Study Claims Contrails Contribute To Global Warming | Aero-News Network
Aero-News Network
RSS icon RSS feed
podcast icon MP3 podcast
Subscribe Aero-News e-mail Newsletter Subscribe

Airborne Unlimited -- Recent Daily Episodes

Episode Date

Monday

Tuesday

Wednesday

Thursday

Friday

Airborne On ANN

Airborne 06.29.15

Airborne 06.30.15

Airborne 07.01.15

Airborne 07.02.15

Airborne 07.03.15

Airborne Hi-Def On YouTube

Airborne 06.29.15

Airborne 06.30.15

Airborne 07.01.15

Airborne 07.02.15

Airborne 07.03.15

 

Fri, Jun 16, 2006

Study Claims Contrails Contribute To Global Warming

Condensation Traps Heat In Earth's Atmosphere

Could there be some truth to speculation -- bandied about by environmentalists for years -- that contrails from airliners could contribute to global warming?

Well, the verdict is still out on that... but in a study published Thursday in the journal Nature, scientists postulate the visible streaks of condensation from high-flying airliners could contribute to the greenhouse effect, by trapping heat in the Earth's atmosphere.

University of Reading meteorologist Nicola Stuber, the first author of the study, suggests that contrails' overall impact on climate change is similar in scope to that of carbon dioxide emissions from all aircraft over a 100-year period... about 2 to 3 percent of all human CO2 emissions.

Contrails -- like other high, thin clouds -- reflect sunlight back into space and cool the planet... but the study claims they also trap energy in Earth's atmosphere and boost the warming effect.

That warming effect is particularly evident at night, Stuber said.

"The solar cooling effect [in which contrails reflect solar rays back into space] only happens during the day, when the sun is up," she explained.

The study cites Britain's airline industry, where only one in four flights is a night flight... but those flights, scientists say, create some 60 percent of the warming attributed to contrails.

"The findings have implications beyond their pure scientific value," said Stuber. "...they could be used if policy makers decided to modify flight management systems in order to reduce the climate impact of aviation."

Others scientists, however, questioned the study's findings.

"The jury is out on the impact of contrails," said Patrick Minnis, an atmospheric scientist at NASA's Langley Research Center. "Until we can measure it properly and extensively, and model it and its interaction with cirrus clouds and contrails, we will continue to have large uncertainties about the effect of contrails."

FMI: www.met.reading.ac.uk

Advertisement

More News

Airborne 07.03.15: New Trig Avionics, Cargo Biz Grows, iOS GPS Fix

Also: 'No Drone Zone', Aviation v Media, Women's Air Race Classic, Houston Spaceport, Navy's New A/C Launch System, GA Fly Safe, FAA InFO Trig Avionics tells us they are unveiling >[...]

Aero-News: Quote Of The Day (07.05.15)

"Without question, the arrival of the EA-6B Prowler on the carrier deck established airborne electronic attack as an invaluable, 'don't leave home without it' part of every Navy an>[...]

ANN FAQ: Share Aero-News With Your Friends

Send Them A Story -- We Don't Mind! Do you need another set of eyes to see that story you can't believe Jim just wrote? Want to spread Hognose's unique wisdom and perspective to th>[...]

ANN's Daily Aero-Term (07.05.15): Instrument Approach Procedure

Instrument Approach Procedure A series of predetermined maneuvers for the orderly transfer of an aircraft under instrument flight conditions from the beginning of the initial appro>[...]

ANN's Daily Aero-Linx (07.05.15)

Aero Linx: The Air Force Historical Foundation The Air Force Historical Foundation is dedicated to promoting the preservation and appreciation of the history and heritage of the Un>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2015 Web Development & Design by Pauli Systems, LC