All energy resources
Explainer
How Do Plug-in Hybrid Electric Cars Work?
Plug-in hybrid electric vehicles combine a gasoline or diesel engine with an electric motor and a large rechargeable battery.
Explainer
How Biopower Works
Biomass (plant material and animal waste) is the oldest source of renewable energy, used since our ancestors learned the secret of fire.
Report
Lights Out?
Our electricity system is at risk today from coastal flooding. Sea level rise will only make it worse. We must improve our electric grid to prepare for this current and growing threat.
Report
Rating the States on Their Risk of Natural Gas Overreliance
Two-thirds of US states may be putting their electricity consumers at financial risk because of an overreliance on natural gas.
Feature
Oils Aren’t Created Equal
The climate implications of using oil depend on where it comes from.
Explainer
The Solar Resource
Solar energy—power from the sun—is a vast, inexhaustible, and clean resource
Explainer
What is Oil Shale?
Oil shale is a dirty and expensive source of unconventional oil.
Feature
How Clean is Your Electric Vehicle?
Enter your ZIP code to see EV emissions in your area—or select specific EV models to see how they compare.
Report
Achieving 50 Percent Renewable Electricity in California
California can ramp up renewable energy to supply half its electricity with technology in place now—but improving the electricity grid will make it easier and more effective.
Report
Financing Clean Energy
"Green banks," institutions that use innovative financing initiatives to assist customers with developing clean energy, can help states increase investments in renewable energy and energy efficiency.
Video
The Climate Deception Dossiers
For nearly three decades, many of the world's largest fossil fuel companies have knowingly worked to deceive the public about the realities and risks of climate change.
Report
The Climate Deception Dossiers
Leaked documents show that the world's largest fossil fuel companies have deliberately deceived the public for nearly 30 years about the realities and risks of climate change.