Main Question or Discussion Point
Could heat from inside the Earth be causing global warming? If more heat was rising from the ocean floors would we notice - particularly if it was only happening in a few small areas?
Does the earth’s interior make an overwhelming contribution to the surface temperature?
This claim seems to be contradicted by the fact that it is warmer in daytime. And in summer. And closer to the equator. It takes a rare kind of talent to present an argument on climate change that is inconsistent with the existence of seasons.
Scientists have extensively measured the flow of heat from inside the earth—it amounts to 0.075 Watts per square metre, while incoming solar radiation is 342 Watts per square metre, about 5000 times as much. Hissink is correct that heat from the earth is not included in climate models—but that is because it is negligible.