Trees are home to all sorts of critters: birds, squirrels, frogs and more than a trillion teeny tiny microbes living in roots, bark and leaves. These fungi, bacteria and microorganisms play an ...

Scientists have found that a single tree can be home to a trillion microbial cells — an invisible ecosystem that is only beginning to be understood. A black oak in the Yale-Myers Forest of northern ...

New studies raise issues that complicate the ambitious goals to use mass tree-planting to fight climate change. The researchers warn that in some cases, carbon-offset tree plantations could reduce ...