CLIMATE: STATES NOW FACED WITH REAL-WORLD CONSTRAINTS

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KOUMBA Jerome

by Jerome KOUMBA

2015-12-20
 
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Climate change is as old as the Earth itself. But current global warming is different because of its scope and speed, making   it truly extraordinary. Even though temperature changes will not occur uniformly over the whole planet, the salient features are well known: rising sea levels, less snow cover, melting glaciers, Arctic warming, shrinking permafrost regions, changing seasonal patterns, etc.

Over the last 10,000 years, the quantity of greenhouse gases present in the atmosphere has remained relatively constant. This has enabled the Earth to maintain a fairly stable climate. The concentration of these gases started to grow with the advent of industrialisation, increased energy demand, population growth and land use change. By the end of the 21st century, an increase of 1 to 3.5 degrees Celsius is expected in the Earth’s average surface temperature compared to  1990.

 

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