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> which itself yields no greenhouse gasses

Does anyone know how much of the atmosphere's heat comes from geothermal energy as opposed to solar radiation? By extracting geothermal energy we'd be increasing that effect in the short term, but would it even be significant?

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0.087 W/m^2. Compare to 340 W/m^2 insolation.

[] https://en.wikipedia.org/wiki/Earth%27s_energy_budget#Earth'...

Interesting stuff, particularly the estimation that 140 TW of solar radiation are captured by photosynthesis. In arguments about the efficacy of tree-planting as a climate control effort, I've heard about the effect on albedo radiation and of course on the sinking of CO2, but I've never heard it pointed out that photosynthesis itself captures solar radiation that would otherwise be reflected heat.

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