When I start to feel overwhelmed by the caterwauling chorus of those experts that seem to have taken on the cause of global warming with the fervour of a snake handling tent preacher there is some solace to be found in the well reasoned even tempered heresies of Freeman Dyson.
For a small dose of thoughtfulness scroll down to "The Third Culture"
http://www.edge.org/documents/archiv...19.html#dysonf