While washing your car, park it on the grass; otherwise, cleaning chemicals and other pollutants picked up by the water was into storm drains and on to rivers and lakes. Grass and other vegetation help filter pollutants.

Change One Thing

This summer, buy locally grown fruits and vegetables. When you shop local, you help offset greenhouse gas emissions and other pollutants associated with the transportation of food. Plus, you're supporting the farmers in your own community! Buying local just makes good sense.

Source: http://www.davidsuzuki.org/NatureChallenge