NASA links jet contrails to global warming. Now what?
Posted 08.30.2004 at 1:10 pm
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by EPA/NASA
A standard infrared satellite image shows cloud coverage (left). a double-wavelength infrared image reveals the underlying contrails (right).
EPA/NASA
In 2002, using data collected during the three-day grounding of all aircraft in the U.S. after 9/11, scientists discovered that contrails—the wispy white streaks that trail jets—were narrowing the natural day-night temperature cycle in well-trafficked areas. Now a NASA study indicates that warmed-up nights are outpacing cooled-down days. In the U.S., for example, detailed atmospheric modeling suggests that contrails could account for a climate-warming trend—just under 0.3
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