Boston Globe: Almost all of the Republican presidential candidates are skeptical of the idea that climate change is occurring, humans have a contributing role, and something should be done to reverse it. Here's a look at their past public statements.
JEB BUSH
"The climate is changing. I don't think the science is clear of what percentage is man-made and what percentage is natural. It's convoluted. And for the people to say the science is decided on this is just really arrogant, to be honest with you. It's...