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Ozark Grasslands Experience Major Increase In Trees And Shrubs（图）
Ozark Grasslands Major Increase Trees Shrubs
2017/10/24
Woody vegetation, such as trees and shrubs, has increased dramatically in Ozark grasslands over the past 75 years, according to a study published this week in the journal Landscape Ecology.The study e...
Researchers show major increase in CO2 emissions
CO2 emissions the world's natural 'sinks' carbon
2009/12/15
A rise in atmospheric CO2 emissions continues to outstrip the ability of the world's natural 'sinks' to absorb carbon, according to academics from the University of Sheffield, who have proved this usi...