Brazil is experiencing one of the wettest rainy seasons on record. On Brazil's southern coast, five months of rain fell in 15 days. Flooding lead to over a hundred deaths and over 400,000 people displaced. With more extreme weather expected due to climate change, officials in Brazil are considering relocating whole towns, adding to a growing global phenomenon of people becoming "climate refugees". Carrie Kahn introduces us to some of them in southern Brazil.

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