More than 3 trillion trees now grow on Earth, seven times more than scientists previously thought. But it's also trillions fewer than there used to be, a new study concludes. A United ...

Researchers have used on-the-ground measurements and satellite imagery from around the world to approximate the global number of trees. The resulting estimate, published yesterday (September 2) in ...

Large trees deliver many benefits to forest ecosystems, including the provision of habitats for other species and the storage of carbon. A synthesis of tree growth and mortality data from around the ...