Actually, scientists have a huge incentive to overthrow an existing regime if it's bad but nobody knows it yet. It will make your career if you are able to prov

Actually, scientists have a huge incentive to overthrow an existing regime if it's bad but nobody knows it yet. It will make your career if you are able to prove it. The evidence required is high if what you're trying to disprove is well supported, but if you can provide that evidence there will be a wellspring of PhD students ready to ride that wave and build their careers. For climate deniers, the evidence just isn't there. There's no wave to ride.