Canada has experienced its warmest winter since modern record-keeping began, with average temperatures 3.9 degrees above normal and all regions of the country basking in abnormal mildness, according ...

Add Yahoo as a preferred source to see more of our stories on Google. Snow is Canada’s hidden reservoir. Each winter, the precipitation it brings is stored not behind dams, but across mountains, ...

Most of Canada and the northern United States may see far less snow than average this winter thanks to a strong and persistent El Nino, U.S. forecasters say — if past years are any indication.

Warming winter temperatures and fewer extreme cold events are allowing tropical species to migrate into northern temperate areas, which could threaten native species and introduce foreign pathogens.