Why the melting Arctic matters to us all | The Economist

Donald Trump is pulling America out of the Paris climate agreement. But if nothing is done to reduce greenhouse-gas emissions, cities such as New York and Mumbai will have to defend themselves from flooding by the end of the century as sea levels rise.

An earlier version of this video wrongly stated that the Maldives are in the Pacific, rather than the Indian Ocean. It also said that melting Arctic sea ice will contribute to rising sea levels. It will have a small effect, but the melting of the Greenland ice sheet is a far bigger contributor. These errors were corrected on June 8th.

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