Scientists study effects of rising carbon dioxide on rangelands

Rising carbon dioxide (CO2) levels can reverse the drying effects of predicted higher temperatures on semi-arid rangelands, according to a study published today in the scientific journal Nature by a team of U.S. Department ...

Increase in CO2 has not stimulated growth of tropical trees

Since the start of the industrial revolution in 1850, atmospheric CO2 levels have increased by about 40%. However, contrary to expectations, the growth of tropical trees has not increased as a result. The prediction that ...

Human activity pulling the plug on a vital carbon sink

(PhysOrg.com) -- Under better conditions coastal ecosystems might be the ace in the hole to mitigate climate change, but human activity is significantly weakening their ability to naturally dampen the impacts of rising CO2 ...

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