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The polar regions are some of the most important areas on the planet when it comes to understanding climate change, says Philippe Archambault, scientific director of ArcticNet, a network of research centres dedicated to studying the impacts of climate and socio-economic change in the Canadian North. That’s because the ice-covered surfaces of polar regions have traditionally acted as areas that reflect the sun back to itself like a mirror.
But as the planet warms and ice in the polar regions diminishes – summer sea ice in the Canadian Arctic has declined by up to 20 per cent each decade since 1968, while winter sea ice decreased by eight per cent in the same timeframe, according to data from the federal government – both land and water absorb more heat.
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