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by illumen
3892 days ago
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That link says 2 to 59 grams too. Apparently the range is very high depending on how the extraction works, and all sorts of factors. Cement and steel for example have very different behaviours for emitting co2. Maybe the steel was melted by wind farm electricity for example. But anyway, even at the high end of the estimates, that is still way lower than coal. |
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