What are the Causes for Pollution Pollution : Fossil fuels are formed of carbon, hydrogen, nitrogen and sulphur. On burning they produce carbon dioxide, water, oxides of sulphur and nitrogen. In the presence of insufficient oxygen, carbon monoxide is produced instead of carbon dioxide.Carbon Monoxide : It readily combines with haemoglobin forming carboxyhaemoglobin. … [Read more...] about What are the Causes for Pollution