Invention Nation: Natural Water Treatment Channel: Planet Green Length: 186 Date: June 03, 2009 One company has found a way to clean water in a toxin-free natural sewage treatment facility with exotic plants.

Invention Nation: Natural Water Treatment Channel: Planet Green Length: 186 Date: June 03, 2009 One company has found a way to clean water in a toxin-free natural sewage treatment facility with exotic plants.

Invention Nation: Biodiesel Channel: Planet Green Length: 219 Date: May 15, 2009 The boys learn make biodiesel fuel from vegetable oil.

Invention Nation: Biodiesel Channel: Planet Green Length: 219 Date: May 15, 2009 The boys learn make biodiesel fuel from vegetable oil.

Tech: Underwater Turbines Pump Out Energy Channel: Planet Green Length: 154 Date: April 17, 2009 Parts of New York City are getting their power from underwater turbines. Kasey-Dee Gardner finds out more about this type of renewable energy.

Tech: Underwater Turbines Pump Out Energy Channel: Planet Green Length: 154 Date: April 17, 2009 Parts of New York City are getting their power from underwater turbines. Kasey-Dee Gardner finds out more about this type of renewable energy.

Ecopolis: Recycling Waste Channel: Planet Green Length: 164 Date: April 17, 2009 This scientist believes that he has found a way to turn liquid sewage into safe drinking water.

Ecopolis: Cooling Sound Waves Channel: Planet Green Length: 202 Date: April 17, 2009 Imagine a technology that uses sound waves for refrigeration. This scientist believes his discovery can save the planet.

Ecopolis: Cooling Sound Waves Channel: Planet Green Length: 202 Date: April 17, 2009 Imagine a technology that uses sound waves for refrigeration. This scientist believes his discovery can save the planet.

Ecopolis: Cooling Sound Waves Channel: Planet Green Length: 202 Date: April 17, 2009 Imagine a technology that uses sound waves for refrigeration. This scientist believes his discovery can save the planet.