A dangerous situation is unfolding across southern Ontario as heavy rain prompts evacuations amid significant flooding and ice jams.
Thursday's SpaceX launch has some cool surprises in store
State of emergency as Ontario flood crisis continues
Elusive 'firefall' defies odds, shines bright in Yosemite
Snowshoe hares struggle to keep pace with climate change
The many ways polar bears need sea ice
The surprising benefits of oysters
Arctic air floods into B.C., record lows and snow likely
Opportunity rover sends back first ever selfie from Mars
Flight warnings in Indonesia after Mount Sinabung erupts
Yukon Arctic Ultra athlete likely to lose toes to frostbite
Thousands of customers without power in southern B.C.
Incoming heavy snow with freezing rain for northern Ont.
Arctic air over Prairies, risk of 20+ cm of snow for Alberta
Icy roads with drastic temperature drop for Atlantic Canada
Driver with snow-covered windshield to police: 'Don't worry'
Sea ice at both poles is at lowest levels on record, again
Over 100,000 without power in Quebec after ice storm
Bloodthirsty bat's genetic secrets revealed
Scientists watch plastic hotspots form in real time
Severe weather ceremony cancelled due to severe weather
Risk of road closures, outages as storm hits northern Ont.
Chicken shortage causes KFC to close hundreds of U.K. stores
The best shots from this year's 'Torontohenge'
Winter far from over: Interesting pattern changes ahead
All 65 passengers, crew feared dead in Iranian plane crash
Helicopter surveying Mexico quake damage crashes, 13 dead