Clinton Urges Energy Efficiency

Former President Clinton said Sunday that he favored presumptive Democratic presidential nominee Barack Obama's position on cutting greenhouse gas emissions, though he noted that John McCain's stand on those cuts improved on Republicans in the past.

Obama has supported cutting carbon dioxide emissions by 80 percent by 2050, a position the Illinois senator shared with Clinton's wife when she was running for president.

McCain, the likely GOP presidential nominee, has announced a less ambitious plan to cut those emissions 60 percent by 2050.