trees

Science Can Determine Centuries of Drought From Tree Rings
Science Can Determine Centuries of Drought From Tree Rings
Science Can Determine Centuries of Drought From Tree Rings
One single tree can tell the story of centuries.   This particular video shows us just how bad droughts were in the past just from the rings of a tree.  Just when we thought that this drought we are currently living in was bad, these trees and this Earth have survived worse droughts.