Obama tells DiCaprio, 'We're really in a race against time' on climate

Capping a day-long futurist fair and alternative music fest on the South Lawn of the White House Monday, President Barack Obama told actor Leonardo DiCaprio and atmospheric scientist Katharine Hayhoe "we're really in a race against time" to curb the worst impacts of climate change.

The hour-long panel discussion, which was immediately followed the U.S.…