Alternative jet fuels: The future of flying may depend on french fries, trash, and sunlight.

The Royal Air Force in the UK has tested alternative jet fuels in some of its aircraft, including the Typhoon fighter jet.

Synopsis

New policies in EU and the US are boosting sustainable aviation fuels. Even airlines are pushing ad campaigns that feature their efforts to switch fuel sources. While alternative fuels could be a climate solution for aviation, their actual impact will depend on several factors. Here’s all you need to know about the future of jet fuel and the climate.

By Casey CrownhartAviation accounts for about 2% of global carbon dioxide emissions, and once you add in other polluting gases, the industry is responsible for about 3% of all human-caused global warming.One way the aviation industry hopes to cut down on its climate impacts is by using new fuels. These alternatives, often called sustainable aviation fuels (SAFs), are made from a wide range of sources, and can largely be used by existing planes.

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