If I were heading an international health organization, I would suggest implementing stricter regulations on emissions from vehicles and industries. This could include setting limits on the amount of pollutants that can be released into the air and enforcing penalties for companies that exceed those limits. Additionally, promoting the use of clean energy sources, such as wind and solar power, can help reduce air pollution. Investing in public transportation and encouraging people to use it can also help reduce the number of cars on the road, further reducing air pollution.