Most accurate count to date is over seven times as many as the final estimate – but nearly half have been cut down since the start of civilisation,say scientistsScientists have already calculated how many fish there are in the sea (230000 species), and how many species there are on the planet overall (8.7m). Now they have had a crack at counting all of the world’s trees.
Using a combination of satellite and ground measurements, or researchers estimated that there are just over 3tn trees on the planet,over seven times as many as the current, non peer-reviewed reckoning that relied on satellite images alone.
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Source: theguardian.com