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Articles sur Southern ocean

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Smoke from the Black Summer fires created an algal bloom bigger than Australia in the Southern Ocean

This enormous, unprecedented algal bloom could have profound implications for carbon dioxide levels in the atmosphere and for the marine ecosystem.
The big wildcard for sea level rise is Antarctica. James Eades/Unsplash

Antarctica is headed for a climate tipping point by 2060, with catastrophic melting if carbon emissions aren’t cut quickly

If emissions continue at their current pace, Antarctica will cross a threshold into runaway sea rise when today’s kids are raising families. Pulling CO2 out of the air later won’t stop the ice loss.
Image: Elizabeth Leane

Custodians of Antarctica: how 5 gateway cities are embracing the icy continent

‘Antarctic cities’ residents care deeply about the continent, with environmental concerns outweighing economic priorities. Asked about its future, they feel a mix of hope, pessimism and sadness.
Not all clouds are the same, and climate models have been predicting the wrong kinds of clouds over the Southern Ocean. Kathryn Moore

We caught bacteria from the most pristine air on earth to help solve a climate modeling mystery

Climate models have been overestimating how much sunlight hits the Southern Ocean. This is because the clouds there are different from clouds anywhere else. Bacterial DNA helped us understand why.
During the Pliocene, up to one third of Antarctica’s ice sheet melted, causing sea-level rise of 20 metres. from www.shutterstock.com

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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