Romney: 'the world is getting warmer...'
``I believe the world is getting warmer, and I believe that humans have contributed to that,'' he told a crowd of about 200 at a town hall meeting in Manchester, New Hampshire.
Sen. John McCain is tackling climate change this week, beginning his tour at a wind turbine factory in Portland, Oregon where he pushed for free-market solutions to climate change through a cap-and-trade system, calling the evidence for global warming too overwhelming to dispute.