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What determines aviation emissions? |
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Aviation emissions reflect the level of overall aviation activity. The growth of air travel for the past several decades has been very rapid. Demand for travel services, both passenger travel and freight transportation, is increasing substantially. According to the U.S. Bureau of Transportation Statistics a 21.5 percent increase in population, 32 percent increase in the labor force, and 90 percent increase in GDP between 1980 and 2000 have driven this demand. The chart shows the growth of aviation and the economy. Demand for air travel grows as the economy grows and prosperity increases. Over the long term, we expect that demand for air transportation will continue to grow rapidly to support our economic productivity, our quality of life, and our national security. |
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