If you think there is little difference between someone who does not believe the climate is changing and someone who can well believe it is (that's what the climate does), but isn't entirely convinced it's man-made there's not much I can do about that. Funnily enough AI returned the following on the Stefan-Boltzmann law: The Stefan-Boltzmann law is a fundamental physical law that helps explain Earth's energy balance, but it doesn't account for the greenhouse effect, which is a key part of the climate system Anyway, I was pleased to have this pointer, and intend to look more thoroughly in to this life/fence permitting. BTW, I do not think ad hominim attacks are the way to bring someone over to your way of thinking. Cheers.