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Quote of the day

When seen through the lens of technology, few resources are truly scarce; they’re mainly inaccessible. 

 

Peter Diamandis

Climate change will noticeably reduce oxygen in oceans by 2030

RATE THIS! +7
Posted in Science on 28th Apr, 2016 11:33 AM by AlexMuller

 A study published in Global Biogeochemical Cycles found that we will be able to detect a loss of oxygen due to climate change in oceans all over the world by 2030. Low oxygen levels in water can create dead zones, areas of the ocean where sea life such as crabs, fish, and other animals can't live.

 

These already occur periodically around coastlines, in shallow water, and even in the open oceans when sea surface temperatures are warm. Unfortunately, with temperatures rising around the world, this could only get worse.

 

"Loss of oxygen in the oceans is one of the serious side effects of a warming atmosphere, and a major threat to marine life," NCAR scientist and lead author of the study Matthew Long said. “Since oxygen concentrations in the ocean naturally vary depending on variations in winds and temperature at the surface, it's been challenging to attribute any deoxygenation to climate change. This new study tells us when we can expect the effect from climate change to overwhelm the natural variability."
 
Low levels of oxygen in the oceans can be devastating. Not only can they kill or slow down ocean life in the present, but if low oxygen levels persist, they can have grave impacts on the future. 'The Great Dying' is an extinction event that killed roughly 90 percent of species on Earth 250 million years ago. Researchers looking at the event found that low levels of oxygen in the oceans probably slowed down the recovery of life on Earth. After that extinction, it took five million years for the diversity of life to recover as oxygen levels in the oceans slowly rose back to normal.

Tags: climate changeglobal warmingclimateenvironmentCO2oceanoxygenbiology

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Comments

Author: Guest
Posted: 2016-05-06
+0
They can Dave B. – see Joe Wat12ngron&#8im7;s column in the Sun today. That’s exactly what he’s advocating for. I don’t think it’s out of the question. The question is though, whether Hudak and Horwath will see that possibility? Reply


 

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