The BBC reports that Danish Prime Minister Mette Frederiksen wants flights within Denmark to stop using fossil fuels from 2030. That same year, Denmark must emit 70 percent fewer greenhouse gases than it did in 1990.
It is an ambitious target because “green flying” technology is not yet well developed.
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Aircraft manufacturer Airbus has indicated that it is working on aircraft that run on hydrogen but says it can deliver them from 2035 at the earliest.
Sweden previously set the goal of making domestic flights fossil-free by 2030 and international flights by 2045. France decided in 2021 to ban domestic flights if the destination can be reached within 2.5 hours by train.