How Many Trees Are In The World. 12,000 years ago, before the advent of agriculture, earth had twice as many trees as it does now. The answer is that the world is home to over three trillion trees—with almost half of them living in tropical or subtropical forests.

And every second we are loosing 0.76 hectar tree land :/.

The number of trees in the world has been histor. Based on this approach, the world's overall tree leader is clearly russia, with 642 billion total trees, followed by canada with 318 billion and brazil if you said to me, okay, the gdp per capita of costa rica is $8,000, i would have no way of telling you how many trees there are in costa rica or how. But, despite the plant's importance, humans have had little idea how many trees actually live on planet earth. There are roughly 400 trees for every human.