Gallery, Video, Story: Vietnam Tree Coring Expedition: Unlocking Climate History in Trees

Kevin Anchukaitis, postdoctoral research fellow at the Lamont-Doherty Earth Observatory's Tree Ring Laboratory, left, listens with mobil ranger team leader Cao Minh Tri, as Le Canh Nam, right, discusses a core sample from a fokienia tree. The Vietnamese rangers and researchers are essential to the success of work done by the tree ring scientists providing logistical support and intimate knowledge of the forest and its environs.