While I support the idea that global warming could lead to unwanted climate change, I know its true that many scientists are over-zealous in their attempts to "proove" it, because of the high political stakes involved.
While I will tend to believe the general consensus of the peer-reviewed scientific community, I remain skeptical of overly specific claims that are based on scientific approximations or generalizations.
A perfect example is the prediction about Himalayan glaciers melting. Climate models are still so primitive, that its impossible to be sure about specific predictions based upon the general "global warming" hypothesis.
When the Spurs lose...it makes Baby Jesus cry