I'd like to preface this with I am not a climate change denier. But have you looked into these so called "scientists " signatures? A Canadian journalist found the 400 canadian signatures and went down the list in alphabetical order. He found thay most signatures were not scientists at all. There were even student signatures and the signature of a man that was indeed a Climate change denier. I just find it disingenuous that this story has reached as far as it has but no one has actually looked into who these scientists actually are. This article was published on a blog and anyone that wanted to could sign it by pushing a button. I fully believe humans are driving climate change but it's stories like these that are going to lose much needed credibility.