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Articles on Climate change

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A firefighting plane dumps water on one of the fires in the Los Angeles area in January 2025. Brian van der Brug / Los Angeles Times via Getty Images

Firefighting planes are dumping ocean water on the Los Angeles fires − why using saltwater is typically a last resort

In emergencies, dumping ocean water on fires may be the best option. But seawater can have long-term effects on equipment and ecosystems, as a novel coastal experiment shows.
Prime Minister Justin Trudeau makes an announcement outside Rideau Cottage in Ottawa on Monday, Jan. 6, 2025. THE CANADIAN PRESS/Adrian Wyld

The upcoming election is a critical juncture for Canada’s carbon tax and climate policies

The carbon tax, once seen as a policy achievement for the Liberals, may be a liability in this year’s election. Here is how the Liberals can counter the “axe the tax” narrative.
Trees killed by drought and an outbreak of bark beetles in California’s Tahoe National Forest in 2023. AP Photo/Godofredo A. Vásquez

Trees ‘remember’ wetter times − never having known abundant rain could buffer today’s young forests against climate change

Water availability regulates tree growth and can have ‘legacy effects’ long after conditions change.

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