Want to save the planet? Start by saving water!
The Earth is alive! Learn how the Earth's biosphere—its organisms, soil, water, and atmosphere—all work together.
How do living things interact with their environment? Learn more in this 14-minute video that focuses on the ecosystem in Yellowstone National Park.
How do you diagnose a sick stream? Find out in this eight-minute video from the Smithsonian.
What can you do to help endangered species? It's simple. You can really help!
Want to know how to save the environment? Want to look after planet earth? Click here!