It is also important to remember that schools have put in place with local authorities many litter control programmes. Litter control is an important issue that is linked to pollution. For example, schools are now not only involved in waste issues but also in water conservation. If we do not control litter, we will have a problem with water supply. Many schools are now looking at the question of phosphates, detergent and disinfectants in the water supply. These are chemicals we are just throwing into the ground. The whole impact on our water supply from this pollution and the lack of litter control must be examined.