The scientific community disagrees about
a. the rate of global climate change
b. the occurrence of global warming
c. the need for action
d. all of the above

The scientific community is actually very synchronized about the rate of global climate change, the actual occurence of global warming in general, and the need for action. So it's not really true that they disagree on it. Politicians represent the group of people who very opposing views which aren't based in science.

Iam not sure sorry