Activism: The decision to change a particular social, environmental, or political issue.  You can be an activist against air pollution.

Air Pollution:  The human introduction of chemicals into the air that damages the environment.  Do you want to live in a city with a lot of air pollution?

Carbon Footprint:  The measure of the impact human activities has on the environment.  This impact is measured by the amount of green house gases produced.  What is your carbon footprint?

Global Warming:  Global warming refers to an average increase in the earth’s temperature, which causes climate change.  A warmer earth may lead to changes in the sea level, rainfall patterns, a loss of glaciers, and other negative impacts on wildlife and humans.  If there were no glaciers, where would the polar bears live?

Pollutants:  Substances not naturally found in the air or that are found at greater concentrations in the air.  Can you give an example of a pollutant?

Telecommute:  To work from home and therefore not take a car or bus to work.  Telecommuting is fun, and you can stay in your pajamas all day!