Travelling by Car Increases Global Temperatures More Than Travelling by Plane, but Only in the Long Term

http://www.sciencedaily.com/releases/2010/08/100804103648.htm

ScienceDaily (Aug. 3, 2010) — Driving alone in a car increases global temperatures in the long run more than making the same long-distance journey by air according to a new study. However, in the short run traveling by air has a larger adverse climate impact because airplanes strongly affect short-lived warming processes at high altitudes.

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