The statement "if humans didn't cause the warming, than obviously changing what humans do can't possibly stop it" is often behind the question. And on the flip

The statement "if humans didn't cause the warming, than obviously changing what humans do can't possibly stop it" is often behind the question. And on the flip side, scientists advocating that humans change their behavior wish to show that the suggested actions will make an actual difference. Because, you know, proof and ethics and all that.