There are several ways to reduce the amount of air travel throughout the world. Here are some potential strategies:

1. Promote alternative modes of transportation: Encourage the use of trains, buses, and other forms of public transportation for shorter distances. This can be achieved by improving and expanding existing infrastructure, making it more convenient and affordable.

2. Implement high-speed rail networks: Develop and invest in high-speed rail systems that can provide a viable alternative to air travel for medium-distance journeys. This can reduce the demand for short-haul flights.

3. Encourage remote work and virtual meetings: Promote remote work policies and the use of video conferencing technology to reduce the need for business travel. This can significantly decrease the number of flights taken for meetings and conferences.

4. Improve local tourism: Encourage people to explore their own countries or regions by promoting local tourism. This can reduce the demand for international flights while supporting local economies.

5. Implement carbon pricing and taxes: Introduce taxes or carbon pricing mechanisms on air travel to make it more expensive and discourage unnecessary flights. The revenue generated can be invested in sustainable transportation alternatives.

6. Support research and development of sustainable aviation fuels: Invest in the development of sustainable aviation fuels that can reduce the carbon footprint of air travel. This includes exploring biofuels and other renewable energy sources for aircraft.

7. Encourage airlines to adopt more fuel-efficient aircraft: Provide incentives for airlines to upgrade their fleets to more fuel-efficient aircraft models. This can help reduce emissions and improve overall efficiency.

8. Raise awareness and promote responsible travel: Educate travelers about the environmental impact of air travel and encourage them to consider alternative options or reduce the frequency of their flights. Promote responsible travel practices, such as offsetting carbon emissions.

9. Optimize flight routes and reduce unnecessary flights: Airlines can work on optimizing flight routes to minimize fuel consumption and emissions. Additionally, reducing the number of empty or low-capacity flights can help decrease overall air travel.

10. Invest in research and development of alternative transportation technologies: Support research and development of innovative transportation technologies, such as electric planes or hyperloop systems, which could potentially revolutionize long-distance travel in the future.

It is important to note that reducing air travel should be balanced with economic and social considerations, as aviation plays a significant role in global connectivity and economic growth.