Cleaner-burning Biofuels Reduce Contrails

Biofuel blends can reduce the particle emissions that form contrails by 50-70%, according to the results of NASA-led research flights. Data on particulate emission in cruise flight were collected in 2013-14 in flights of NASA’s Douglas DC-8. The CFM56-power DC-8 was flown on conventional Jet A1 fuel...

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