honestly you don't attain those positions without knowing just a little bit about the topic. No.1 was head of research at the European Centre for medium range weather forecasts and then founded the department of theoretical climate modelling and participated in their development. So I suspect he is a little bit known in the field.
No.2 is another loser. He developed the first successful satellite temperature record in collaboration with another scientist. Here is what Wilki has to say: He was appointed
Alabama's state climatologist in 2000. For his development of a global temperature
data set from satellites, he was awarded
NASA's Medal for Exceptional Scientific Achievement and the
American Meteorological Society's "Special Award."</a> In 2002, Christy was elected
Fellow of the American Meteorological Society.
No.3 Roy Spencer He was the other half of the Satellite development. Again from wilki. He is a principal research scientist at the
University of Alabama in Huntsville, and the U.S. Science Team leader for the Advanced Microwave Scanning Radiometer (AMSR-E) on NASA's
Aqua satellite. He has served as senior scientist for climate studies at NASA's
Marshall Space Flight Center. His position on AGW is simply that there is some but it isn't worth worrying about and has written several books on the subject.
No.4 Judith A. Curry She is an interesting case. She is very well known and she does believe in AGW and, if the worst case scenario were to come to pass it would be bad indeed but she questions the immediacy of of the problem and is firmly opposed to our current efforts. She is no loser.
No.5 Richard S. Lindzen I can't begin to list this fellows achievements. He has published over 200 times as of 2010 on topics I can't begin to understand. He taught at both Harvard and MIT and is totally opposed to all the climate change stuff.
No.6 Nir J. Shaviv is an astrophysicist and is very well known in that field. His observations have led him to maintain that warming is primarily a result of the sun and its rays. He has written a bunch of stuff as welll so all of them are known and all of them, including Judith were highly respected scientists in their field. Mann didn't like her very much but that certainly isn't a vote against anyone.
The problem with my experts is they publish stuff that you don't agree with and thus you insult them and their careers without knowing anything at all about them. Now this whole thing is a long way removed from the topic so I am going to cease my participation here with a hearty apology to the mods who have been very patient. ciao