This May 21, 2019, photo provided by climber Dawa Steven Sherpa shows Camp Four, the highest camp on Mount Everest littered with abandoned tents. The record number of climbers on Mount Everest this season has left a cleanup crew grappling with how to clear away everything from abandoned tents to human waste that threatens drinking water. (Dawa Steven Sherpa/Asian Trekking via AP)
Featured Photo Galleries
