October 5, 2011–In June 2012, the nations of the world will convene in Rio de Janiero for the 20th anniversary of the landmark 1992 Rio Conference on Environment and Development that set the stage for a number of important treaties, including the Montreal Protocol to protect the ozone layer and the UN Framework Convention on Climate Change.
October 5, 2011–A historian at the National Security Archives made a Freedom of Information Act request in March 2010 to the CIA’s Center on Climate Change and National Security (CCCNS). On Sept. 16, 2011, the CIA finally responded, telling Richelson that all the material he requested was classified and thus exempt from FOIA.
September 14, 2011–NOAA said on Sept. 8, 2011, that the La Niña weather pattern has returned already, after the last La Niña cycle ran from June 2010-May 2011, causing extraordinarily frequent and damaging extreme weather. If typical patterns pan out in the new cycle, that could lead to more drought and fires in the south, and blizzards and flooding in the north.
September 14, 2011–By Sept. 28, 2011, EPA and the US Dept. of Transportation's National Highway Traffic Safety Administration say they will jointly release proposed standards designed to significantly increase fuel mileage and reduce greenhouse gas emissions from passenger cars, light trucks, and medium-duty passenger vehicles in model years 2017-2025.
August 24, 2011–The system, proposed during the first months of the Obama administration, was delayed when it faced heavy opposition from industry groups and Republicans. In response, EPA reduced the number of businesses that need to report their emissions.
August 3, 2011–The effects of the 2009-2010 El Niño winter on western shorelines may be an indicator of what could occur more frequently as climate change continues, say researchers from the USGS, Oregon Department of Geology and Mineral Industries, Washington State Department of Ecology, University of California, Santa Cruz, Oregon State University, and Scripps Institution of Oceanography.