Southern resident killer whales are using kelp for what scientists suspect are both hygienic and social purposes.

The Vera C. Rubin Observatory, which houses a telescope with the largest digital camera ever built, has revealed its first images.

Dalhousie University researchers analyzed data collected over more than half a century to assess how two types of phytoplankton are responding to climate change.

Thousands of Canadians go to the U.S. for graduate school every year. Now, uncertainty around science funding — from cuts and freezes announced by the Trump administration — mean some U.S. universities are cutting back on admissions.

Researchers have discovered a new species of ancient fish with hooked front fangs that made them a fearsome and effective predator.

Scientist Daniel Shugar says images of the aftermath of Thursday's deadly rockslide in Banff National Park provide evidence of its cause — water flowing through the interior of the mountain.

Quebec’s warm and wet May created the perfect breeding ground for blackflies.

Scientists in the U.S. are dealing with funding cuts left and right by the current government. But because Canada is so closely tied with its southern neighbours, those cuts are being felt here as well.

Insect-borne diseases are becoming increasingly common in southern parts of the province, with climate change playing a part.

Indigenous and riverine communities in the Loreto region of the Peruvian Amazon have "chronic exposure" to mercury, according to a new study — and experts say the biggest culprit is gold mining in the region. 

Researchers say air pollution in Toronto is a complex problem that goes way beyond car exhaust fumes. A new study could make it clear what we’re breathing in - and where it's coming from.

Inactive and abandoned oil and gas wells in Canada are a much bigger climate problem than previously thought, emitting seven times more methane than the official estimates, according to a new study from researchers at McGill University.

After 12 consecutive months with temperatures 1.5 C above the 1850-1900 average, Earth’s temperature has now fallen slightly. But that doesn't mean the planet is cooling off.

Summers have never been quite the same since June 20, 1975, and it's all thanks to a "mindless eating machine" that terrorized moviegoers and beachgoers alike. That was the day Jaws hit movie theatres, ushering in the era of the summer blockbuster and becoming a pop culture phenomenon that still resonates 50 years later. 

In this issue of our environmental newsletter, we see how and why grassy sidewalk strips and medians are being transformed in Boston, map what neighbourhoods are buying EVs in B.C. and Ontario, and hear from companies about why some of them have stopped talking about their climate goals.

SpaceX's Starship spacecraft exploded into a dramatic fireball during testing in Texas late on Wednesday, the latest in a series of setbacks for billionaire Elon Musk's Mars rocket program.

As the G7 summit concludes in the popular wilderness destination of Kananaskis, Alta., officials say provincial teams managed frequent animal encounters without serious incident.

Ever wonder how the Toronto Zoo makes sure those cute baby animals are born? CBC’s Dwight Drummond went behind the scenes at the Toronto Zoo to find out.

A UN push for investment to protect the world's oceans yielded around $10 billion US in deals at a conference last week, way below the estimated annual need.

DNA testing company 23andMe didn’t have adequate data protections and ignored warning signs ahead of a massive data breach almost two years ago, an investigation by Canada’s privacy commissioner found.