What can we do to reduce pollution to help our environment? Objective The objective of this lesson is to communicate with students what pollution is, how humans contribute to pollution and what we can do to reduce pollution to help our environment. Background The background information needed for this lesson is what pollution is. Pollution is anything that makes the Earth dirty and unhealthy, affecting the land, air, and water. Pollution can be a wide variety of things including throwing out trash, driving a vehicle, dumping things into our oceans and rivers, and even spraying chemicals is a p Duration: 60 Minutes.