4.4 Cleaner Fuels
Burning any fuel that contains carbon produces carbon dioxide.
Carbon dioxide is a greenhouse gas that many scientists believe id causing global warming.
Incomplete combustion of these fuels produces the poisonous gas carbon monoxide.
It can also produce particulates that reflect the sunlight, causing global dimming.
We can remove harmful substances from waste before they are released into the atmosphere
Exhaust systems of cars are fitted with catalytic converters to remove carbon monoxide and nitrogen oxides.