Greening of Aviation—in multiple dimensions

Green airplane chart
Share this article: FacebooktwitterlinkedinFacebooktwitterlinkedin

GREENING: Improved Efficiency of Powerplant

GREENING: Biofuels

GREENING: enhanced machinery, fuels, expanding use by airlines

GREENING : waste recycling of passenger food


  1. How the aviation industry is lowering its carbon footprint

a.the Geared Turbofan

geared turbo fanThe article is a bit of an advertisement for the benefits of the Pratt & Whitney’s PurePower Geared Turbofan PW1000G engine. Aside from its early introduction problems, its future potential contributions are impressive:

P&W “…calculates that yearly emissions equivalent to CO2 released by 3 million cars could be avoided if all 8,000+ of Pratt & Whitney’s PurePower Geared Turbofan PW1000G engines on order were active in the skies now.”



b. Bio Fuels

The author quoted this forecast:green aviation

“If biofuels were to be broadly used, the reduction in CO2 could be as high as 80 percent. That means biofuel is more sustainable than the standard fossil fuel currently used in air transport,” he says.

The spokesman stresses that KLM only uses biofuel made from sustainable feedstock that does not have a negative impact on biodiversity or food security. To ensure this, KLM buys fuel certified by independent global organisations such as the Round Table of Sustainable Biofuels.

c. the future


“Some people stare and say, ‘oh it’s only 1 percent a year!’. What they don’t understand is compound interest, it’s growth year upon year,” says Epstein, adding that these changes, over time, will lead to big jumps in efficiency for aircraft engines.

On reducing emissions, Coppell says that there is a ‘basket of measures’ for the industry to reduce its carbon dependence, including operational measures and by supporting infrastructure improvements.

The KLM spokesman hopes that more airlines and organisations will join hands to make air transport more sustainable. Airports need to add biofuel to their existing fuelling systems as well, he adds.”

  1. Airports take notice of PDX’s program to reduce food waste


PDX trash


Portland State University students are helping restaurants at Portland International Airport save the environment by preventing food from getting thrown in the trash.

The program is more than a decade old. Since 2003, students in the Community Environmental Services Program think they’ve kept roughly 2,700 tons of airport food waste out of the landfill.

The program is starting to draw attention from other airports.

“A lot of them have actually contacted Portland International Airport, PDX, to get recommendations on how to start their programs. So, really, PDX is on the cutting edge of innovation when it comes to minimizing waste,” said Lisa Appel, environmental outreach manager at the Port of Portland.

The program composts food and uses biogas to generate electricity.

Since 2015, Urban Gleaners helped directly repurpose unused food in the form of 200,000 meals. And now restaurants are using results from new student research to change their daily practices, eliminating more of that waste before it gets made.


Share this article: FacebooktwitterlinkedinFacebooktwitterlinkedin

Be the first to comment on "Greening of Aviation—in multiple dimensions"

Leave a comment