alt Hacker NewsThen basically every form of energy humanity uses except nuclear is from the sun. Oil is also plant- and animal-based if you go back far enough.
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bitmasher9 • today at 2:14 PM
Where did the uranium come from? My assumption is it’s supernova ejection, so it comes from a different star.
zahlman • today at 9:25 AM
Not to mention, the point of using "solar energy" as we normally conceive of it is to avoid CO2 emissions, but humans exhale CO2.
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Geothermal energy and tidal power don’t come from the sun either. Hydroelectricity is half sun (evaporation) half Earth’s gravity. (Well, one could argue that without the sun we wouldn’t have liquid oceans.)