Dead zones are sapping the seas of oxygen
5 May 2016
By TIM RADFORD | Scientists in the US have identified a new hazard in a world in which the climates change and the oceans warm: measurable stretches of the seas could become sapped of oxygen.
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Extremes of heat deprive fish of the oxygen they need to survive near the ocean surface | Naren Gunasekera |
They say that parts of the southern Indian Ocean, the eastern tropical Pacific and the Atlantic are already less oxygen-rich because of global warming. And oxygen deprivation could become increasingly widespread across large regions of ocean between 2030 and 2040.
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