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Scientists find climate change is reducing oxygen in rivers worldwide
- Global warming has caused an average 2.1% drop in oxygen levels in over 21,000 rivers worldwide since 1985, threatening aquatic life, according to a study in Science Advances led by Qi Guan.
- If the current rate continues, rivers in regions including the Eastern US, India, the Arctic, and tropics could lose between 5% to 10% of oxygen by the end of the century, increasing the risk of dead zones and fish suffocation.
- Nearly 63% of oxygen loss in rivers is attributed to warmer water due to climate change, with nutrient pollution, dam construction, and flow issues also contributing and worsening pollution impacts noted by ecologist Emily Bernhardt.
- Dead zones in rivers have become more frequent over recent decades, with significant increases such as in the Amazon, and scientists warn warming will further exacerbate oxygen depletion and threaten fish populations.
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Associated Press News+14 Reposted by 14 other sources
Scientists find climate change is reducing oxygen in rivers worldwide
Global warming is causing rivers to slowly lose oxygen, threatening fish and other lives. A study released Friday of more than 21,000 rivers worldwide shows they have lost an average of 2.1% of their oxygen since 1985.
·United States
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Tropical rivers emerge as biggest oxygen-loss hotspots in a warming world
According to a study published in Science Advances on May 15, global rivers are undergoing widespread and sustained deoxygenation driven by climate warming, among which tropical rivers are the most vulnerable ecosystems, with an urgent need to combat oxygen loss.
Coverage Details
Total News Sources16
Leaning Left6Leaning Right3Center5Last UpdatedBias Distribution43% Left
Bias Distribution
- 43% of the sources lean Left
43% Left
L 43%
C 36%
R 21%
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