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Climate
Report
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Decades of Deceit

Why the case against the major fossil fuel companies for fraud and climate damages is so strong.

Climate Change

Climate change is one of the most devastating problems humanity has ever faced—and the clock is running out.

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Defend FEMA and disaster-impacted communities.

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Energy
Activist Resource
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The Electric Utility Toolkit

A set of resources and ideas for making a more just and inclusive power grid.

Energy

The energy choices we make today could make or break our ability to fight climate change.

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Demand power plant outage information be made public.

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Transportation
Report
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Making the Most of Electric Vehicle Batteries

With smart policies and investments, the US can reduce the need for newly mined lithium by nearly half.

Transportation

Our transportation system is outdated and broken—and it needs to change.

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Tell Congress we need electric vehicle infrastructure nationwide.

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Food
Report
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Wetlands in Peril

Protecting wetlands in the Upper Midwest from industrial agriculture could prevent up to $754 billion in residential flood damages.

Food and Farms

The US food system should be providing healthy, sustainable food for everyone. Why isn’t it?

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The farm bill must center communities, not corporations.

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Nuclear Weapons
Activist Resource
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An Activist's Guide to Radiation and Human Health

Essential readings for understanding the world of radiation, radioactive materials, and the threats they pose to human health

Nuclear Weapons

They’re the most dangerous invention the world has ever seen. Can we prevent them from being used again?

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Tell Congress: No more nuclear weapons testing.

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Science & Democracy
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Scientific Societies Call on Congress to Save Science

This open letter, signed by more than 40 prominent scientific societies and organizations, was delivered to Congress in March 2025.

Science and Democracy

Democracy and science can be powerful partners for the public good—and both are under attack.

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Help strengthen scientific integrity at federal agencies.

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Press Release
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November 20, 2023

UNEP Emissions Gap Report Confirms World Far Off Track from Climate Goals, Policymakers Must Take Urgent Transformative Action

Blog series
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Accelerating Clean Energy Ambition

UCS experts unpack the details behind the Accelerating Clean Energy Ambition analysis.
Report
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Accelerating Clean Energy Ambition

With concerted action, the US can meet its climate goals—and see huge benefits to the economy and public health.
Feature
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2023 Annual Report

How did UCS perform over the last year?
Download
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2023 Annual Report (PDF)

The complete 2023 annual report, including campaign highlights and a detailed financial statement.
Press Release
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November 16, 2023

Un estudio realizado por UCS revela que EE.UU. puede obtener importantes beneficios económicos y de salud al cumplir con sus objetivos climáticos

Press Release
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November 16, 2023

UCS Study Finds US Can Reap Significant Economic, Health Benefits from Meeting Climate Goals

Press Release
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November 16, 2023

Sentencing of Cyberattack Perpetrator Spotlights Illegal Hacking Operation Targeting Critics of ExxonMobil’s Climate Deception

Position statement
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The UCS Position on a Fossil Fuel Phaseout

We support a fast and fair phaseout of fossil fuels around the world.
Podcast
This is Science with Jess Phoenix Episode 15: What's Science Fiction is Prologue

What’s Science Fiction is Prologue

Jess talks with Chuck Wendig, whose writing is both wildly creative and extraordinarily prescient.

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