Obama turns up heat on climate change debate in Florida

President Barack Obama will venture into the South Florida Everglades on Wednesday to lend urgency to his environmental agenda, declaring the dangers of climate change an imminent threat to the state's economy.

But even before he arrived to the grassy 1.5 million acre wetland, Republicans were dismissing the visit as a stunt meant to promote policies they claim are job killers.

The trip comes after a flurry