Researchers looked at nearly 400 lakes in temperate climate zones in the United States, Canada, Europe, Asia and South America. The scope included 84 lakes in Minnesota many in the Twin Cities metro, plus Leech Lake and Lake Itasca in northern Minnesota.
Oxygen levels have dropped in hundreds of lakes in the United States and Europe over the last four decades, a new study found. And the authors said declining oxygen could lead to increased fish kills, algal blooms and methane emissions..
It’s not just oceans that are in trouble from climate change. Oxygen levels in temperate freshwater lakes are plummeting worldwide, a new study suggests. The climate-change-driven trend threatens everything from freshwater biodiversity to drinking water quality, researchers said in a study published Wednesday in Nature.