Trees are so common that it’s easy to assume no one has ever counted them. Surprisingly, scientists have. While no one has physically counted every trunk and branch, researchers have combined ...

There are more than three trillion trees worldwide, but that’s only half as many as were around at the start of human civilisation, according to new research. The study, published today in Nature, ...

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 ...