The Boston Globe

John McCain and Barack Obama pledged yesterday to tackle global warming and to end deaths from malaria, and tied fighting global poverty to national security.

While some in his own party, including running mate Sarah Palin, have expressed doubts about the human role in fueling climate change, McCain expressed no such doubts in a speech at Bill Clinton’s Global Initiative conference in New York. “Over time, we must shift our entire energy economy toward a sustainable mix of new and cleaner power sources,” he said.