And that seems to be part of the problem: You just made a statement that is quickly proven false[0], which leads to further skepticism from these people.
[0]https://en.wikipedia.org/wiki/List_of_scientists_opposing_th...
https://en.wikipedia.org/wiki/Scientific_opinion_on_climate_...
I count eight people who seem to have worked in (broadly) related fields:
Timothy Ball, historical climatologist, and retired professor of geography at the University of Winnipeg
William Kininmonth, meteorologist, former Australian delegate to World Meteorological Organization Commission for Climatology
Anthony Lupo, professor of atmospheric science at the University of Missouri
Tim Patterson, paleoclimatologist and professor of geology at Carleton University in Canada.
Murry Salby, atmospheric scientist, former professor at Macquarie University and University of Colorado
Nir Shaviv, professor of physics focusing on astrophysics and climate science at the Hebrew University of Jerusalem
Roy Spencer, meteorologist; principal research scientist, University of Alabama in Huntsville
George H. Taylor, retired director of the Oregon Climate Service at Oregon State University
You could probably raid a single decent university and find more people working on understanding AGW better.This is the equivalent of saying "Zoologist X Somebody in University of North Carolina said there's no link between smoking and lung cancer!", and keeping smoking while having a lung cancer while ignoring mountains of research, except that it's not your own lung this time.
https://en.wikipedia.org/wiki/List_of_scientists_opposing_th...
What's more, the vast majority of their statements doubting an aspect of climate change are not even part the peer reviewed scientific literature. They are simply opinion statements. And they only found a couple dozen people to put on the list? Not a very strong showing..
All of this is found in the linked Wikipedia article itself.