If the vast majority of the scientists were conservative I would still believe them. It's more about the sheer number of scientists that believe one thing rather than the other.
The earth is the center of the Universe.
The Earth is flat.
It'll never fly, Orville.
You cannot go faster than sound.
You can fill volumes with the things which at one time were thought to be so, but were not.
As I have said, many are the times when one man (or woman) stood against consensus and was correct.
Tens of thousands of scientists have decried the idea of forming public policy on the basis of this theory, especially since of late (last two decades), the data do not support the most basic premise, that any warming is occurring. Those who stand to make fortunes off the systematic destruction of the American Economy through ridiculous regulations and taxes (which will only make using fuels more expensive, not stop their use), are desperate to shove those regulations through before Americans wake up to the scam--and they are waking up to it.