What exactly have 97% percent of scientist agreed with? That climate change is occurring and it is likely that man is playing some role? Ok great. But that does not mean that most scientist believe in the fear-mongering or the polices being pushed will accomplish anything.
Yes. Technically it's not 97% of scientists; it's 97% of the roughly 4,000 papers in peer-reviewed journals that took a position one way or the other on the issue. Of those papers, 97% took the position that global warming is occurring and that human activity is contributing to it. (It is sometimes reported as 97% believe that humans are the
main cause; but that's not correct. The 97% is "are contributing to.")
This is why it's kind of silly, IMO, to look at the last 10 years and say "Oh, look, no more global warming!" Or to say that all those climate scientists don't understand the sun or the ocean or whatever.
The climate scientists are not stupid. They know about the sun and the ocean. They know about the last 10 years. And yet 97% of the published research still says that global warming is occurring and that human activity is contributing to it.
Lay people who want to go against the grain probably shouldn't challenge the 97%. They don't know enough. (Experts are welcome to challenge it.) Lay people should instead point out that "humans are contributing to global warming" does not necessarily portend doom, and is not necessarily grounds for switching from fossil fuels to solar energy, etc. The public policy implications are really complicated, and there is no widespread consensus among experts about any specific policy recommendation, so far as I know. There's plenty of room for reasonable debate there.
Challenging the true scientific consensus, however -- that global warming is occurring and humans are contributing to it -- is removing yourself from any reasonable debate, IMO.