A frequent flyer tax would help here. Everyone gets a tax-free flight, then a low tax for the next one, and it keeps increasing for more flying. ~23 minutes in this podcast describes it and explains how it'd make a huge impact: https://www.cheerfulpodcast.com/rtbc-episodes/fair-miles
The key stat is it'd be enough to reach the UK's target on carbon emissions from flying by 2050, at a cost of 0% for the first flight and 9% on the second (going up steeply from there). Of course, other countries may have different data but the principle should be the same.
The key stat is it'd be enough to reach the UK's target on carbon emissions from flying by 2050, at a cost of 0% for the first flight and 9% on the second (going up steeply from there). Of course, other countries may have different data but the principle should be the same.