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Coastal flood risk to double

Coastal flood risk to double 19 May 2017

Sea level rise will double coastal flood risk worldwide (via The Guardian)

Damian Carrington

Small but inevitable rises in sea level will double the frequency of severe coastal flooding in most of the world with dire consequences for major cities that sit on coastlines, according to scientists.

The research takes in to account the large waves and storm surges that can tip gradually rising sea levels over the edge of coastal defences. Lower latitudes will be first affected, in a great swath through the tropics from Africa to South America and throughout south–east Asia, with Europe’s Atlantic coast and the west coast of the US not far behind.

The most vulnerable places, including large cities in Brazil and Ivory Coast, and small Pacific islands, are expected to experience the doubling within a decade.

“It is pretty much inevitable that we are going to see increased frequency of extreme water levels – there is no way around this,” said Sean Vitousek, at the University of Illinois at Chicago, who led the research.

Climate change is causing sea levels to rise at about 4mm per year, as ice caps melt and the oceans warm and expand. This will continue for many years due to the carbon dioxide emitted into the atmosphere.

Read more via The Guardian…