Has anybody noticed that Sarah Palin and Joe Romm are walking hand in hand across a certain bridge? To be fair, many environmentalists and progressives are suddenly scrambling aboard this bridge too. Those in the West who have endured the latest drilling boom must find the bi-partisan lovefest for shale gas a bit jarring. Strangely, few on the left have commented on the unconventional (gas) bedfellows. Out in Colorado, though, where the carbon footprint of America's energy colony is measured differently, the union between the "Drill, Baby, Drill" crowd and prominent climate advocates has not gone unnoticed.