When he fails to buy into global warming alarmism.

At least that seems to be the point of a new Atlantic profile of physicist Freeman Dyson:

Among intelligent nonexperts who have weighed in on climate change,
Freeman Dyson has become, now that Michael Crichton is dead, perhaps our
most prominent global-warming skeptic. Charlie Rose began his interview
with questions about the climate. Dyson answered that he remained very
skeptical about the dangers of global warming. He did not believe the
pronouncements of the experts. He did not claim to be an expert himself,
so he would not argue the details with anybody; he had not given much
time to the issue and did not pretend to know the real answers, but what
he knew for sure was that the global-warming experts did not know the
answers, either.

Dyson did not deny that the world was getting warmer. What he
doubted was the models of the climatologists, and the grave consequences
they predicted, and the supposition that global warming is bad. ?I went
to Greenland myself, where the warming is most extreme,? he said. ?And
it?s quite spectacular, of course, what you see in Greenland. But what
is also true is, the people there love it. The people there hope it
continues. It makes their lives a lot more pleasant.?

Oh, the horror. There’s no hope for the man. We’ll have to stick him in a padded room with Richard Lindzen, Roy Spencer, and Pat Michaels.