Articles on sea ice

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An Arctic iceberg, pictured in 2015. This year, ice coverage has reached record lows for the early northern winter. AWeith/Wikimedia Commons

Yes, the Arctic’s freakishly warm winter is due to humans’ climate influence

The end of 2016 has brought balmy Arctic temperatures and record low ice extent for the time of year. It's a freak event even by modern standards, and climate models point the finger firmly at humans.
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.
Breaking the ice: while scientists increasingly understand why Antarctic sea ice is growing, it remains tricky to forecast. Australian Antarctic Division

Expanding sea ice is causing headaches for Antarctic stations

Antarctica's sea ice is changing in ways that scientists didn't predict, and is now causing headaches for Antarctic stations.
In the long run all this will be gone. NASA

Why Arctic melting will be erratic in the short term

Arctic sea ice melts each summer, reaching its minimum extent sometime in September, before refreezing through the winter. Over the past 35 years, the September sea ice extent has reduced by about 35…
Antarctica has actually been protected from sea ice melt by the ozone hole. Vassil Tzvetanov

The ozone hole leaves a lasting impression on southern climate

Many people think of sunburn and skin cancer when they hear about the ozone hole. But more ultraviolet (UV) radiation isn’t the only problem. The ozone hole has also led to dramatic changes in Southern…
In 2012 and 2013 parts of New Zealand suffered the worst drought in 70 years. Dave Young/Flickr

New Zealand is drying out, and here’s why

Over 2012 and 2013, parts of New Zealand experienced their worst drought in nearly 70 years. Drought is the costliest climate extreme in New Zealand; the 2012-2013 event depressed the country’s GDP by…
Sea ice, coming to an Antarctic sea near you. Brocken Inaglory

Data error discovery slows trend of growing Antarctic sea ice

The amount of the earth’s ocean surface covered by sea ice has been continually observed by satellites and its extent estimated since 1978. The trend has been for shrinking sea ice in the Arctic and, more…
The Ross Sea: one of the places where sea ice extent is increasing. Brocken Inaglory/Wikimedia Commons

What is the paradox of increasing Antarctic sea ice really telling us?

This year could well see a new record set for the extent of Antarctic sea ice – hot on the heels of last year’s record, which in turn is part of a puzzling 33-year trend in increasing sea ice around Antarctica…
Clearing snow for a helicopter rescue makes for a dramatic photo, but let’s not forget the science. EPA/Andrew Peacock/Footloosefotography/spritiofmawson.com

An icebreaker gets stuck in the ice, photos are used to mislead

As the saying goes, a picture is worth a thousand words, and by now you might have seen dramatic images of passengers on stranded icebreaker Akademik Shokalskiy being rescued by helicopter last Friday…

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