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Yes, your mother loves the flowers, but maybe not the cost of flying them in

Twice a year, at Valentine’s Day and Mother’s Day, newspapers in the U.S. often print articles informing the public where their flowers come from. While the main purpose of these stories may be to...Around Mother’s Day, media outlets often publish articles about where the flowers we buy often originate and the extraordinary efforts taken to transport them to the U.S. How much jet fuel is burned...
Published 2018.05.09: Blog Post

ICAO, why can’t you be a bit more like your sister?

Arguably, the biggest climate news so far in 2018 is the International Maritime Organization, or IMO, finally adopting a global climate framework for international shipping. In doing so, it joined...IMO and ICAO, the sister UN agencies governing international shipping and aviation, have both struck global deals on greenhouse gas emissions. But why, oh why ICAO, can’t you be more like your sister...
Published 2018.05.02: Blog Post

Did the Delta and United exit from the Persian Gulf have any effect on the market’s fuel efficiency?

In the first quarter of 2016, both Delta Air Lines and United Airlines ended all flights from the U.S. to the Persian Gulf. Delta stated that they terminated their Atlanta-Dubai route because it was...With the exit of Delta and United from the Persian Gulf market, one would expect that there was some impact on the market’s average fuel efficiency. But, is it due to a less diverse mix of aircraft,...
Published 2018.04.24: Blog Post

Policy and Environmental Implications of Using HEFA+ for Aviation

The aviation sector must confront rapidly increasing greenhouse gas (GHG) emissions and ambitious decarbonization targets. Alternative jet fuels (AJFs) could be route to decarbonizing this sector,...
Published 2018.03.21: Publication

Does it matter to your carbon footprint whether you're flying across the Atlantic or the Pacific?

In 2015, the ICCT released a white paper comparing the fuel efficiency of 20 major airlines operating in the transatlantic market-specifically, nonstop passenger flights between North America and...Two recent ICCT studies on the fuel efficiency of airlines revealed different gaps between the most and least efficient airlines operating transatlantic and transpacific routes. Could this be due to...
Published 2018.03.05: Blog Post

Size matters for aircraft fuel efficiency. Just not in the way that you think.

In our recent transpacific airline ranking, we assessed and compared the fuel efficiency of the top 20 airlines operating flights between the U.S., East Asia, and Oceana.  One interesting finding was...One might assume that the larger the plane, the more fuel-efficient it is per passenger due to economies of scale. But in the case of flights over the Pacific, conventional wisdom turns out to be...
Published 2018.02.27: Blog Post

One weird trick to improve airline efficiency - gain belly weight!

In our recent transpacific airline fuel-efficiency ranking, we quantified the passenger-based fuel efficiency of 20 airlines after correcting for cargo carried on passenger flights ("belly freight...Would ICCT's recent transpacific fuel efficiency ranking change if dedicated freighters were taken into account? Did the rankings incorrectly reward airlines for carrying belly freight when putting...
Published 2018.02.22: Blog Post

Transpacific airline fuel efficiency ranking, 2016

This report compares the fuel efficiency of 20 airlines operating nonstop flights between the mainland United States and East Asia and Oceania. It extends the previous transatlantic fuel efficiency...
Published 2018.01.16: Publication

Hainan and ANA operate the most fuel-efficient transpacific flights

New study ranking 20 carriers shows 64% gap between leaders and least efficient Qantas Hainan Airlines and All Nippon Airways (ANA) ranked first in overall fuel efficiency among transpacific...
Published 2018.01.16: News

Canada-U.S. transborder airline fuel-efficiency ranking

More than 27 million passengers flew between the United States and Canada in 2016, and this number is expected to double in two decades. Despite regulatory efforts to curb aviation emissions,...
Published 2017.12.27: Publication

U.S. domestic airline fuel efficiency ranking, 2015–2016

Following in the footsteps of the 2010–2014 airline rankings, this study ranks U.S. domestic air carriers by their overall fuel efficiency for the years 2015 and 2016. The analysis continues the use...
Published 2017.12.14: Publication

Profits and carbon emissions surge for U.S. domestic airlines

Low fuel prices and high travel demand undercut overall fuel-efficiency gains in aircraft operations in 2015 and 2016, study finds Annual fuel-efficiency ranking of domestic carriers shows Alaska...
Published 2017.12.14: News

Delta should double down on CSeries, fuel savings

Many of us in the aviation field are in serious need of an airsickness bag, given the turbulence we’ve experienced recently over the Bombardier CSeries. That’s the new aircraft developed by the...Bombardier's new aircraft is mired in trade disputes, and that's creating some uncertainty over Delta Air Lines' order for 75 CS100 planes. But if Delta keeps its eye on the fuel savings it will reap...
Published 2017.11.17: Blog Post

Alternative jet fuels: Case study of commercial-scale deployment

Several airlines around the globe have conducted or participated in pilot projects to demonstrate the feasibility of using alternative jet fuel (AJF) on regular flights. However, most of these...
Published 2017.10.24: Publication

Boeing, GE, and ICCT makes three!

It’s been a dizzying couple of weeks for those (admittedly few) of us who work on aircraft emissions. Two weeks ago last Friday, the Center for Biological Diversity announced that it had sent the U.S...Next year, EPA has the chance to propose an ambitious GHG standard for aircraft to promote low carbon aviation. It alluded to the possibility of going further than the UN’s weak recommendations in...
Published 2017.10.02: Blog Post

Maximizing aircraft fuel efficiency: Listen to the experts

  The fifth and final installment in a series featuring interviews with experts who worked with the ICCT on our cost assessment of near- and mid-term technologies to improve new aircraft fuel...One of the key challenges faced by engine and airframe manufacturers in developing fuel-efficient products is the looming risk that their significant investment will not pay off. The more this risk...
Published 2017.08.30: Blog Post

Maximizing aircraft fuel efficiency: Don’t skimp on R&D

Part 4 in a series featuring interviews with experts who worked with the ICCT on our cost assessment of near- and mid-term technologies to improve new aircraft fuel efficiency. The aim of the series...An interview with Dr. Fay Collier, Associate Director for Flight Strategy, Integrated Aviation Systems Program at NASA Aeronautics and a former Project Manager at NASA Environmentally Responsible...
Published 2017.08.15: Blog Post

Maximizing aircraft fuel efficiency: Make sure the economics add up

Part 3 in a series featuring interviews with members of the technical advisory group who worked with the ICCT on our cost assessment of near- and mid-term technologies to improve new aircraft fuel...Richard Golaszewski's insights on what a successful clean-sheet aircraft program looks like—from research and development to sales, what made it successful, and what makes sense for manufacturers and...
Published 2017.07.18: Blog Post

Maximizing aircraft fuel efficiency: Back to the drawing board

Part 2 in a series featuring interviews with members of the technical advisory group who worked with the ICCT on our cost assessment of near- and mid-term technologies to improve new aircraft fuel...Why real-world aircraft fuel efficiency improvements fell short of ICAO's mid- and long-term fuel burn technology goals for aircraft designs and what can be done to get us closer to achieving them....
Published 2017.07.10: Blog Post

Maximizing aircraft fuel efficiency: Designing from scratch

Why aren’t we seeing more radically fuel-efficient aircraft, the way we're seeing more efficient cars and trucks? You can get a lot of different answers to that question, depending on who you ask. We...Why aren’t we seeing more radically fuel-efficient aircraft, the way we're seeing more efficient cars and trucks? You can get a lot of different answers to that question, depending on who you ask....
Published 2017.06.14: Blog Post

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