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▲ rgmerk a day ago

I am aware of the need for carbon removal and (some) desalination, but 1000x-ing our energy production is ludicrous stuff. The waste heat from energy production on that scale would render Earth uninhabitable.

▲hdgvhicv a day ago | parent [-]

If you increase it 1000 fold it would still be less than 10% of the heat the sun provides.

▲rgmerk a day ago | parent [-]

That's incorrect. It's in the order of 25% of the heat reaching the Earth's surface, or maybe 35-40 watts of heat per square metre.

That's roughly ten times the warming effect of doubling CO2.

Now, I don't have a climate model handy to simulate this in detail but I would suggest "render the Earth uninhabitable" is a close enough approximation to the actual effects to suggest it's a terrible idea and anyone seriously proposing it should be laughed out of the room until they've done their homework.

▲hdgvhicv 20 hours ago | parent [-]

Total energy use by mankind is about 200,000 TWh a year

https://ourworldindata.org/energy-production-consumption

Most of that is lost in waste heat.

Total energy arriving on earth from the sun is about 1,500,000,000 TWh

https://smartstep.blog/how-much-solar-energy-hits-earth-per-...

7500 times higher