@BillRM,
Bill,
Give me an example where a scientific consensus was wrong about something that they were "certain" about. By scientific consensus I mean statements from all of the major scientific institutions and agreement by more than 95% of scientists in the field.
It took science about 60 years to do the studies, take measurements, publish papers and reach this conclusion. But now we are here. Right now, you have urgent statements from every major reputable scientific organization, from NASA to the AAAS to APS, they are all on board.
We have now done the reasearch, the results are in, the verdict has been made.
The scientific community is stating, unequivocally, that human induced climate change is happening and is a real risk.
Sometimes it takes a while, but once the scientific community reaches this type of consensus and makes such a strong statement, it has always turned out to be right.