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But then you will need the space freed from agriculture for the solar energy production, instead of forests? In the end, isn't a field of corn a massive solar energy plant?

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A real improvement would be to reduce the amount of grain we need to produce. Cutting down on beef consumption would have a huge impact.

But not nearly as much land would be required, if Nebraska was covered with solar panels, that would be enough for the world:

https://www.wolframalpha.com/input/?i=200+W%2Fm%5E2+*+area+o...

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