The use of fossil fuels is growing dramatically and the air is being polluted with carbon dioxide, carbon monoxide, nitrogen oxides and Sulphur dioxide which are the main greenhouse gases that lead to global warming and climate change. It is very essential that we control to the greatest extent possible the use of coal and petrol and diesel, which are mainly used in power plants, iron and steel and aluminium plants, industry and vehicular traffic. With the greater incidence of use of fossil fuels we are making the quality of the air that we breathe deteriorate and lead us to falling prey to mostly respiratory diseases that make our lives unhealthy. How do we control the use of fossil fuels?