Violence research.
In the article "Carbon pools and flux of global forest ecosystems" by R. K. Dixon et al. (14 Jan., p. 185), the first sentence in column three on page 187 under the heading "Carbon sources and sinks" should have read, "The net C flux to the atmosphere from the world's forests caused by changes in land use, forest status, and forest C cycling processes was approximately -1.3 to -0.5 Pg year(-1), with a midpoint of -0.9 Pg year(-1) (Table 3)."
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D006801:Humans; D012106:Research; D014754:Violence