Tourists in Denali Park in Alaska are obliged to carry feces with them. The melting of the glacier has already exposed 66 tons of excrement of previous visitors.

Denali National Park is home to the Kahiltna Glacier, which due to rising global temperatures

gradually melts. As a result of this process, about 66 metric tons of waste has already appeared on the surface of the glacier, most of which is waste from park visitors.

Melting waste releases bacteria and microorganisms that gradually end up in the Bering Sea off the coast of Alaska.

Since the beginning of 2019, six out of nine companieswho organize recreation in the national park, give tourists reusable toilets for five to seven uses. The filled container weighs about 7 kg - all visitors of the park and even climbers who climb Denali mountain have to carry it with them.

Earlier, scientists from the Federal Institute of Forest, Snow and Landscape (WSL) of Switzerland recorded that permafrost began to thaw in the Alps. The layer of thawed permafrost reached 4.8 m in depth.