August 22, 2012 |
WASHINGTON - A federal appeals court Tuesday struck down a key Obama administration air pollution rule meant to protect Eastern residents from polluters in neighboring states, saying that the Environmental Protection Agency must grant states more time to implement protections. The ruling by two George W. Bush appointees covers the "good neighbor rule" issued by the EPA in mid-2011 to regulate emissions of pollutants, including sulfur dioxide and nitrous oxides, the main ingredients in soot and smog.
May 30, 2012 |
Long-abandoned 80-year-old aerial photographs found in a Danish basement document the unexpectedly rapid response of Greenland glaciers to changes in average temperatures, researchers have found. The studies show that landlocked glaciers were melting faster in the 1930s than they are now, but that those extending into the ocean are melting faster now, a team headed by climatologist Jason E. Box of Ohio State University and graduate student Anders A. Bjork of the University of Copenhagen in Denmark reported in the journal Nature Geoscience.
June 1, 2011 |
Along with the lazy and often hazy days of summer come some not-so-pleasant health risks from exposure to air pollution. Ed Avol, a professor of preventive medicine at the Keck School of Medicine at USC, has been studying the links between respiratory health and air pollution for 35 years. In this edited interview conducted May 19, Avol spoke about the factors that can lead to poor air quality during the summer months and how people can limit their exposure to pollution. What factors make pollution so severe in the summertime?
October 24, 2009 |
The Environmental Protection Agency would require oil- and coal-burning power plants to dramatically reduce hazardous air pollution under an agreement announced Friday that ends a long-standing lawsuit filed by environmentalists. The agreement -- which would probably boost electricity prices but could potentially save thousands of lives -- commits the EPA to set pollution standards by 2011 for the power plants that are responsible for nearly half of all emissions of mercury, which can harm brain development in fetuses and children.
May 18, 2008 |
A surge in toxic gas resulting from a new vent that opened on Hawaii's Kilauea volcano is killing crops on the Big Island and enveloping the area in a haze, sparking health concerns. Although residents of this volcanic island are used to toxic gas, the spike in sulfur dioxide from Kilauea has left people wheezing, and schoolchildren are being kept indoors during recess because of the "vog," or volcanic smog that is covering the area. High gas levels led Hawaii Volcanoes National Park to close for several days in April, forcing the evacuation of thousands of visitors.
April 18, 2007 |
About 140 schoolchildren and teachers were hospitalized after sulfur dioxide was discharged by a chemical plant in southern China, state media reported Tuesday. The plant, which produces chemical fertilizers in the county of Xifeng in Guizhou province, emitted a "huge amount" of sulfur dioxide, a colorless gas, into the atmosphere Monday, the New China News Agency said, citing a local official.