement parks, or subjecting them to scientific experiments, our curiosity about whales and dolphins has compelled us to capture them out of the ocean.
Spectators watch the start of the women’s biathlon event in Anterselva, Italy, on February 15, 2026. The Milano-Cortina Olympic Organizing Committee has put measures in place to encourage them to adopt more eco-friendly behaviours. (AP Photo/Andrew Medichini)

The Milano Cortina Olympics: how to manage crowds in an eco‑friendly way

The initiatives put in place by the organizers for the Milano Cortina Winter Olympics are an encouraging first step, but they remain insufficient.
When wetlands are drained, carbon-rich sediments are exposed to the air, allowing rapid decomposition and the release of carbon dioxide. (Ducks Unlimited Canada)

Draining wetlands produces substantial emissions in the Canadian Prairies

Some tout wetland drainage as providing numerous benefits, including reducing emissions. This assertion is not supported by science.
An image taken by the Hubble Space Telescope in July 2025 of Abell 209, a massive spacetime-warping cluster of galaxies located 2.8 billion light-years away in the constellation Cetus. (NASA)

The Hubble tension: How magnetic fields could help solve one of the universe’s biggest mysteries

Two ways of measuring how fast the universe is expanding disagree, a puzzle known as the Hubble tension. Tiny magnetic fields from the Big Bang may offer a solution.
Olympic rings are displayed in the snow at the Stelvio Ski Centre, venue for the alpine ski and ski mountaineering disciplines at the 2026 Milan Cortina Winter Olympics in Bormio, Italy, in January 2025. (AP Photo/Luca Bruno)

As the climate changes, what does the future hold for the Winter Olympic and Paralympic Games?

For the Winter Olympic and Paralympic Games, climate change poses a risk and could impact where the Games can be held in the future.
Demonstrators with likenesses of U.S. President Donald Trump and other world leaders pretend to drill into the Earth during the COP30 Climate Summit in November 2025 in Belém, Brazil. (AP Photo/Andre Penner)

Addressing climate change without the ‘rules‑based order’

Everyone who cares about climate action must now grapple with how climate politics can function in a new world of uncertainty.
Overhead view of the fossil of Epiatheracerium itjilik. About 75 per cent of the animal’s bones were recovered, including diagnostic parts such as the teeth, mandibles and pieces of the cranium. (Pierre Poirier/Canadian Museum of Nature)

Epiaceratherium itjilik: The rhino that lived in the Arctic

Remains of an ancient Arctic rhino indicate that land mammals traversed the North Atlantic via land bridges, and did so much more recently than previously thought.
An oil worker at an oil sands facility southeast of Fort McMurray, Alta., on April 24, 2024. For many communities, the industry isn’t just jobs. It’s the economic engine funding hospitals, schools, arenas, roads and the existence of their towns. THE CANADIAN PRESS/Amber Bracken

How to include fossil fuel communities in Canada’s clean energy transition

To be inclusive and impactful, energy transition policies need to be co-created with the communities and workers who run Canada’s energy industries.
A black smoker hydrothermal vent at a wa­ter depth of 3,300 meters in the Log­atchev Hy­dro­thermal Field on the Mid-At­lantic Ridge. (Zentrum für Marine Umweltwissenschaften, Universität Bremen)

How the ocean’s hydrothermal systems made the first life on Earth possible

Researchers have discovered that chemical reactions in underwater hydrothermal vents could have produced the necessary ingredients for life on Earth.
The Pickering Nuclear Generating Station, in Pickering, Ont. Several countries, including Canada, have produced nuclear energy for decades; however, finding a permanent solution to nuclear waste has proven challenging. THE CANADIAN PRESS/Frank Gunn

Ontario’s proposed nuclear waste repository poses millennia‑long ethical questions

Such repositories raise complex ethical questions around public safety, particularly given the millennia-long timescales of nuclear waste.
People light candles outside Le Constellation bar in Crans-Montana, Switzerland, on Jan. 3, 2026, where a devastating fire left many people dead and injured during the New Year’s celebrations. (AP Photo/Baz Ratner)

What the New Year’s fire at a Swiss bar tells us about fire prevention

A spark may start a fire, but systems decide whether it becomes a disaster. The Swiss New Year’s blaze shows what happens when they fail.