312: Canada's worst air quality of the year so far due to wildfire smoke

Prolific wildfire smoke continues spreading across Canada, U.S.

What is a state of emergency? How these orders help in a crisis

A train of risks: Extreme heat's hidden impacts on a vital industry

Streaks in the sky: Ontario sees prolonged contrail activity

Imagining a world without modern weather forecasting

Arctic warming seen at three times global average in years ahead: UN agency

How one company plans to suck carbon right out of the air (and make money)

As the Great Lakes warm, researchers say more winter science is crucial

Sightings of invasive goldfish in P.E.I. pond spark breeding worries

La Ronge blanketed in smoke as wildfires rage across northern Saskatchewan

Meet the supergiant that's quietly lurking across 60 per cent of Earth's oceans

Study finds kids grow faster during school year. Is weather a factor?

More dangerous than snow: Why driving in the rain can be a bigger hazard

Prairie wildfires create smoky conditions: Understanding air quality readings