CNG

Transportation has now passed power plants as the leading CO2 producer. This begs the question, why don't we use natural gas for transportation and get the same reduction in CO2 that we got by changing power plants over to natural gas. Not only does this improve air quality but gasoline cars average 32 miles per gallon while compressed natural gas cars (CNG) average 43 mph. There is less rare and tear leading to lower maintenance cost on CNG cars.