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I don't believe that it's true a fully coal powered EV produces more carbon per mile due to how inefficient combustion engines are

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I'll be honest, I haven't bothered to double check it, but it may be that coal is just that dirty.

I would certainly believe that the smog/pollutants from coal outweigh the benefits, but acording to this [1] Reuters article reviewing this question:

> Even in the worst case scenario where an EV is charged only from a coal-fired grid, it would generate an extra 4.1 million grams of carbon a year while a comparable gasoline car would produce over 4.6 million grams, the Reuters analysis showed.

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