If fossil fuels burn completely, the end products are carbon dioxide and water. Today, the carbon dioxide is a waste product, one that goes into the air — adding to global warming; or the oceans — acidifying them; or underground — with as yet unknown consequences.
But it’s not impossible, says Liviu M. Mirica, PhD, assistant professor of chemistry in Arts & Sciences at Washington University in St. Louis, to drive things the other way, turning carbon dioxide into fuels such as methanol or hydrocarbons.
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