i trust the science less when it is used for political manipulation. also, regarding humans damaging the earth, i think we are always searching for evidence that people are hurting the precious earth. it makes us feel important. so the science gets skewed. i dont really think that humans can exist without being in a pretty much perpetual state of worry about what they are doing to the earth. at this point i always paraphrase voltaire. if there were no imminent human caused earth destruction, we would create one.