It's rare that you have such a direct statement like you see in Ghostbusters :-) Generally there is reliance on the halo effect -- "Here is the problem and this is what should be done about it" implies that if you are an expert in the problem, you are also an expert in solutions to that problem.
Here are a couple of Hansen examples. Notice that in the first one he is very direct about what should be done, while in the second he is arguing against the Iowa coal plant explicitly as a scientist.
Of course most of these people are not stupid. No one claims "the right to prescribe policy".
Imagine that someone is an expert climate scientist, thinks that anthropogenic climate change is a big problem, and has strong opinions about what should be done about it. How, in your view, can they go about agitating for the action they think should be taken, without doing anything you would characterize as "I am a climate scientist, therefore my ideas about economics and politics should be immediately implemented because science"?
...It's rare that you have such a direct statement [...] Generally there is reliance on the halo effect [...] No one
Another month, another rationality quotes thread. The rules are: