There are all kinds of scientists, from chemists to nuclear physicists to people who study insects, volcanoes, and endocrine glands -- none of whom is an expert on weather or climate, but all of whom can be listed as scientists, to impress people who don't scrutinize the list any further. That ploy has already been used.
Then there are genuine scientific experts on weather and climate. The National Academy of Sciences came out with a report on global warming back in 2001 with a very distinguished list of such experts listed. The problem is that not one of those very distinguished scientists actually wrote the report -- or even saw it before it was published.
One of those very distinguished climate scientists -- Richard S. Lindzen of MIT -- publicly repudiated the conclusions of that report, even though his name had been among those used as window dressing on the report. But the media may not have told you that.
In short, there has been a full court press to convince the public that "everybody knows" that a catastrophic global warming looms over us, that human beings are the cause of it, and that the only solution is to turn more money and power over to the government to stop us from our dangerous ways of living.
Among the climate experts who are not part of that "everybody" are not only Professor Lindzen but also Fred Singer and Dennis Avery, whose book "Unstoppable Global Warming: Every 1500 Years," punctures the hot air balloon of the global warming crusaders. So does the book "Shattered Consensus," edited by Patrick J. Michaels, professor of environmental sciences at the University of Virginia, which contains essays by others who are not part of "everybody."