Earth Lost Half Its Trees to Humans

A new global census of all the trees on Earth estimates that more than 3 trillion call this "pale blue dot" home. The study is billed as the most accurate inventory of Earth's tree population to date, revealing that there are 3.04 trillion trees, which is roughly equivalent to 422 trees for every person on the planet. Researchers used satellite images, forest inventories and supercomputing technologies to calculate the number of trees on Earth.