It goes to credibility. Besides, it has not been proven that climate change is necessarily a bad thing or that there have not been periods of warming and cooling in the past. Why do we assume that just because we're arguably the dominant species on the planet that we should be exempt from having to adapt to changes in the environment instead of trying to force the environment to adapt to us?

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A panda walks into a cafe. He orders a sandwich, eats it, then draws a gun and fires two shots in the air.

"Why?" asks the confused waiter, as the panda makes toward the exit. The panda produces a badly punctuated wildlife manual and tosses it over his shoulder.

"I'm a panda," he says at the door. "Look it up."

The waiter turns to the relevant entry and, sure enough, finds an explanation.

"Panda. Large black-and-white bear-like mammal, native to China. Eats, shoots and leaves."