Greenpeace carries out an expedition to the main surface water sources in the south east region of Brazil, where millions of people are threatened by water shortage since 2014, to highlight the connection between deforestation and water crisis. Drones caught images from the main reservoirs in the region: Paraibuna reservoir (Paraíba do Sul water supply system), Jacareí (Cantareira water supply system) and Serra Azul (Paraopeba water supply system)."