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What are the types of SAF and how sustainable are they?
Source: Clearing the Air: Understanding the role of sustainable aviation fuels (SAF)
Life-cycle greenhouse gas emissions by SAF pathway
Most of today’s SAF is produced using HEFA technology. Meeting future demand requires scaling up SAF from scalable, non-food sources and new technologies. When made from waste materials like used cooking oil or tallow, SAF can cut life-cycle emissions by up to 80% compared to fossil jet fuel, but these materials are limited. To meet […]
Why and how to bring down the cost of SAF
Today, sustainable aviation fuel (SAF) generally costs between 2 and 5 times more than fossil jet fuel.
Why SAF is expected to play a larger role in near- and medium-term decarbonization than zero-emission aircraft
As the aviation industry works toward net-zero carbon emissions by mid-century, one thing is clear: sustainable aviation fuels (SAFs) are expected to be the primary decarbonization lever.
Cloudy with a chance of soot: The role of fuel composition in aviation’s non-CO2 impact
Robust sustainability criteria prioritizing minimal life-cycle carbon intensity can help to ensure that sustainable aviation fuels (SAFs) are truly low carbon, which is crucial to achieving aviation’s 2050 net-zero target.
Who gets credit when SAF is used on a flight?
How do airlines know how much SAF is used on their flights, and how does SAF use by airlines affect your personal carbon footprint? Welcome to the world of SAF accounting.
Understanding the greenhouse gas emissions of different SAF pathways
We can understand the differing greenhouse gas (GHG) emission benefits of using sustainable aviation fuels (SAFs) by comparing their life-cycle emissions with the emissions of fossil jet fuel.
Why reconsider counting SAF combustion as carbon neutral?
In this piece, we explore an accounting convention adopted by the Intergovernmental Panel on Climate Change (IPCC) and most regulators, including the International Civil Aviation Organization, that treats biofuel combustion emissions as zero.
Global health benefits of policies to reduce road transport pollution
Achieving these benefits will require action at all levels of government—including cities. Across the 13,000 urban areas studied in the paper, these five policy levers, if implemented, could save 730,000 lives and prevent nearly 1 million new children’s asthma cases through 2040 in cities around the world. This infographic was featured in “City signatories […]
