The former head of U.S. counter-espionage says Canada is putting North American security at risk by allowing a Chinese tech giant to participate in major telecommunications projects.

Butterflies have migrated across Eastern Canada this spring in unprecedented numbers, reflecting the warm winter throughout North America and raising alarm bells about what it might mean for other species.

The 2008 Summer Olympics Olympics were a powerful laboratory for showing how improvements in air pollution improve cardiovascular health.

Canada has the world's 8th largest ecological footprint per capita, according to WWF's Living Planet Report 2012, which was released on Tuesday.

Half of Americans think Facebook is a passing fad, according to the results of a new poll.

If you thought The Avengers was the most hotly anticipated geek blockbuster of the summer, you may be in for a shock.

After sitting on a Commons committee report for nearly two months, the Harper government has limited the final stages of debate on its long-awaited changes to the Copyright Act.

The Supreme Court of Canada is examining the case of a Sudbury, Ont., high school teacher who was charged with possessing child pornography after sexually explicit photos were found on a school-issued laptop he was using.

Volunteers and officials from Ontario's Ministry of Natural Resources will ID and name four peregrine falcons hatched under the Ambassador Bridge in Windsor, Ont.

A Calgary father and web specialist is going public to warn other parents about a popular website — where major Canadian corporations advertise — and where young teens engage in public, sexually explicit exchanges via live webcam and text.