In a culture obsessed with competition, it comes as no surprise that even our trees have been put to the test. In honor of Earth Month, celebrated every April, this series documents a handful of ...

According to Rena, spring is the time for planting. “We’re absolutely in the thick of our busiest season,” she says.

In a new study, researchers used more than 5 million measurements from individual trees across much of eastern North America and showed the rate at which introduced species are spreading has increased ...

Iceland, the land of ice and fire, is for geologists what the tropics are for ecologists: an opportunity for an unparalleled ...