27 Oct '14, 1pm

How do trees change the climate?

How do trees change the climate?

While changes in temperature caused by changes in CO2 occur evenly across the globe, the same is not true for those driven by changes in albedo or water fluxes. These are local affects, concentrated near the place where the change in tree cover has occurred. But if we plant trees all in one area, and that causes a region of heating or cooling, the atmosphere can respond by changing it’s circulation – and that might have further climate effects in places far away from where the trees were planted. This can even happen on a global scale. Significant changes in tree cover in Eurasia could cause an energy imbalance between the Northern and Southern Hemispheres, shifting the entire global circulation of the atmosphere, including the location of rainfall in the tropics. And changes in where it rains in the tropics would impact plants there, and how they are controlling their loc...

Full article: http://www.realclimate.org/index.php/archives/2014/10/how...

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