Articles on Polar ice

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Adélie penguin at the Mt Siple breeding colony, West Antarctica. Jasmine Lee

The winners and losers of Antarctica’s great thaw

Climate change is set to expand Antarctica's ice-free area, potentially helping native species to flourish but also paving the way for invasive species to gain a foothold.
Water mass enters the ocean from glaciers such as this along the Greenland coast. NASA/JPL-Caltech

Contributions to sea-level rise have increased by half since 1993, largely because of Greenland’s ice

Greenland's ice is largely responsible for the accelerating pace of sea-level rise. A new analysis shows that, while Greenland accounted for just 5% of the rise in 1993, that figure rose to 25% by 2014.
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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