Is a Carbon Tax in our future?

So other than raising personal income taxes what does Obama have a mandate for? Does anyone remember a discussion about carbon taxes during the campaign? Of course, during the 2008 campaign Obama promised to cut spending and then claimed a mandate to massively increase spending. Now we have this vague warning being floated.

Barack Obama may consider introducing a tax on carbon emissions to help cut the U.S. budget deficit after winning a second term as president, according to HSBC Holdings Plc. . . .