The aim of this lecture is to present on how do we Pollute our Environment. Here briefly present on air pollution, water pollution, land pollution and fossil fuels. Using chemical fertilizers, insecticides and herbicides to increase production actually pollutes the air, soil and water with toxic chemicals. Other ways we pollute is by throwing things into drains, which lead to rivers, lakes, or oceans, and sometimes end up, on our beaches. Also when we throw things into drains and they end in the ocean sometimes sea animals mistake it for food and then die because of illness.