Whether you call it global warming or climate change, a new poll says the number of people who believe it's caused by pollution is falling.

The Pew Research Center for People and the Press found that 57 percent believe there is strong scientific evidence that the earth is warming -- down from 71 percent in April of 2008 and 77 percent in 2006.

So what do you think about global warming and climate change?

Step Inside the Box and have your say.

Photo credit: Jupiter Images