News of the WeekScienceNOW.org

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Science  01 May 2009:
Vol. 324, Issue 5927, pp. 577
DOI: 10.1126/science.324_577

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Summary

Highlights from Science's online daily news site, ScienceNOW, this week include a new analysis showing that China fell short on cleaning up its air pollution before the Olympics, artificial blood vessels, instant sunglasses, and the dance of pond scum.