Natural gas

Using natural gas for internal combustion engines in place of gasoline and diesel not only reduces CO2 but also helps to clean up the air in general. Burning gasoline and diesel releases many organic carcinogens along with chemicals that produce acid rain. Natural gas does not do that. While the country is taking steps to fight climate change there is no reason why they couldn't immediately switch all transportation over to natural gas. It cost less, runs cleaner and reduces wear and tear on the engine. This change should have taken place years ago. That along with increasing dependence on nuclear for power plants while they are expanding wind and solar could have had a profound improvement on the climate problem.