Brazil's Indigenous battle with a dry Amazon rainforest

The deep timbre of bamboo flutes emerges from within a darkened Indigenous communal house in the Amazon rainforest, followed by dancers in body paint and musicians rhythmically stomping their feet under the scorching afternoon sun. Variations of this scene have played out for generations in the Kalapalo people's Tanguro village in Brazil's Xingu Indigenous Park. But instead of the traditional thatched roof, the communal house is covered with a white plastic tarpaulin, decorated with a brand logo and the words "for agriculture use only." The roof is one of many signs of increased cattle and soybean farming on the Amazon's highly deforested Southeast fringes, the rainforest's fastest warming region where the dry season is several weeks longer than it was...