Advancements were made in earthquake and hurricane detection, insights were gained into coral reefs, and the discovery of an endangered gorilla population gave hope to the world. Scientists examine the planet's environmental health this year.
Meet the Garbage Moguls'ON THE JOB' VIDEOS:
Earth Day Celebration Features Ben Harper with Relentless 7.Learn About Live Broadcast
Win $20,000 to put it into action.Learn More
This year's state of the planet in-depth.Buy DVD
