Those who oppose oil and natural gas development in the Arctic have yet another reason to protest: the permafrost that is so critical to the infrastructure of the Mackenzie Valley Pipeline project seems to be crumbling away, the warming, formerly solidly frozen layers melting, altering the stability of the very land that would support gas pipelines across the Canadian countryside. The $6 billion project has been on hold for years and it looks like the controversy over it hasn’t died down a bit in all that time. more »