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Earth now has more than 3tn trees
03 Sep 2015 16:04
The number of trees on Earth has almost halved since the beginning of human civilisation, a new assessment has found.
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There are more than three trillion trees worldwide - around eight times more than some previous estimates - according to the study led by researchers at Yale University in the US.
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But around 15 billion trees are currently being lost each year as a result of deforestation, forest management and changes in land use, the research published in the journal Nature showed.
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Since the start of human civilisation around 11,700 years ago the total number of trees has fallen by around 46%, it estimates.
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