This Week's Letters

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Science  07 Feb 1997:
Vol. 275, Issue 5301, pp. 737-741
DOI: 10.1126/science.275.5301.737

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Methods for “disposing of excess military plutonium” are advocated. A writer from Chile suggests how his nation might better “channel the scientific creativity of talented scientists.” Researchers find that “weather and climate” are important forces “driving” plant disease. Interactions “between carbon dioxide and nitrogen enrichment” in grassland ecosystems are discussed. And are “wayward” grizzlies facing a threat from politics?