Explainers, Videos &amp; More

Volkswagen employee demonstrating disassembly of an electric car battery

All About EV Battery Recycling

Recycling could meet a measurable amount of demand for battery materials as more EVs come on the road.

photo of a tractor in a turned-over field pulling a trailer with two tanks of anhydrous ammonia fertilizer that is being sprayed on the field; farm buildings and silos are in the distance

What’s Wrong with Fossil Fuel–Based Fertilizer?

Massive overapplication of nitrogen fertilizer in agriculture damages soil, causes pollution, and contributes to climate change.

What is Climate Loss and Damage?

Wealthy, polluting nations should pay for climate damages.

Dr. Conrad Examines Native Boy on Kwajalein

What is Nuclear Testing?

A resumption would increase the risk of nuclear war.

Features

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2023 UCS Science Defenders

The 2023 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.

Person with hat and glasses hoisting up a solar panel

2023 Annual Report

How did UCS perform over the last year?

Danger Season 2023

This tool, updated daily, shows how many people across the United States face risks right now from climate impacts.

2022 UCS Science Defenders

At the end of every year, UCS celebrates a few individuals who have done something outstanding to defend science, and/or used science in some way to help people and change the world for the better.

Videos

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EV Benefits

EVs can yield consumers significant savings on refueling costs, they are low maintenance, and they're fun to drive.

The Infuriating Link Between Wildfires and Fossil Fuel Companies

Groundbreaking science shows how oil and gas companies bear at least some responsibility for worsening forest fires.

Federal Scientists Survey 2023

The latest Union of Concerned Scientists survey of federal scientists shows the powerful, positive effects of strengthening scientific integrity policies under President Biden.