2026 Summer Match

We have never been more galvanized as a community to stand up, fight back, and never give in.

15 Years of Defending Science

Since 2011, CSLDF has helped scientists stand up against attempts to silence them.

2025 Year in Review

2025 was challenging in many ways—some we expected and others we could never have anticipated.

ALERT: Silencing Science Tracker

Check out our revamped database of government attacks on science.

Protecting the Scientific Endeavor

Science Under Siege

The Climate Science Legal Defense Fund has fought for the scientific endeavor since 2011. Our initiatives ensure that scientists can conduct, publish, and discuss their research and advocate for science without the threat of political harassment, censorship, or legal intimidation.

2026 Impact Report

Our latest report is a testament to what we can achieve when we stand united even against the most powerful anti-science forces.

Political Action Toolkit

Our free legal resources explain the best practices for safely and effectively engaging in political advocacy.

Climate Litigation Toolkit

Our free legal resources explain the best practices for safely and effectively engaging in climate litigation and other scientific consulting work.

Updated Report: Open Records Laws

These laws, while critical to government transparency, are frequently misused by groups seeking to harass scientists and slow or halt the scientific endeavor. This report can help scientists and attorneys respond to such inquiries.

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Our Work

We provide free legal aid and resources to researchers, educate the scientific community about their rights and responsibilities, and strengthen legal protections to promote scientific integrity.

Silencing Science Tracker

The Silencing Science Tracker is a public database that tracks government efforts to restrict, censor, undermine, and misrepresent science since the November 2016 election. To date, we have documented more than 700 attacks on science. We catalog government efforts to restrict, censor, undermine, and misrepresent science.

Safeguarding Scientific Integrity

We promote scientific integrity reforms to ensure the best available research and data inform government decision-making. And we publish resources to advance understanding of how research institutions and federal agencies approach scientific integrity — and how to strengthen legal protections for science and scientists.

Latest Resources and Activities

Scientists: Know Your Rights 

The legal risks for any individual scientist are small, but there are actions you can take to protect and defend yourself, especially if you’re involved in scientific advocacy and activism.

Our Expertise in the News

  • Climate scientists face deluge of public-records requests about fossil-fuel studies

    Climate researchers are facing a deluge of public records requests related to climate attribution science, which is playing a growing role in lawsuits against major industrial polluters. The volume of requests has noticeably increased this year, says Lauren Kurtz, CSLDF Executive Director. “It’s totally a surge,” she adds.

  • September update: Science + Democracy

    Science + Democracy: resources for you Science and democracy are inextricably linked. Scientists seek answers to challenges that affect all…

  • Inside the anti-climate campaign against researchers

    Amid the growing push by the Trump administration to block lawsuits against fossil fuel companies, conservative organizations are filing dozens of open records requests at public universities–the latest strategy in a decades-long campaign to discredit climate scientists. “I have never seen this many open records requests in such a short time,” said Lauren Kurtz, CSLDF executive director. “There is a very concerted effort to derail the state climate litigation cases going on.”

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Your support helps us fight for scientists and defend scientific integrity.

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