cosmos
21st November 2016 at 11:32am
https://www.wikiwand.com/en/Environmental_studies
"It's mainly because people haven't been cutting down nearly as much wood for fuel, plus there have been concerted efforts to manage and regrow forests. Also some of the areas have been regrowing after the World Wars made them less suitable for farmland." ~Laurie
https://www.wikiwand.com/en/Environmental_studies
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