Methane: Small Molecule, Big Impact

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Science  21 Nov 1997:
Vol. 278, Issue 5342, pp. 1413-1414
DOI: 10.1126/science.278.5342.1413

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Bacteria invisible to the naked eye produce vast quantities of methane each year--400 million metric tons. In his Perspective, Ferry discusses the microbial ecology that produces this gas and the crystal structure of the key enzyme in its synthesis--methyl-coenzyme M reductase, as reported in this issue by Ermler et al .