@Thomas,
Quote:Let me ask you a question about that. Suppose you're talking to members of the general public who don't care for evidence and logic in their own right. Why would such people defer to the authority of a consensus of people who in turn derived their authority from evidence and logic? If the direct argument from evidence and logic doesn't work, why would the detour work better?
That is a very good question, Thomas. But the fact is
the detour does work.
The great majority of people who believe in Climate Change do so based on the axiom "greenhouse gasses trap heat." This is an argument from authority. Go find your nearest non-scientist friend who believes that Climate change is real and ask them simple questions like ; "Why do global warming gasses trap heat?" or "What makes carbon dioxide a global warming gas while nitrogen is not?". They won't be able answer. Worse, the image that most people have about greenhouses give them a model of the atmosphere that is grossly incorrect (a glass skin over static air).
Most people who believe in climate change don't know the difference between convection and radiation. Most people who believe in climate change have never read a peer reviewed paper. Yet here we are. For most people, who don't have the resources or inclination to actually understand the science of climate change, argument by authority is all you have.
Should someone who has never read a peer reviewed paper, or done any math on data themselves, have an opinion about climate change?
Let's talk about another phenomenon, people who are liberal politically (I understand my terminology here is very US centric, but bear with me... I think it scales)....
People who who are liberal politically are far more likely to accept the science about global climate change. People who are conservative politically are far more likely to accept the science about GMOs. There are very few of them who ever do the work and study required to actually figure it out for themselves.
This suggests that human beings don't base opinions on logic and evidence, but rather on ideology and pre-existing beliefs. The institutions of science have tried to build in safeguards. They aren't perfect, but within science there is a far greater attempt for objective reasoning than we see in normal life.
This presents a problem; when scientists come up with a result that worries them (like global climate change), they have to do whatever they can to convince society at large that they are right... even though the society at large don't have the expertise or the patience to judge the science for themselves.
I don't have a good answer for this.