Word: coal
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Environmentalists have long known that when it comes to climate change, coal will be a dealbreaker. The carbon-intensive fossil fuel provides nearly half of the United States' electricity, and is responsible for some 30% of the country's greenhouse gas emissions. That's just due to the coal plants already operating - as the U.S. looks to expand its energy supply to meet rising demand in the future, over 100 coal plants are in various stages of development around the country. If those plants are built without the means to capture and sequester underground the carbon they emit...
...That's why a decision issued on Thursday by the Environmental Protection Agency's (EPA) Environmental Appeals Board is so important. Responding to a lawsuit filed by the Sierra Club over a new coal plant being build on American Indian reservation land in Utah, the board ruled that the EPA has no valid reason to refuse to regulate the CO2 emissions that come from new coal-powered plants. The decision pointed to a May 2007 ruling by the Supreme Court that recognized CO2, the main cause of climate change, is indeed a pollutant under the federal Clean...
...Sierra Club had originally sued to stop the construction of Deseret Power's Bonanza Generating Station in Vernal, Utah, part of their nationwide campaign to stop new coal. The 110-megawatt plant, which received its EPA permit in July 2007, would have emitted 3.37 million tons of CO2 a year - the equivalent to putting another 660,000 cars on the road. In detail, Thursday's decision means that any new air pollution permits for coal plants will require that Best Available Control Technology (BACT) be used to reduce CO2 emissions, the same criteria currently used for other pollutants, like sulfur...
...Right now, however, there is no definition of BACT for CO2, and environmentalists estimate it will take six months to a year to figure that out. In the meantime, all other coal plants in the permitting process, or stuck in the courts, will be frozen. Over the longer term, it's possible that new coal plants may be impossible to certify at all until a technology exists to greatly reduce or sequester carbon emissions from coal plants - and currently none has been proven. "The decision says the EPA can't ignore CO2," says Nilles...
...remove it at the back end. The process also leaves a huge carbon footprint, says Rose George, author of The Big Necessity: The Unmentionable World of Human Waste and Why it Matters. In the UK, she says, "the sewage system uses as much energy as what the largest coal fire station in the [country] produces" - about 28.8 million tones of carbon dioxide a year...