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BRAGANCA PAULISTA, BRAZIL - FEBRUARY 23: An aerial view of the Atibainha reservoir, part of the Cantareira reservoir, one of the main water reservoirs that supplies the State of Sao Paulo, during a drought on February 23, 2015 in Braganca Paulista, Brazil. The water level of the Cantareira System is 8.5% of its total capacity. (Photo by Victor Moriyama/Getty Images)

BRAGANCA PAULISTA, BRAZIL - FEBRUARY 23: An aerial view of the Atibainha reservoir, part of the Cantareira reservoir, one of the main water reservoirs that supplies the State of Sao Paulo, during a drought on February 23, 2015 in Braganca Paulista, Brazil. The water level of the Cantareira System is 8.5% of its total capacity. (Photo by Victor Moriyama/Getty Images)