I think every environmentalist is ecstatic to see the Obama Administration pull back on approving the Keystone XL pipeline, ordering it back into review at the State Department. Essentially, the pressure from environmentalists (and from factions within the Occupy movement, which helped publicize this) became too great. The key issue was that the pipeline was slated to go through the Sand Hills of Nebraska, a unique ecosystem. Bill McKibben says that this basically kills the pipeline. While that sounds optimistic to me, no one knows about these issues than McKibben, so I’ll take his word that this is a gigantic victory against environmental degradation and against dirty energy.