Just because they talk as if they believe the scientists are stupid, doesn't mean at all, that this is what they actually believe. But just think of aaaaaaall the money, money, money that a lot of people stand to lose if Global Warming is ever taken seriously enough that we feel obliged to make all of the changes in our lifestyles that we would logically have to make in order to halt it.
Big companies are making enormous profits manufacturing and selling to the public uncountable products that pollute our environment, thus ultimately our upper atmosphere. The public wants clean air, clean environment, and beautiful healthy planet --- wonderful, if all we needed to do was push "the Easy Button". But there's no Easy Button for this one. It means once we acknowledge that we have to do something, we have to do it, and that means making some truly big changes to our lives. Those who are making big money from the Public, persuading them to use the very products that are part of the problem, are not going to raise a little finger to encourage the public to stop buying those products, now are they? Frankly, the Public is not going to do it by sheer willpower, individual by individual. Somebody is going to have to paint the Public a truly dramatic picture of the consequences on down the road, telling them "This is what life is going to be like for your children, grandchildren and great grandchildren if you don't make changes now. The Scientists are trying to do this, and that means those who stand to face heavy material losses if the Scientists succeed in getting their message across, are obviously going to do everything possible to stop them. What better way to do that than by totally discrediting those Scientists by calling them lunatics and scaremongers.
I can remember - I don't know if you're old enough to - back when Scientists were first trying to raise awareness of the newly discovered, very clear direct link between smoking tobacco products and cancer, particularly lung cancer. The big Tobacco Companies banded together in a ferocious "anti-science" campaign.... putting out alleged results of research studies of their own which on the face of it refuted everything the Scientists were trying to tell us.
But in time some startling facts began to leak out from whistleblowers who had worked in these tobacco processing plants and produced evidence that the Companies were engaged in the most blatant and atrocious cover-up of things they already had known for a long time about the very real dangers of tobacco.
But it would be a very long road, and the Scientists could do little more than keep on plugging away, producing their own evidence and attempting to get serious recognition of a situation that w as leading to the health damage and deaths of hundreds of thousands of people. Meanwhile, the Tobacco Companies were continuing to do what Big Business is doing today in another arena. Trying to completely discredit the Scientists, calling them loonies and their researches "Junk Science"
The battle lines have been drawn now on the Global Warming issue, and for years to come we are going to be seeing the exact same thing as we did in the time of the Tobacco "Wars".... A battle between Industrial Giants and Scientists for the attention and the trust of the Public. I know the scientists will win in the end, by the same process of atrition. But it will be a long battle and an exhausting one. It will take a sudden dramatic, glaring piece of clear, undeniable, irrefutable, incontrovertible, unarguable proof supporting one side or the other, to cut that war short, and cause the public to declare that side the winner.