4 ms·
Sure, that is probably one of the most brillant idea to fight earth warming...
by greatgib 3y ago
Sure, that is probably one of the most brillant idea to fight earth warming...
- jacob019 3y agoMy first thought as well. I think it's the phrasing of the title. Although if we could beam in energy at high efficiency instead of pulling it from the ground at low efficiency it would probably be a net improvement. Now let's talk about beaming waste heat into space.
- wiml 3y agoI assume you're being sarcastic, in which case maybe you don't understand how global warming works. The overall solar energy flux to the Earth is huge — around 170 exawatts — almost all of which gets re-radiated into space. CO2 and other greenhouse gases affect how well the earth can radiate waste heat. If we were to replace all human energy generation with off-planet beamed energy, this would increase the influx by something like 0.01%; that won't change the equilibrium point much (remember the S·B law is fourth power). In contrast, the CO2 generated by fossil fuel use changes the earth's emissivity, which does have noticeable effect on the equilibrium point.