Brazil's mangroves on the front line of climate change

Instead he parks his two-foot-wide boat at the shore of the Caratingui river and wends his way on foot through the tangle of mangroves to dig out crabs with his hands from the dark muck. Water levels have risen 20-30 centimeters over the past 100 years in coastal Bahia state, where Cairu is located, according to climate researcher Carlos Nobre at the University of Sao Paulo.

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