onald McLennan is a senior scientist with POLAR Knowledge Canada in charge of monitoring at the Canadian High Arctic Research Station (CHARS) in Cambridge Bay, Nunavut.

In this series of videos, Donald talks about the research being done in the Canadian Arctic, the dangers of runaway climate change and what needs to be done to prevent its worst effects.

Muskox Decline in the Canadian Arctic

"There have been tremendous declines in the Muskox population in our area in the past five years."

The Arctic's Methane Time Bomb

"The predictions are frightening as to how much methane there may be in the seafloor."

Arctic Lakes, Methane & Climate Change

"Victoria Island is the seventh largest island in the world, and probably a third of the area of the island is lakes. So there's reason to believe every one of these lakes is contributing methane every year to the atmosphere."

Arctic Change and Extreme Weather

"Climate change will have a variety of impacts all over the globe that are very complex and difficult to understand."

Climate Policy and the Role of Science

"We need to make huge changes to our socio-economic system that people aren't prepared to make because of their investment in the status quo."

Banner Image: The Canadian High Arctic Research Station (CHARS) in Cambridge Bay, Nunavut. Courtesy of Ocean Networks Canada.