U.S. Environmental Protection Agency Administrator Lisa Jackson speaks during a news conference in Rio de Janeiro, Brazil, Tuesday, Aug. 16, 2011. Jackson is in Brazil to establish the Joint ... more 
U.S. Environmental Protection Agency Administrator Lisa Jackson speaks during a news conference in Rio de Janeiro, Brazil, Tuesday, Aug. 16, 2011. Jackson is in Brazil to establish the Joint Initiative on Urban Sustainability (JIUS) in the South American country, ain initiative aimed to create a broad policy framework for projects, highlighting projects for visibility and investment, and making policy recommendations to leaders around the world to support investments in sustainable cities. (AP Photo/Felipe Dana) less 
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Associated Press | Photo By Felipe Dana
Tue, Aug 16, 2011 10:28 AM EDT