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<http://s4.reutersmedia.net/resources/r/?m=02&amp;d=20110928&amp;t=2&amp;i=508089537&amp;w=&amp;fh=545px&amp;fw=&amp;ll=&amp;pl=&amp;sq=&amp;r=2011-09-28T170309Z_01_BTRE78R1BDF00_RTROPTP_0_SCIENCE-US-CARBON-PLANTS>
<http://uk.reuters.com/article/2011/09/28/science-us-carbon-plants-idUKTRE78R43E20110928>