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Science  29 Apr 2011:
Vol. 332, Issue 6029, pp. 518-519
DOI: 10.1126/science.332.6029.518-b

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Summary

In science news around the world this week, scientists have completed the first phase of an expedition to understand the origin and effects of soot on the Arctic's climate, the U.S. Department of Energy has sketched out the radiation risks over the next year to people living near Japan's Fukushima Daiichi nuclear plant, officials have reached milestones for boosting science and the environment in the aftermath of the Gulf of Mexico oil spill, Southeast Asian nations have halted plans for a 1260-megawatt hydropower dam on the Mekong River in northern Laos, and plans to build new nuclear reactors in Italy have stalled following March's accident at the Fukushima plant in Japan.