The warmer the lakes get, the more heat and moisture there is, intensifying snowfall. As warmer winters limit the amount of ice cover, those storms may stretch deeper into the season.

Canadian forests are increasingly primed for severe, uncontrollable wildfires, a study published Thursday said, underlining what the authors described as a pressing need to proactively mitigate the "increased threat posed by climate change."

The program is overseen nationally by Birds Canada and the results help to underpin some major reports about Canada's bird population, including the federal government's State of Canada's Bird 2024 report.

The case was brought by seven young people who argue Ontario's weakened emissions target violated the Charter.

The campaign organized by Decolonial Solidarity, Change Course and Stand.Earth has drawn a mix of intrigue, skepticism and praise from organizers and academics who study Canadian social movements. Observers says it offers an example of how advocacy groups are testing out novel tactics to bring in new recruits in the fight against global warming.

Environment and Climate Change Canada is expanding upon a system it introduced in the summer to measure heatwaves. The tool will help officials with measuring the extent to which human-caused climate change affects individual cold snaps.

Sian Kou-Giesbrecht, an assistant professor at Dalhousie University, conducted a modelling study that estimates about 12,566 annual wildfire smoke-related deaths in the 2010s were linked to climate change, up from about 669 in the 1960s.

The case is the first in Canada to consider whether governments' approach to climate change has the potential to violate the Charter of Rights and Freedoms.

The Court of Appeal for Ontario heard arguments earlier this year brought by seven young people who say the province's weakened emissions target is a violation of their constitutional rights.

It's latest in a series of city-level moves across Canada, including in Ottawa and Montreal, to look at greenwashing, a term for ads that make misleading or false environmental claims.