地球温暖化による海洋などへの影響は、1)海水温度上昇、2)海水の酸性化、3)海水の酸素不足。
El cambio climático altera la vida oceánica más rápido que en 65 millones de años
Aumento de la temperatura del agua, acidificación y deficiencia de oxígeno son los factores clave del impacto del calentamiento
El País Madrid 28 MAR 2014 - 20:47 CET
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Climate change alters ocean life faster than 65 million years
Increased water temperatures, acidification and lack of oxygen are the key factors of the impact of warming
The Country Madrid 28 MAR 2014 - 20:47 CET
The current and foreseeable climate change is altering the conditions in the Earth's oceans faster than in any comparable period of the last 65 million years , say biologists who prepared the relevant chapters of the draft report of the Intergovernmental Panel on Climate Change (IPCC ) of the United Nations debate Yokohama (Japan) . These are the conclusions of the second working group on impacts of global warming, the Fifth Assessment Report ( AR5 ) of the IPCC. The approval of the final document , with its summary for policy makers , is scheduled for Monday, March 31 . The Working Group I, the physics of climate, pulled its report last September.
"As a result of climate change, three factors have an impact that is altering the lives of fish , mammals , algae and other ocean dwellers ," says Hans -Otto Pörtner scientist Alfred Wegener Institute ( Germany ) and responsible , along with American David Karl , the IPCC report chapters dedicated to ocean systems . "The most important factor is now ocean warming , which is already causing significant changes : for example the movement of species such as Atlantic cod toward polar latitudes ," says the German researcher . " The second factor , ocean acidification will increase significantly in the coming decades as predicted , and have substantial globally and in specific ecosystem impacts. The third key factor is related to oxygen deficiency and its impacts already noticed , for example, in coastal regions where the number of areas of extreme oxygen deficiency have increased significantly, " concludes Pörtner .
In the AR5 , scientists specify these factors with specific data collected and projections for the future highlighting the risks and costs to generate climate change, ahead of the Alfred Wegener Institute in a statement.
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