Articles sur Polar ice

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Glaciers have been a major contributor to sea-level rise. Knut Christianson

What does the science really say about sea-level rise?

Could sea levels really rise by several metres this century. Probably not, although this century's greenhouse emissions could potentially set the stage for large rises in centuries to come.
In some regions of the Arctic, polar bears will spend their entire lives on sea ice or the ocean. Christopher Michel/flickr

Polar bears unlikely to compensate for ice loss in summer

Could polar bears slip into a hibernation-like state to tough out lean hunting during summers with little sea ice? Sadly, experiment suggests no.
The Totten Glacier, the largest in East Antarctica, has deep channels running beneath it that may allow relatively warm water into its belly. Tas van Ommen

Melting moments: a look under East Antarctica’s biggest glacier

Researchers in East Antarctica have surveyed an area the size of New South Wales to study the behaviour of the region's biggest glacier - and the secrets below the ice that could speed up its melting.

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