Stories by Anne Casselman

The California drought threatens several of its native fish with extinction. Will the Sacramento River’s winter-run Chinook be the first to go?

Pollution may soon overwhelm deep seas' ability to sequester mercury, which builds up in tuna and other predatory fish

Large cracks remain in the science assessing Enbridge’s Northern Gateway Pipeline project

In a bid to buoy flagging seabird populations, park biologists eradicate rats from islands in British Columbia

Knowing we can retrieve facts online later alters memory

Locals with a long history of traditional stewardship of resources are now conducting fisheries surveys to ensure sustainability

Poor salmon runs along British Columbia's central coast rain forest since 2003 have spurred scientists to gauge the fish's nutritional impact on grizzly bears

Researchers are checking in this summer at 72 baited hair-snagging stations located across 5,000 square kilometers of remote temperate rain forest in Heiltsuk Traditional Territory, British Columbia

A recent study suggests a mystery pathogen acting in concert with human-induced stressors may be the culprits

Dogs have played heroic roles throughout the history of modern science in experiments that weren't always humane

NEPTUNE Canada, the world's largest regional cabled undersea network, promises to usher in a new era of ocean science when it goes online December 8*

Scientists are collecting hairs from live bears to prevent population declines as a result of decreases in a principal food source: salmon

With the melting of Arctic Ocean ice, the fabled waterway between Europe and Asia has been open to shipping the past two summers--or has it?

Despite a reputation for environmental friendliness—and official pledges—the 2010 Vancouver Winter Olympics are already taking an environmental toll

Leadership in Energy and Environmental Design (LEED) certification, recaptured gas, and a hydrogen highway are parts of attempts to be the greenest Olympics ever

To see what extraterrestrial life might be like, scientists are busy studying freshwater coral reef–like structures in a Canadian lake