Study: Earth has three trillion trees

A 15-nation team of experts used a combination of old-fashioned headcounts and state-of-the-art satellite and supercomputer technology to produce what they claim is the most comprehensive tree census ever. -AFP

BONN: There are about three trillion trees on Earth, roughly 422 for every person and eight times more than previously estimated, researchers said Wednesday, admitting surprise.

A 15-nation team led by Yale University experts used a combination of old-fashioned headcounts and state-of-the-art satellite and supercomputer technology to produce what they claim is the most comprehensive tree census ever.