The last two presidents to lose a re-election campaign were Jimmy Carter and George H.W. Bush. This cycle, Romney is trying to lump Obama in with them. Regardless of his fundraising and campaign spending, the GOP hopeful seems to be facing an uphill battle that is being ignored elsewhere as Obama's approval rating is climbing.

Credit: eia.gov

U.S. emissions have dropped 7.7% since 2006 due to the rapid switch from coal to shale gas.  All this cheap gas came from a concerted, public-private effort dating back to the mid-1970s to cheaply extract gas from shale. There is a clear lesson for those concerned about global warming: seek public-private investments in technological innovation to make clean energy cheap.