Video: Earth Day This video promoting Earth Day 2013 was created to promote green initiatives on both a local and global scale. Celebrated on April 22 each year, Earth Day is a chance for people across the globe to do their part in protecting the environment for a better future.
Video: Tree City USA Plant trees in your town. Trees help clear our air, clean our water, and save our energy.
Video: How Wastewater Goes From Polluted to Pure
We'd rather not think about it, but the process of how sewage is transformed back into drinkable water is one of the great, underappreciated marvels of modern life.