News Focus

Closing the Carbon Circle

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Science  24 Jul 1998:
Vol. 281, Issue 5376, pp. 504
DOI: 10.1126/science.281.5376.504b

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The Kyoto treaty's spotlight on the carbon cycle is already helping to drive a major overhaul of the multibillion-dollar U.S. Global Change Research Program (Science, 12 June, p. 1682). This week's lead Focus stories explore the major scientific uncertainty underlying the Kyoto treaty--how much carbon is stored and released by the world's forests (see p. 504)--and how a global monitoring system will track carbon dioxide flux between land and air (see p. 506).