More fish kills, more algal blooms and more methane emissions: Oxygen levels have dropped in hundreds of lakes in the United States and Europe over the last 40 years
Oxygen levels have dropped in hundreds of lakes in the United States and Europe over the last 40 years. And the authors said declining oxygen could lead to increased fish kills, algal blooms and methane emissions. Researchers examined the temperature and dissolved oxygen — the amount of oxygen in the water — in nearly 400 […] More