I feel like you're making definitive statements about technology that is still being developed. While they were developing gasoline and infrastructure for cities, they used lead in fuel and piping. Later on we found out that lead blunted the IQ of almost half the US population and we phased it out of the manufacturing process.
Solar technology, renewable fuels, and other alternative power sources are all in their development stages. I feel like it's a mistake to assume manufacturing issues can't be resolved or that there are definitively no alternatives to the same process.
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