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We can still prevent the collapse of the West Antarctic ice sheet – if we act fast to keep future warming in check

Seafloor sediments from beneath the Ross Ice Shelf represent an archive of warmer periods in Earth’s past. An ambitious international project aims to uncover what we can learn about our hotter future.
@DLorrey, NIWA

The Zealandia Switch drove rapid global ice retreat 18,000 years ago. Has it switched to a new level?

Rocks deposited by vanishing glaciers in the Southern Alps thousands of years ago hold climate clues about the past, painting a bleak picture about the long-term survival of alpine ice in New Zealand.
Hagen Hopkins/Getty Images

A significant number of New Zealanders overestimate sea-level rise — and that could stop them from taking action

Survey respondents who overestimated the amount and speed of sea-level rise were more likely to express greater concern. But concern is not always helpful in prompting action.
Selama Pliosen, sepertiga lapisan es Antartika mencair, menyebabkan kenaikan permukaan laut sebesar 20 meter. from, CC BY-ND

Bila pemanasan global melebihi 2°C, lelehan es Antarktika bisa menaikkan muka laut hingga 20 meter

Penelitian terbaru menunjukkan pemanasan lebih dari 2°C menjadi titik penting bagi lapisan es di Antarktika, yaitu pencairan es secara besar-besar dan perubahan garis pantai di masa mendatang.
During the Pliocene, up to one third of Antarctica’s ice sheet melted, causing sea-level rise of 20 metres. from

If warming exceeds 2°C, Antarctica’s melting ice sheets could raise seas 20 metres in coming centuries

New research shows that warming by more than 2°C could be a tipping point for Antarctica’s ice sheets, resulting in widespread meltdown and changes to the world’s shorelines for centuries to come.


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