Canada's high Arctic glaciers at risk of disappearing completely, study finds

Satellite imagery shows hundreds of glaciers shrinking as average annual temperature rises 3.6C in 70 years

Hundreds of glaciers in Canada's high Arctic are shrinking and many are at risk of disappearing completely, an unprecedented inventory of glaciers in the country's northernmost island has revealed.

Using satellite imagery, researchers catalogued more than 1,700 glaciers in northern Ellesmere Island and traced how they had changed between 1999 and 2015.