Investigate with the Car Talk radio hosts to learn more about newer, fuel-efficient cars. Join in on their analysis of what it will take to make our vehicles energy-efficient, and to secure a sustainable future for our environment. The...

Consumers often look for the Energy Star seal when buying appliances and devices. But is this a useful parameter when so many products meet this standard? And what other strategies could be used to change a person's behavior so that they...

NOVA labs presents this series of 8 videos that focus on energy consumption, and smarter ways to transport, store, and use energy.

When thinking about energy efficiency, how much emphasis should be put on human behavior rather than technology?

Military leaders are fighting a battle of a different kind -- over rising energy use and logistics issues. We'll talk about efforts to increase efficiency and move to greener energy sources within the armed forces.

How will energy efficiency standards affect light bulb design?

The gravity-powered device uses a weight to generate up to 30 minutes of light as it descends.