The new climate law will help clean up air travel
As aviation companies develop the first hydrogen-powered jets and electric regional aircraft, a more immediate way to curb the industry’s climate pollution is to burn “sustainable aviation fuel.” Made from waste materials such as used cooking oil, landfill gas and forest residue, the fuels can be blended with fossil jet fuel and used in existing engines. The problem is that today’s sustainable supplies amount to a tiny drop: well below 1 percent of global jet fuel demand.