Political action. Effective greenhouse gas taxation is a single thing that could solve the issue with the current system and be efficient. * It would have to

Political action. Effective greenhouse gas taxation is a single thing that could solve the issue with the current system and be efficient. * It would have to be significantly higher than today. * It would tax exported emissions. * It would be well designed to avoid loopholes. It would include CO2 produced by food production (especially meat) and CO2 emissions from concrete.