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A third of North America’s birds have vanished
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#743Earlier quoted context omitted.
Producing solar panels requires an advanced technical civilization being in place. You cannot jump from middle ages tech to producing solar panels with skipping dependence on fossil fuels in the intermediate steps.
A tree is a solar panel and battery storage all in one.
We've been using them in pre-industrial times. Their energy output was not high enough to start industrial revolution.
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Re: A third of North America’s birds have vanished
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