A strong, stable vortex is like a skater spinning with their arms tucked closely in, holding in an area of cold air over the Arctic. But when there’s a wobble in the rotation, winds in the vortex can ...

Scientists have quantified how much climate change has driven the population decline of polar bears living in Canada's Hudson ...

Research has found that rising temperatures in the Arctic are weakening weather systems that normally trap the cold around ...

University of Toronto Scarborough researchers have directly linked population decline in polar bears living in Western Hudson ...