France has formally banned domestic flights on short routes that can be covered by train in less than two-and-a-half hours in a move aimed at reducing airline emissions.

• The change, which came into effect on Tuesday(23-05-2023) , will mostly rule out air trips between Paris and regional hubs such as Nantes, Lyon and Bordeaux, with connecting flights unaffected.
• Max Boycoff, chairman of environmental studies at the University of Colorado, Boulder, said the French law will be a test case for governments around the world.