Letter from dwindling band of climate fraudsters

Scientists tell Congress that warming evidence is 'overwhelming' - The Hill's E2-Wire

Twenty-five U.S. scientists issued an open letter [PDF] to Congress today that calls evidence of human-induced global warming "overwhelming" and accuses opponents of emissions curbs of misrepresenting emails among climate scientists hacked from a U.K. research institute.
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"Even without including analyses from the U.K. research center from which the emails were stolen, the body of evidence underlying our understanding of human-caused global warming remains robust," they write.

Note that the letter is signed by ClimateGate scientist Ben Santer!

1.  We were constantly told about an alleged "consensus" from 2,500 climate scientists.  Why are there only 25 actual names on this list?

2.  When people claim that the evidence is overwhelming, why don't they ever tell us specifically what that evidence is?