A return flight London - Edinburgh produces 193kg of carbon emissions whilst the same journey by train produces only 24kg CO2. Ending internal flights when the journeys could be made without much inconvenience by far less polluting means, would significantly reduce the risks of the climate crisis.
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If left unabated the climate crisis will cause widespread suffering of people and wildlife, and economic loss. We need to half our carbon emissions by 2030 and then reduce them to net zero by 2050. The sooner we can change the way we live, adopting climate friendly habits, the easier it will be. The Government can play a major role in enabling and encouraging us to make these lifestyles changes, and to do so in a way that is fair to everyone.