Explainers
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How Bad Are Fossil Fuels Actually?
The true costs of coal, natural gas, and other fossil fuels aren’t always obvious—but their impacts can be disastrous.
Explainer
Attribution Science
Attribution science shows us precisely how much climate change is shaping and changing our world.
Explainer
Applications of Climate, Energy, and Environmental Justice
Assessing the key different types of justice (distributive, procedural, and restorative) within the climate and energy movements can be challenging.
Explainer
Environmental, Climate, and Energy Justice—What Do They Mean?
If you’ve encountered these concepts and aren’t totally sure what they mean—we got you.
Features
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UCS vs Anti-Science Actions
We're suing the Trump administration on a wide range of issues—and winning.
Feature
2025 UCS Science Defenders
The 2025 UCS Science Defenders share a special commitment to leverage science to help their communities. We are so pleased to introduce them, and their great work.
Feature
Dirty Air, Dirty Deeds
President Trump has given free rein to some of the most polluting industries in the country.
Feature
2025 Annual Report
Science won't be silenced.
Videos
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What are Indirect Source Rules?
Now, more than ever, state and local regulators and policy leaders must work toward a cleaner freight system – Indirect source rules are a foundational step forward.
Video
What is the Surface Transportation Reauthorization?
This federal legislation determines how transportation in the US is funded. It also shapes the country’s transportation system.
Video
Announcing our 2025 Annual Report
Thanks to your support, UCS has been monitoring and responding to unprecedented attacks on science. We're seeing success.
Video
UCS: What We Do
Breathtaking imagery from photographer Daniel Beltrá showcases the range of issues that UCS works on.
Podcasts
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The Age of Unreason
UCS Center for Science and Democracy Director Dr. Jennifer Jones joins Jess to discuss what the second Trump presidency means for science, and what you can do to defend science.
Podcast
Greening Our Growing
Ever wonder if agriculture and green energy can work together? The answer is yes, and Jess talks with UCS experts Dr. Angel Fernandez-Bou and Vivian Yang about farming and the future of energy in the United States.
Podcast
Road Rave
Jess hits the road to visit the Los Angeles Auto Show and talk with UCS electric vehicle expert Dr. Dave Reichmuth about what's hot in green vehicles.
Podcast
Science Will Not Be Silent
The 2024 election results are sending shockwaves through the scientific community, but we haven’t been caught flat-footed.