ucodegen,
Peiser’s letters were rejected by the editors of Science for good reason. Peiser has conceeded that his survey contained some errors, and he no longer doubts that “an overwhelming majority of climatologists is agreed that the current warming period is mostly due to human impact. However, this majority consensus is far from unanimous.”

I pulled this from 5 minutes of research on Wikipedia, btw.

Sdnative,
I don’t have to provide any valid arguments for Climate Change. The science is in. It might not be unaimous, but there’s concensus, and that’s all that is needed within the scientific community. It is like when you go to the doctor. He doesn’t have all the answers, but he’s pretty sure, based on consensus and scientific study that if you overeat, and don’t exercise, you are setting yourself up for a heart attack. It’s not proven that all fat people will die of heart attacks, but there is consensus that it’s bad to be overweight.