Previous estimates had the number of trees in the world at around 400 billion, but a new study proves otherwise that the actual number of trees Earth has at present is about eight times that number.

Earth Has 3 Trillion Trees; New Study Updates Figure to Aid Future Research Projects : Science : University Herald: http://www.universityherald.com/articles/23163/20150903/earth-has-3-tril...

Global count reaches 3 trillion trees http://www.nature.com/news/global-count-reaches-3-trillion-trees-1.18287

BBC News - Earth's trees number 'three trillion' http://www.bbc.com/news/science-environment-34134366

How scientists found out there are three trillion trees — and that we’re losing billions per year https://www.rawstory.com/2015/09/how-scientists-found-out-there-are-thre...

The Earth has 3 trillion trees, study finds @CNN http://cnn.it/1Qdz6gM

How many trees are there in the world? https://youtu.be/jqdOkXQngw8 via @YouTube

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