Permafrost loss, flooding and giant underground landslides known as “frozen debris lobes” are three of the biggest concerns.
Question: How is the Haul Road being impacted by climate change? What happened to that “tidal wave” of melted permafrost that was rolling towards the Dalton Hwy a few years ago?
The main user constituency is the hundreds of trucks hauling materials to the oil fields that rumble up and down the pavement-and-gravel everyday, making the highway a vital economic link for Alaska. “The long term trend is pretty clear: Over the next half-century there’s no doubt that more and more of the area south of the will have continued degrading permafrost and in some areas, the loss of permafrost,” said Thoman.Associate professor Margaret Darrow pauses as she hikes down one of a series of frozen debris lobes which have appeared along the Deitrich River valley in the southern Brooks Range about 225 miles north of Fairbanks.
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