Support certified climate projects
From the modernization of our fleet to reducing our overall emissions, we are committed to the decarbonization of our operations. Join us by making a contribution towards certified climate projects.
Carbon calculator app
Sustainable Aviation Fuel (SAF)
Sustainable Aviation Fuel (SAF), also known as alternative jet fuel, is the industry term used to describe non-conventional jet fuels that are derived from renewable resources. SAF is a drop-in fuel substitution, meaning it can be blended with conventional jet fuel in current aircraft engines without modifications. This substitution offers an immediate solution for helping to reduce lifecycle emissions from aviation. SAF has the potential to provide a lifecycle emissions reduction of ~80% compared to the traditional jet fuel it replaces.
Carbon offset credits
Carbon offsetting is a mechanism that advances climate action by supporting certified third-party projects that contribute to the reduction or removal of greenhouse gas (GHG) emissions. The offsets made available through this program are from projects that are certified by internationally recognized carbon certification standards such as Verra, Gold Standard, etc. Each of these certification standards sets requirements for the design, implementation, and execution of a given project.
Supported climate projects
Frequently asked questions (FAQ)
What is a greenhouse gas emissions footprint?
A greenhouse gas emissions footprint, also informally referred to as a carbon footprint, is an estimation of all of the greenhouse gas (GHG) emissions that result from daily activities, transactions, or operations. GHG emissions trap heat in the atmosphere, and they include carbon dioxide, methane, nitrous oxide, and fluorinated gasses.
How are emissions estimated?
Emission estimations follow the to calculate the estimated greenhouse emissions associated with a passenger's travel. The RP 1726 calculation methodology takes into account multiple parameters including aircraft fuel consumption, seat configuration, cabin class, aircraft type, and historical load factors from more than 400 airlines. Precision of the emissions calculation can vary based on the input data. You can learn more about these parameters and the calculation methodology . The emissions estimates are provided for informative purposes only, and they do not reflect the actual emissions associated with your flight(s).
What is sustainable aviation fuel (SAF)?
Sustainable Aviation Fuel (SAF), also known as alternative jet fuel, is an industry term used to describe non-conventional jet fuels that are derived from renewable resources, known as feedstocks. Unlike traditional fossil-based jet fuels, SAF uses alternative feedstocks and is produced through various technologies, known as processing pathways. SAF is a drop-in fuel substitution, meaning it can be blended with conventional jet fuel in current aircraft engines without modifications. This substitution offers an immediate solution for helping to reduce lifecycle emissions from aviation. SAF has the potential to provide a compared to the traditional jet fuel it replaces.
What are SAF environmental attributes? Where does my money go when I purchase SAF environmental attributes?
Due to the limited amount of SAF available in the market today (SAF makes up of global jet fuel), SAF production, distribution, and refueling infrastructure are not yet widespread. Because of this, the sector has taken to using a “book and claim” chain of custody model. Through the book and claim model, you can purchase SAF scope 3 environmental attributes that are associated with the use of physical SAF. This chain of custody model separates the physical fuel from its environmental benefit, and allows those environmental benefits – known as environmental attributes – to be tracked, purchased, and claimed without the buyer needing to be connected directly to the physical fuel supply chain. The purchase of these environmental attributes provides a buyer with a claim to the climate benefit associated with a given volume of physical SAF, while simultaneously helping to cover the cost difference between SAF and conventional jet fuels. Through this process, you contribute to demonstrating demand for a more sustainable aviation sector and to helping to lower the current cost barrier of SAF.
How is SAF produced?
SAF is produced using conversion technologies, which transform a range of feedstocks into fuel that can be used in airplanes. These conversation technologies are also referred to as processing pathways. The most common processing pathway today is Hydrotreated Esters and Fatty Acids (HEFA), which refines oils, waste, and fats into SAF using a hydrogen-infused process. Other pathways include Fischer-Tropsch (FT) and Alcohol-to-Jet (AtJ) processes, which use catalytic chemical reactions. In addition, SAF can be produced without extensive infrastructural changes via co-processing, which is the simultaneous processing of fuels using non-petroleum and petroleum feedstocks at existing fuel refineries. As SAF development and adoption grows, feedstocks and production technologies will evolve. Future advancements could include eSAF, created by capturing atmospheric carbon and converting it into fuel.
What is carbon offsetting? What are carbon offsets and carbon credits?
is a mechanism that advances climate action by supporting certified third-party projects that contribute to the reduction or removal of greenhouse gas (GHG) emissions. Certified projects issue carbon credits, also referred to as offset credits or offsets, which act as an instrument for selling or trading the project’s associated removal or reduction impact. Each carbon credit represents a single unit of GHG emissions–one credit equates to one tonne of carbon dioxide equivalent (tCO₂e) that is reduced or removed from the atmosphere or the emissions lifecycle. A key defining factor is that the emissions reduced or removed by a carbon credit would not have taken place without the prospect of selling such a credit. A unit of GHG emissions can be reduced or removed through various methods or project types. A project's ability to issue carbon credits depends on a set of rigorous conditions – in order to issue credits, the emission reductions or removals must be validated as additional, measurable, auditable, permanent, and unique.
What does it mean to retire a carbon credit?
Certified projects issue carbon credits in an amount that is based on the tonnes of emissions that the project reduces or removes. Those issued credits are then tracked on a publicly available registry (e.g. Verra, Gold Standard, American Carbon Registry, etc.) When projects are certified by a recognized carbon standard, the credits are then issued on the registry of that standard. An individual credit can only be registered by one carbon standard. These issued credits can then be sold and traded. In almost all cases a credit is issued, it represents an amount of emissions that is already removed or reduced from the atmosphere, not a future facing action. This type of carbon credit is referred to as an ex-post credit and helps ensure the integrity of the purchase and the voluntary carbon market (VCM) at large. The act of “retiring” a credit means indicating on the registry that the particular credit has been purchased and used. Once retired, a credit can no longer be sold or traded. This process avoids risks of double counting or double use of a given credit.
Who is Chooose™?
Chooose builds software to enable the lower carbon fuel value chain. Leading companies in aviation and freight use the Chooose platform to operate and scale their SAF programs, and to advance voluntary and compliance carbon initiatives. Learn more at .