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krupanyesterday at 2:30 AM1 replyview on HN

And wood, coal, and oil are renewable. It's funny that we have fixated on "renewable" when carbon in the atmosphere is the problem, isn't it?


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micwyesterday at 5:13 AM

No, coal and oil is not. Since we have micro organisms that can consume wood, coal and oil will never be produced again.

> During the Carboniferous period, massive amounts of plant matter accumulated to form coal because microorganisms and fungi had not yet evolved the ability to break down lignin, a tough, aromatic polymer in woody plants.

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