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'Feel good' factor not CO2 boosts global forest expansion
By Matt McGrath
Environment correspondent
15 May 2018
Forests are increasing around the world because of rising incomes and an improved sense of national wellbeing say researchers.
The authors refute the idea that increasing levels of CO2 in the atmosphere are the key cause of the spread of trees.
As countries become better off, farmers focus on good quality soils and abandon marginal lands, the authors say.
As a result, trees are able to rapidly reforest these deserted areas.
More:
http://www.bbc.com/news/science-environment-44113494
