Hazardous severe storm risk reignites across northern Ontario, Quebec

Tornado watches issued in Saskatchewan amid funnel cloud potential

How hot is it? Roads are buckling across parts of North America

The science behind spectacular Canada Day firework displays

What is a mesoscale convective system? How an 'MCS' can spell danger

Hair suddenly standing straight up? Take cover immediately

Startup sells plastic-eating fungi diapers to tackle landfill waste

Canadian heat waves far more likely in the era of climate change

May was world's second-hottest on record, EU scientists say

Phytoplankton, key to ocean life, falling 2% per year in North Atlantic

Researchers detect blue-green algae toxin in Lake Erie earlier than ever before

2 people now confirmed dead in Bow Glacier Falls rockfall in Banff National Park

No air conditioner? Here's how to keep cool during extreme heat

Extreme heat ahead: Heat stroke warning signs to watch for

From drips to disasters: How to flood-proof your home