Trees curb the effects of global warming
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Scientists have seen how trees curb the effects of global warming
There is a zone in the United States that has miraculously remained unaffected by global warming. New study showed that the main cause of this anomaly was extensive reforestation in much of the eastern part of the country.
Since the beginning of US colonial history, there has been a boom in deforestation for agriculture and housing, but this began to change around the 1920s as more people moved to cities. Then the US government began an active tree planting program, thanks to which about 15 million hectares of forests were restored in the east of the country in the last century.
Reforestation in the eastern United States has mitigated global warming, largely through the process of tree transpiration, in which water is taken up by the roots, rises to the leaves, and evaporates into the atmosphere, slightly cooling the environment.
Examining data from satellites and weather stations in the eastern United States from 1900 to 2000, scientists found that reforested areas had significant cooling effects over wide areas, with most of the effect occurring within a 400-meter radius of the trees.
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