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<jats:p>In science news around the world this week, Brazil's environment agency approved construction of an immense hydroelectric station in the Amazon rainforest, a spending bill passed by the House of Representatives would drastically downsize science and technology programs at the U.S. Department of Homeland Security, the World Health Organization has concluded that cell phones may be carcinogenic, and a new report warns that international funding needed to maintain progress in fighting HIV/AIDS has been declining.</jats:p>

<jats:p>National Academies reports can now be downloaded free of charge. Researchers have attempted to mate a pair of rare corpse flowers. And this week's numbers quantify Arctic lands that will be unreachable by 2050 and points devoted to a math problem later found to be unsolvable.</jats:p>

<jats:p> Follow the links below for a roundup of the week's top stories in science, or <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="http://www.sciencemag.org/content/332/6035/1246.1.full.pdf">download a PDF of the entire section</jats:ext-link> . <jats:list list-type="bullet"> <jats:list-item> <jats:p> <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="http://www.sciencemag.org/content/332/6035/1246.2.summary">Around the World</jats:ext-link> </jats:p> </jats:list-item> <jats:list-item> <jats:p> <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="http://www.sciencemag.org/content/332/6035/findings.full">Findings</jats:ext-link> </jats:p> </jats:list-item> <jats:list-item> <jats:p> <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="http://www.sciencemag.org/content/332/6035/1246.3.summary">Random Samples</jats:ext-link> </jats:p> </jats:list-item> <jats:list-item> <jats:p> <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="http://www.sciencemag.org/content/332/6035/1247.1.summary">Newsmakers</jats:ext-link> </jats:p> </jats:list-item> </jats:list> </jats:p>

<jats:p>This week's Newsmakers are Rosalyn Yalow, winner of the 1977 Nobel Prize in physiology or medicine for developing a radioimmunoassay for measuring minute quantities of hormones in blood with radioactive tracers, who died on 30 May at the age of 89; and the winners of the 2011 Gruber Cosmology Prize and the Shaw Prizes, which highlight achievements in astrophysics, immunology, and geometry.</jats:p>

<jats:p> Scientists are getting to know the pathogen causing the deadliest outbreak of enterohemorrhagic <jats:italic>Escherichia coli</jats:italic> bacteria on record in unprecedented detail via tweets, wikis, and blogs. </jats:p>

<jats:p>John Mashey is spending his retirement years compiling voluminous critiques of what he calls the "real conspiracy" to produce "climate antiscience."</jats:p>