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U.S. wood-fired boilers cause concern
New York (UPI) Dec 18, 2006 Research indicating wood-fired boiler heaters spew carcinogens and lung-clogging matter has raised concern across the United States. The U.S. Environmental Protection Agency is considering guidelines for states to regulate wood-fired boilers, The New York Times reported Monday. Dozens of local governments have already taken such steps. Proponents say the boilers save owners thousands of dollars on heating bills per year, while reducing U.S. dependence on foreign oil. But the New York attorney general's office maintains the boilers generate as much pollution per hour as 45 cars or two heavy-duty diesel trucks, the Times said. The fast-growing alternative outdoor energy source was designed to heat farmhouses. Roughly 150,000 units are in use, a number about double that of two years ago say scientists who are studying the boilers' environmental impact. Related Links
Climate Change Affecting Outermost Atmosphere Of Earth
Boulder CO (SPX) Dec 14, 2006Carbon dioxide emissions from the burning of fossil fuels will produce a 3 percent reduction in the density of Earth's outermost atmosphere by 2017, according to a team of scientists from the National Center for Atmospheric Research (NCAR) and The Pennsylvania State University (PSU). The research, which appears in the latest issue of Geophysical Research Letters, will be presented today at the annual meeting of the American Geophysical Union. |
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