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Image number: 2444337

Runway collapsed following permafross thaw, Polychrome Pass, Denali NP, Alaska

© Robert Valarcher / Biosphoto

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following global warming the permafrost thaws, the track sags in certain places' high precision instruments record the movements of the ground, the height of the collapse and its filling can be seen on the difference between the two gray marks (photos 8 and 10), in 2019 the road was closed to road traffic on several occasions following torrential rains, alternatives exist, such as the construction of alternative roads but this would be very expensive and the works could last 1 to 2 years .... to be continued

Keywords

Environment / Hazard / Climate change / Global warming

Shot / Overview

Individual / Nobody

Earth's crust / Erosion / Talus scree

Environment / Biodiversity management / Environment management / Environment protection / National park

Environment / Biodiversity management / Environment management / Environment protection / Biosphere reserve

America / North America / United States of America / Western United States / Pacific States / Alaska / Denali (National Park)

Transport / Infrastructure / Track

Environment / Hazard / Climate change / Global warming / Ice melting

Science / Scientific research / Scientific instrument

Earth's crust / Erosion

Science / Meteorology / Meteorological phenomenon / Sky

Area / Low formation / Polar tundra / North american tundra

Area / Mountain

Landscape

Area / Ice-cold environment / Permafrost

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