Air Travel Trends Mixed as Carbon Footprint Grows

In 2008, the traveling public flew 4.28 trillion passenger-kilometers on airplanes, a 1.3 percent increase from 2007. The distance that passengers travel has increased every year except 1991 and 2001 since statistics were first recorded by the International Civil Aviation Organization (ICAO) in the 1940s. In the past two decades, the number of passenger-kilometers traveled more than doubled—from 1.7 trillion in 1988 to 4.3 trillion in 2008.

Read: Air Travel Trends Mixed as Carbon Footprint Grows by Nausheen Khan and Kelsey Russell

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