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May : A sink down under

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28 May, 2014

A sink down under

by Daniel B. Metcalfe

A sink down under


The steady increase in atmospheric carbon dioxide, which is the main driver of global climate change, has fortunately been slowed by a simultaneous rise in CO2 absorption by land plants, termed the land CO2 sink1. However, exactly where and why this land sink is occurring has been uncertain. The main player had been thought to be tropical rainforest2. But in a paper published on Nature's website today, Poulter et al.3 draw together several lines of evidence to show that this situation may be changing, with vegetation across semi-arid ecosystems in the Southern Hemisphere taking centre stage as a driver of variations in atmospheric CO2 levels.

Read the full article here : A sink down under

Download the following article :
Contribution of semi-arid ecosystems to interannual
variability of the global carbon cycle



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