Report
The Nuclear Power Dilemma
More than one-third of US nuclear plants are unprofitable or scheduled to close. If they’re replaced by natural gas, emissions will rise—with serious consequences for the climate.
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UCS: What We Do
Breathtaking imagery from photographer Daniel Beltrá showcases the range of issues that UCS works on.
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How Do Hybrid Cars and Trucks Work?
Hybrids use an internal combustion engine—and can be fueled like normal cars—but also have an electric motor and battery.
Explainer
What Are Electric Cars?
Unlike conventional vehicles, electric cars and trucks use a motor powered by batteries or a fuel cell.
Report
Understanding California’s Transmission Development Delays and Paths to Reform
California’s investor-owned utilities have not delivered the transmission buildout to meet state goals, nor have they fully addressed the reasons for continued delays.