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Profile: Obama administration
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Grist reports new data that shows America is using substantially less energy than in previous years, because of gains in energy efficiency as well as shifting market conditions and pollution regulations. CO2 emissions have dropped from 1.6 billion tons in 2007 (a record peak) to 1.4 billion tons in 2011, an 11 percent drop. Emily E. Adams of Earth Policy writes that both vehicle fuel efficiency and the number of miles driven by vehicles are improving, adding: “Average fuel efficiency, which had been deteriorating for years in the United States, started to increase in 2005 and keeps getting better. Americans are traveling farther on each gallon of gas than ever before. Furthermore, people are driving less. For many years Americans as a group drove billions more miles each year than the previous one. But in 2007 this changed. Now more cars stay parked because more people live in urban areas, opt for public transit, work remotely, or retire and thus no longer commute to work.” Coal, the dirtiest fossil fuel, is shrinking in usage, though it continues to dominate conventional energy generation structures. Utilities are steadily shifting from coal to natural gas, and some are retiring old, inefficient coal plants instead of paying for expensive retrofits to bring them in line with current pollution regulations. US carbon emissions from coal have fallen 20 percent from their peak in 2005. Natural gas usage has risen sharply, and even though it produces only half the CO2 emissions that coal produces, natural gas added 373 million tons of carbon to the atmosphere in 2012. Solar and wind energy have no carbon emissions whatsoever; solar usage has increased 1,400 percent since 2007, and wind usage over 300 percent. Adams writes, “This is just the beginning of reductions in carbon dioxide emissions as the explosive growth of wind and solar power cuts down the use of dirty fossil fuels.” President Obama has set a goal for the nation to reduce its greenhouse gas emissions by 17 percent by 2020, and the decrease in energy usage and improvements in fuel efficiency are helping to reach that goal. [Grist Magazine, 10/2/2013; Grist Magazine, 10/11/2013]
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