With Warming, Peril Underlies Road to Alaska - NYTimes.com
- But today the Alcan faces challenges that could not have been predicted when it was built. By far the biggest is permafrost, the permanently frozen ground that underlies much of the road.As the climate warms, stretches of permafrost are no longer permanent. They are melting â€” leaving pavement with cracks, turning asphalt into washboard and otherwise threatening the stability of the road. ................But climate change is most worrisome of all. Not only is the world warming: it is warming fastest in high northern latitudes. And the problem is getting worse, with no easy solutions.
From X Isle