West Greenland is home to tens of thousands of blue lakes that provide residents with drinking water and sequester carbon from the atmosphere. Yet after two months of record heat and precipitation in fall 2022, an estimated 7,500 lakes turned brown, began emitting carbon and decreased in water quality, according to a new study. West Greenland is home to tens of thousands of blue lakes that provide residents with drinking water and sequester carbon from the atmosphere. Yet after two months of record heat and precipitation in fall 2022, an estimated 7,500 lakes turned brown, began emitting carbon and decreased in water quality, according to a new study. Environment Phys.org – latest science and technology news stories