I expect "experts" to produce hard results that verify their status as experts. Otherwise, it starts to resemble theology. It looks similar to economists who can't play the stock market or psychologists who can't predict parolee behavior above common sense.
I see two broad dangers in climate exaggerations. First, they may be pushing nations towards more development of nuclear energy - which may be dangerous, long term. Secondly, the legitimate concern over climate appears to be hyped up above other threats to humans. I'm more worried about vanishing bees and the fact that the Western world has lost a widely agreed upon program for economic growth. Keynesian ideas have failed leaving us open to war, scarcity and hopelessness. The otherwise noble trend towards renewables makes this lack worse as high paying jobs with fossil fuels are replaced by temp positions.
