Heretics are sometimes right, but not every time. Few know that Manabe’s 1972 paper proposed a solution of reducing insolation to offset a doubling in carbon dioxide levels. And that could still work, but like the solution of carbon sequestration in topsoil, probably will not be done in time before tipping points are irreversibly triggered.

Dyson believed that, like Hari Seldon in the Foundation series, suppressing doom-saying would help bring about a desired future of galactic conquest for humanity.

It is worth noting that he engineered the firebombing of Berlin. The pattern of bombing was designed by him to start a kind of fire tornado to consume the city. With that experience, perhaps he knew something about the importance of influencing scientific opinion to steer things toward a desired end.

Edit: I was wrong on a few details (the firestorm was not in Berlin, it happened in Dresden and Hamburg; some of Manabe’s publications were published in 1971; and Dyson was not the only one to work on the firebombing math)