Ocean modelling suggests coastal cities around the world need to start preparing for several metres of sea level rise over the coming centuries
The study doesn’t forecast how much sea level rise this will result in, but concludes that policy-makers need to prepare for several metres of sea level rise over the coming centuries.
Based on a model of the Amundsen Sea off West Antarctica, Naughten and her colleagues predict that changing currents will bring this deeper water closer to the surface, resulting inThe disappearance of such floating ice doesn’t raise sea level directly, but when ice shelves are lost, the flow of ice from land into the sea speeds up. What’s more, much of the West Antarctic ice sheet rests on rock that is below sea level.
But cutting emissions as fast as possible remains crucial, says Naughten. “Even if this particular impact is unavoidable, the melting of the West Antarctic ice sheet is only one impact of climate change.”
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Increased West Antarctic ice sheet melting 'unavoidable,' say scientistsScientists ran simulations on the UK's national supercomputer to investigate ocean-driven melting of the West Antarctic ice sheet: how much is unavoidable and must be adapted to, and how much melting the international community still has control over through reduction of greenhouse gas emissions.
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