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Future flood losses in the world’s largest coastal cities

Rising sea levels and subsidence due to ground water pumping, coupled with increasing populations and economic growth in coastal cities, is expected to lead to a greater proportion of people living in low lying regions which will result in higher annual losses from flooding. A Nature Climate Change article, published recently, has estimated the average annual losses from flooding in the world’s largest coastal cities. The analysis shows annual loses from flooding could rise from about $6 billion per year in 2005 to over $1 trillion per year by 2050. Sea level rise and subsidence  alone will increase annual losses to around $63 billion by 2050, even if investments are made to maintain flood probabilities at current levels. You can read more about the work here: http://link.springer.com/article/10.1007/s11069-012-0234-1.

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About ihaigh

Lecturer in coastal oceanography - Ocean and Earth Science, National Oceanography Centre, University of Southampton

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