Trekking Tourism Leaves a Microplastic Footprint in a High Himalayan Lake

Tilicho Lake, situated at an altitude of 4,917 meters (16,132 feet) in the Nepalese Himalayas, may appear pristine, but new research shows it contains a significant amount of microplastic pollution. Credit: Mark Horrell/Flickr, CC BY-NC-SA 2.0