Severe
Lightning sparks more wildfires in northern Alberta, firefighters face tough day
Explainers
What do storm chasers really do? Two tornado scientists take us inside the chase
Forecasts
Severe storm risk spans the Prairies, risk of damaging winds, large hail
At least three earthquakes strike off the B.C. coast; no tsunami threat
Finally a rain-free weekend? Gorgeous summer weather ahead in southern Ontario
Icy super-Earth identified by Webb as 'promising' alien water world
Earth's core confirmed to have 'reversed' its spin. So what does this mean?
After Earth's year of historic heat, how close are we to passing 1.5 C limit?
Summer Games organizers vow their 'greenest' affair to combat heat
How much microplastics are inside humans? New film unveils a figure
Can bat boxes help Canada's troubled mammals endure tough weather?
New Brunswick invasive species council raises alarm over harmful rose
Seasonal allergies seem worse this year. Experts explain why it may feel like it
Explore the Rolling Hills of the East Coast: Cape Breton awaits
How hot weather can worsen some pre-existing health conditions
AQI, AQHI, and your health: Air quality ratings explained