Radon gas, an invisible health threat that can build up in your home, is putting more Canadians at risk of deadly lung cancer. A national research team is using throwaway toenail clippings to find markers of high radon exposure, in the hope of expanding cancer screenings to save lives.

Through conservation efforts leading to a resurgence of bald eagle numbers across the continent, the iconic raptors can be found practically anywhere in Alberta, from along the Bow River in Calgary to deep in the grasslands.

A new national analysis finds Canada is seeing fewer wildfires overall, but a growing share of damage is being driven by a smaller number of increasingly large, hard-to-control fires.

While human missions to the moon will be facing Earth, on the other side of the moon, completely hidden from view, there will be a plethora of robots silently peering out to the edge of the universe and back to find out how it all began.

New Canadian research, using decades of samples from the Gulf of St. Lawrence, shows that as Arctic krill becomes scarce, fin and minke whales are eating more of the kinds of fish that humpback whales eat — but that they’re sharing these resources

We're not even one month into 2026, and with everything that's happening, now we have to deal with exploding trees? No, not entirely. But a sudden deep freeze is going to send temperatures plummeting in much of Canada and the U.S., which could cause an ear-splitting phenomenon.

A Banff National Park superintendent told Parks Canada wildlife staff — over their objections — to move a black bear due to public safety concerns at a popular resort ski resort, according to documents obtained by CBC News.

Staff at an Agriculture Agri-Food Canada research farm in Nappan, N.S., were given notice of cuts on Thursday, and the federal government is offering few details on the facility's future.

The highly contagious H5N1 strain of bird flu has been found in samples collected in Manitoba after a die-off, but a U of Manitoba researcher says it's reassuring to know the virus hasn't mutated into a different strain.

The federal government is considering putting sandhill cranes back on the menu in northern Ontario, potentially as early as this fall.

Yesterday morning, a skier on a backcountry run called the Vortex near Lake Louise was caught in a size 2 avalanche but was uninjured in the incident.

The Nature of Things explores how dogs might be using human language with the help of buttons on a soundboard.

Veronika the brown cow's dexterous and graceful tool use upends long-held assumptions about the intelligence of cows, say scientists.

A Windsor man says he is being asked by the city to undo the repairs he made to his backyard. Robert Redmond says he took out the berm, worth 52 dump truck loads of dirt, from his backyard at about $6,700. Now, the city is asking him to put it back. But that could cost upwards of $50,000.

Martin Froger Silva, a videographer for the Center for Oldest Ice Exploration, tells The National about the moment he filmed the inside of a glacier in Antarctica that’s millions of years old.

A heavy dust storm swept across Libya on Tuesday, reducing visibility, forcing the temporary suspension of flights at two airports and shrouding cities there with a thick orange haze.

The northern lights, also known as the aurora borealis, put on a show in parts of Canada, the U.S. and Europe overnight Monday into Tuesday, with the vivid display seen much farther south than usual amid intense geomagnetic and solar radiation storms. Video that has been verified by Reuters shows shimmering green and pink hues in the sky over the Yukon hamlet of Mount Lorne.

Penguins in Antarctica are changing their breeding habits at record speed to survive rising temperatures from climate change, a decade-long study has found.

Whether you call it radiation fog, ground fog, valley fog or a temperature inversion, it all comes down to the same physics: the atmosphere flipping upside down. CBC’s Johanna Wagstaffe breaks down how a high-pressure system can turn our valleys into bowls of clouds.