A traveler pulls her trolley Friday, Sept. 16, 2022 at Roissy Charles de Gaulle airport, north of Paris.

If there is an efficient train line that can connect commuters from point A to point B, France will no longer allow short flights.

The decision was approved by the European Commission. Three routes are affected by the ban: Paris Orly Airport to Nantes, Paris Orly to Bordeaux and Paris Orly to Lyon

French lawmakers voted to ban short flights in 2021, as part of a larger climate bill that aimed to cut the country's emissions by 40%.

Several direct high-speed rail connections have to be available between each location every day in order for flights to be canceled. Future improvements in the rail services will allow these air routes to be banned, according to the European Commission.

More short flights could be banned in the future. A new generation of double-decker trains was unveiled by France's TGV high-speed rail. There are over 1,000 miles of high-speed trains dedicated to connecting the country's major cities.

Global warming is caused by the greenhouse gases that come from air travel. The flights that are supposed to be carbon neutral are decidedly not. In October, nearly 200 countries pledged to drastically reduce carbon emissions from their aviation sectors; unfortunately, the pledge is non-binding, and some experts are skeptical that it will achieve its net-zero goal.