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Tweet An old volcanologist by the name of Peter Ward is holding forth at various places on his theory of everything.  Now Eli’s considered judgement is that, as Walter Hannah puts it "His Theory Is Garbage".  But as Ray Pierrehumbert said some garbage is more amusing than others, mostly because it exposes things that have to be explained to the naive, and occasionally because the mistake is subtle enough to deepen Eli’s own thoughts about this and that. Hannah (and Eli) spot the G&T, a common mistake amongst phenominologists  Greenhouse warming theory also assumes that the heated air radiates energy back to Earth’s surface, and that this return flow of heat energy warms Earth.