Oldest human impact on Earth's surface 11,500 yrs ago: Study
The oldest known evidence of man-made impact on Earth's surface is from 11,500 years ago, as per an Israel-based study from a drilling project at the Dead Sea, world's saltiest lake. "Natural vegetation was replaced by crops, animals were domesticated...resulting in intensified erosion of surface and increased sedimentation, which we discovered in the Dead Sea core sample," said study lead.