The 2016 International Civil Aviation Organization (ICAO) Assembly adopted an international aviation growth scheme for 2021 and beyond that does not increase CO2 emissions. This plan is called the Carbon Offsetting and Reduction Scheme for International Aviation, or CORSIA.
The ANA Group engages in several measures to control CO2 emissions from our aircraft. These measures include aircraft technology innovations, improved operations, use of biojet fuel, and the use of emissions credits.

Global Stance on the Environment

ICAO Movements

The ICAO has set a global target for improving international aviation fuel efficiency by an average 2% per year between 2021 and 2050. To achieve this goal, the ICAO adopted CNG2020 at its 2010 assembly as a mechanism to become greenhouse gas (CO2) neutral beginning in the year 2020.

Global CO2 Reduction Targets

  • Improve Fuel Efficiency by 2% Annually
  • Achieve CO2 Neutrality beginning with the year 2020 (CNG2020: Carbon Neutral Growth 2020)

Achieving the four Targets of the ICAO (Basket of Measures)

  • Adopt new technologies (new aircraft, etc.)
  • Improve flight operations
  • Use alternative aircraft fuel (SAF:Sustainable Aviation Fuel)
  • Use market mechanisms (purchase CO2 emissions credits)

CORSIA Adoption

The 2016 ICAO Assembly adopted an international aviation growth scheme for 2021 and beyond that does not increase CO2 emissions. This plan is called the Carbon Offsetting and Reduction Scheme for International Aviation, or CORSIA.

IATA Movements

The International Air Transport Association (IATA) established the following three specific action plans to response to the ICAO initiatives:

  • Carbon-neutral growth beginning with the year 2020
  • Generate an average 1.5% fuel efficiency improvement between 2009 and 2020
  • Reduce CO2 emissions by 50% by the year 2050 compared to 2005

IATA Vision (Concept)

ANA Group Long-Term Goals and Results in Controlling Aircraft CO2 Emissions

Aiming to be the leading environmental airline group, the ANA Group continues to pursue initiatives toward controlling CO2 emissions.


  • Reduce per-RTK CO2 emissions 20% by 2020 compared to 2005 levels (annual average improvement of 1.5%)
  • Reduce overall per-unit CO2 emissions by an annual average of 1.5%

Specific Initiatives

The ANA Group is making aircraft operations-related improvements to control CO2 emissions.
Since April 2014, we have revamped the framework with the theme of implementation and visualization as a group, and are working on improvements in the operations department to reduce CO2 emissions.

Aircraft innovation

Introduction of Fuel-Efficient Aircraft and Engines
As of fiscal 2019,87.5% of the ANA group fleet consists of fuel-efficient Boeing B787 or AirbusA320/A321 aircraft.
Our state-of-the-art aircraft with upgraded engines meet the standards of ICAO Convention Annex 16.

Equipping Aircraft with Winglets
Winglets are a type of wingtip devices fitted to the end of the main wings. Attaching winglets reduces air resistance that occurs during flight. The use of winglets on the Boeing 767-300ER, which is operated on long-haul flights, can improve fuel efficiency by around 5% and reduce per-aircraft CO2 emissions by 2,100 tons per year. In 2010, the ANA Group became the first domestic airline to attach winglets to a Boeing 767-300ER and has since then consecutively added wingtips to its Boeing B767-300ER fleet.

Introduction of Next-generation Paint System
We are employing a next-generation paint system that offers superior weather resistance in contrast with traditional coating, contains few volatile organic compounds, and which results in lighter aircraft.

Reducing the Weight of Cabin Seats
The ANA Group developed new standard seats for domestic routes in partnership with Toyota Boshoku Corporation.
By combining the ANA Group's know-how as an airline with Toyota Boshoku's manufacturing technologies cultivated over many years through the development of automobile seats, we developed comfortable seating that meets our technical specifications as well as our desire to provide a relaxing environment for all based on our policy of assuring our passengers a "memorable journey."In developing these seats, we managed to reduce the overall cabin weight by 195 kilograms per aircraft compared to conventional seating without compromising comfort. This weight reduction has, in turn, allowed us to cut our annual fuel consumption by approximately 15 kiloliters per aircraft.

Operations Improvements

Water Cleaning Engines / Test Operations
The ANA Group has developed a unique vehicle for cleaning engine compressor parts. Engine compressor parts become dirty with each use, reducing fuel efficiency. Regular cleaning restores full engine function.
We have also revised test operations and introduced other efficiencies, saving 1% on annual fuel usage in test operations.

Reducing Thrust Reverser Usage and Single-Engine Taxiing
While ensuring safety, the ANA Group is reducing the use of thrust reversers during landing as a means to reduce engine output, which in turn reduces both CO2 emissions and noise. CO2 emissions are further reduced through the use of single-engine taxiing after landing. The decisions to implement these measures are made by the aircraft captains and are based on a range of factors, including airport, weather, runway, and aircraft conditions as well as instructions from the control tower.

ICAO Landing and Take-Off Cycle
The ICAO landing and take-off cycle is the cycle from take-off to 3,000 feet in elevation and from 3,000 feet in elevation to landing. Engine emissions are measured for engines within this cycle. Engine test criteria consist of the following output and operation hour criteria.

ICAO Landing and Take-Off Cycle
Output (%)
Take-Off 100 0.7
Ascending 85 2.2
Descending 30 4.0
7 26.0

Implementation of Normal Climb
In order to reduce fuel consumption during takeoff and ascent, the altitude at which acceleration is started is changed from the normal 3000 feet to 1500 feet, and the timing for storing the flaps is accelerated to reduce aircraft resistance and reduce total fuel consumption

Promoting an Energy-Efficient Descent Method
Continuous Descent Approach (CDA) is a method in which an aircraft descends continuously with minimum engine thrust from the start of descent until the final approach point, as opposed to descending in stages with periods of level flight. This method is effective for reducing both CO2 emissions and noise. The ANA Group began implementing this method for late-night and early-morning flights at Kansai International Airport and is expanding its use to other applicable airports while cooperating with the relevant organizations.

Energy-Efficient Descent

Reducing the Amount of Water on Board
A lighter aircraft will consume less fuel and thereby emit less CO2. As part of its efforts to reduce aircraft weight, the ANA Group has been reviewing the amount of drinking water that is carried by aircraft on both international and domestic routes. When an aircraft arrives at Haneda Airport, any water remaining onboard is recycled for purposes such as facility cleaning.

Reducing the Weight of Onboard Items
In order to achieve greater fuel efficiency, the ANA Group is working to reduce not only the weight of the aircraft itself, but also that of the equipment and items which are carried on board. Reducing the weight of both the WINGSPAN inflight magazine and Sky Shop inflight sales catalog by changing the type of paper they are printed on and reducing the number of pages are examples of these detailed efforts. Another example is the adjustment of the amount of utensils, beverages, etc., that are loaded and the removal of low-demand items based on reports from cabin attendants. By replacing paper manuals with digital versions, the weight of cabin attendant manuals was also reduced by 70%.

Introduction of Sustainable Aviation Fuel (SAF)

Entities around the world are conducting research and development and making preparations for the adoption of SAF. Japan has established the Committee for the study of a Process Leading to introduction of SAF for the Tokyo 2020 Olympics and Paralympics. The ANA Group is working with the Ministry of Economy, Trade and Industry, the Ministry of Land, Infrastructure, Transport and Tourism, the Scheduled Airlines Association of Japan, the Petroleum Association of Japan, NEDO*1, and airport fuel suppliers to address issues. We also support Euglena Co., Ltd. the development and practical implementation of SAF derived from sources such as euglena, a microscopic protozoan.

  1. *1.New Energy and Industrial Technology Development Organization

Measures Toward Emissions Control Under CORSIA (Purchase of Emissions Credits)

We expect to purchase an increasing amount of CO2 emissions credits to accomplish the ICAO agreements for responding to growing demand for air travel and controlling CO2 emissions.
More specifically, we intend to purchase CO2 emissions credits for businesses other than international air operations, since we will be CO2 neutral in 2020 and beyond. Rather than approach CO2 emissions limited solely to air travel, we believe we can do more by contributing to CO2 emissions control efficiently on a global environmental basis. The ANA Group intends to take advantage of these market mechanisms to control CO2 emissions efficiently.


FY2019 CO2 Emissions on Domestic and International Routes per Unit

FY2019 CO2 Emissions on Domestic and International Routes per Unit
Achieved 1.01KgCO2 / RTK against the target value of 1.03KgCO2 / RTK for the ANA brand

FY2019 CO2 Emissions on Domestic Routes

FY2019 CO2 Emissions on Domestic Routes
Achieved 4 million tons against the target of 4.4 million tons under the ANA brand

ANA Carbon Offset Program

The ANA Group offers the ANA Carbon Offset Program as an option for passengers to offset an equivalent amount to the CO2 emissions of their air travel. We created this program in response to customers who voiced interest in preserving the environment and preventing global warming.
We have selected global warming prevention projects that meet the most stringent certification standards (J-VER, Gold Standard CDM/VER) to be beneficiaries of our offset program.

Burning fossil fuels such as coal, gasoline, and kerosene emits carbon dioxide (CO2) into the atmosphere. CO2 is the largest source of anthropogenic greenhouse gases. All transportation using fossil fuels when transporting people and goods emits CO2. Through calculation of CO2 emissions, Blue Dot Green visualizes CO2 emissions and provides opportunities to reduce emissions. The platform provides airline passengers with the option to offset the unavoidable CO2 emissions of air travel, enabling customers to help combat global warming. CO2 emissions are calculated on a scientific basis and directly contribute to certified climate protection projects. The idea of ​​carbon offset is to make up for the savings created by greenhouse gas reduction projects conducted elsewhere. This makes it possible to indirectly invest in greenhouse gas reduction activities commensurate with emissions. You can choose from three types of projects: Japanese projects, Cambodia and Chinese projects. Overseas global warming prevention projects are mainly implemented in developing countries because they can easily reduce CO2 emissions and can reduce emissions on a large scale relative to the amount invested.

Under this program, customers can calculate their carbon emissions by flight, purchasing offsets via credit card. Purchases can be made retroactively, prior to flights, or at any time the customer desires.

Click here for more about the ANA Carbon Offset Program.