Forecasts
How the tropics help produce big springtime snows on the Prairies
Explainers
The frightening reason violent EF-5 tornadoes are so rare
Sneaky, late-April snow could catch B.C., Alberta drivers off guard
Animals
Bear-tracking study celebrates citizen science in Alberta's grizzly country
Warm, humid air mass fuels a thunderstorm risk in southern Ontario
Bizarre alien 'spiders' spotted in 'Inca City' formation on Mars
Juno reveals 'smooth as glass' lava lake on Jupiter's moon, Io
Could climate change bring paradigm shift in biodiversity tracking?
As plastic treaty talks open, countries more divided than ever
Remembering the first Earth Day, the largest single-day protest in history
Beachcomber stumbles upon fossil possibly 290 million years old
Toronto opens park washrooms, water fountains early this year
What are microplastics doing to human health? Scientists work to connect dots
Air quality in parts of U.S. worst in 25 years, wildfires to blame
Health-harming heat stress rising in Europe, scientists say