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/NBAA2014 10.24.14 ** HD iPad-Friendly -- Airborne/NBAA2014 10.24.14 **
** Airborne/NBAA2014 10.22.14 ** HD iPad-Friendly -- Airborne/NBAA2014 10.22.14 **
** Airborne/NBAA2014 10.21.14 ** HD iPad-Friendly -- Airborne/NBAA2014 10.21.14 **
** Airborne/NBAA2014 10.20.14 ** HD iPad-Friendly -- Airborne/NBAA2014 10.20.14 **

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 10.24.14: AML's Innovations, NASA Preps For Mars, LightHawk Saves

Also: AW609 Pilots Honored, Airbus' VIP Cabin, FreeFlight's FTX-200, Quicksilver S-LSA Milestone During our visit this week to NBAA 2014, Jim Campbell had a chance to talk with Mar>[...]

Airborne at NBAA-10.22.14: Legacy 500, Universal InSight, BendixKing AeroWave

Also: GE Honda, Sagem's Active SideStick, Syberjet Update, Techno Aerospace Knows How to Party The FAA handed over certification papers for Embraer's Legacy 500 executive jet durin>[...]

Airborne 10.24.14: AML's Innovations, NASA Preps For Mars, LightHawk Saves

Also: AW609 Pilots Honored, Airbus' VIP Cabin, FreeFlight's FTX-200, Quicksilver S-LSA Milestone During our visit this week to NBAA 2014, Jim Campbell had a chance to talk with Mar>[...]

AD: Pacific Aerospace Limited Airplanes

AD NUMBER: 2014-21-02 PRODUCT: Pacific Aerospace Limited Model FU24-954 and FU24A-954 airplanes.>[...]

ANN's Daily Aero-Linx (10.25.14)

The Canard Zone An online forum by and for owners and builders of canard aircraft.>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2014 Web Development & Design by Pauli Systems, LC