severe drought in Brazil, temperature rise causes desertification, low water levels and sandbanks in amazon river basin

severe drought amazon river drought drying rivers sandbank temperature rise desertification sandbanks climate change dried up river river basin amazon river basin threat dry warm global warming rising temperatures lowest level low water level restricting exposes water levels dropped summer brazil drone weather climate ecosystem shore resource dry season hydrology impact riverbed adaptation el nino brazilian aerial view change crisis extreme imbalance para state scarcity aerial low water