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Climate Science Legal Defense Fund @csldf.org · 16/06/2026

📢 Our 2026 Summer Matching campaign kicks off today! In our 15 years, we have never seen such egregious attacks on science. And with your support, we have never been more galvanized to stand up, fight back, and never give in. Donate today and have your gift doubled: csldf.org/donate

Photograph of four people with raised fists, one of whom has a megaphone. Text overlay reads "Climate Science Legal Defense Fund 2026 Summer Match Announcement"

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Climate Science Legal Defense Fund @csldf.org · 20/01/2026

8 years, 3 administrations, & 700+ entries later, we are excited to announce our revamped Silencing Science Tracker! This tool provides a way to document, challenge, & stop government attacks on science - & to hold those responsible accountable. silencingscience.org

Header image for the Silencing Science Tracker database

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Climate Science Legal Defense Fund @csldf.org · 29/12/2025

We were able to accomplish so much this year thanks to our generous community of pro-science supporters. And whatever 2026 brings, we are ready. Support our work before the end of the year & your gift will be doubled - meaning double the support for scientists. csldf.org/donate

Infographic of 2025 by the numbers. Summary: CSLDF helped 71 scientists with free legal help, logged 136 attacks on science in the Silencing Science Tracker, educated thousands with our workshops and free resources.

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Climate Science Legal Defense Fund @csldf.org · 30/10/2025

Even as an organization dedicated to supporting climate scientists, we have never seen an all-out assault like the past 10 months. But thanks to our pro-science supporters, we've been able to help more scientists than any other year in our nearly 15-year history. www.csldf.org/wp-content/u...

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Climate Science Legal Defense Fund @csldf.org · 05/08/2025

We've been selected as a CREDO Mobile grant recipient! Anyone can vote for one (or two, or all three) of the progressive organizations selected for August - including @csldf.org! - and help decide how the available funds will be split. Vote now: www.credodonations.com/organization...

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Climate Science Legal Defense Fund @csldf.org · 15/05/2025

We're kicking off our Summer Match! Thanks to an incredible group of supporters, all donations to @csldf.org up to $50,000 will be *doubled*. As a small yet mighty team fighting to protect & defend scientists, every gift - no matter the size - makes a huge difference. csldf.org/summer

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Climate Science Legal Defense Fund @csldf.org · 28/03/2025

Just weeks ago, we added an entry to the Silencing Science Tracker on RFK Jr's claims about vitamin A as a "miraculous treatment" for measles. It was infuriating to write that entry. Reading about the consequences is even more infuriating. climate.law.columbia.edu/content/hhs-...

Screenshot from the Silencing Science Tracker. Headline: "HHS Secretary Makes Misleading Claims about Measles Vaccine, Touts Alternative Treatments

Screenshot of a New York Times article. Headline: "Remedy Supported by Kennedy Leaves Some Measles Patients More Ill." Photo below the lede is of a doctor, woman, and young child in a doctor's office. The child is receiving a vaccine.

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Climate Science Legal Defense Fund @csldf.org · 12/03/2025

How it started: How it's going: Since 2017, we've tracked attempts to silence, misrepresent, or interfere with science. See the nearly 600 entries we & @sabincenter.bsky.social have added (and continue to add to): climate.law.columbia.edu/Silencing-Sc...

Screenshot of the first-ever Silencing Science Tracker entry titled "References to 'Climate Change' Removed from CDC Website"

Screenshot of the most recent Silencing Science Tracker entry titled "Federal Scientists and Officials Will Not Participate in UN Climate Science Meeting"

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Climate Science Legal Defense Fund @csldf.org · 11/03/2025

Our series of free Pocket Guides cover topics ranging from safeguarding online communications, to navigating the First Amendment, to how to handle legal intimidation & political harassment, & more: www.csldf.org/resources/?r...

Graphic of three scientists with oversized books and lab equipment. Text overlay reads "Scientists: Check out our library of free pocket guides on topics like the First Amendment, handling political & legal harassment, engaging with legislators, & much more."

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Climate Science Legal Defense Fund @csldf.org · 27/02/2025

The scope of the damage unfolding before us is grotesque and will take serious effort to overcome. But giving up is not an option. Our February newsletter is here: www.csldf.org/2025/02/27/f...

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Climate Science Legal Defense Fund @csldf.org · 24/02/2025

The 1st Amendment protects scientists who engage in advocacy & activism - even if they work for a federal agency. With @aclu.org, we created a guide for scientists who wish to be involved while minimizing negative repercussions: www.csldf.org/resource/fir...

Graphic of a man unrolling tape from across the mouth of an oversized head. Text overlay reads "Scientists: Find out how the 1st Amendment can protect you as you advocate for science"

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Climate Science Legal Defense Fund @csldf.org · 21/02/2025

Last year, @csldf.org provided pro bono legal help to a record-breaking *64* scientists facing harassment or abuse because of their critical research. Barely two months into 2025, we are already on track to blow past that number. Help us stand with scientists: www.csldf.org/donate

Photo of people at a climate rally holding pro-science placards. Text overlay reads "Number of researchers CSLDF has helped per year:" above three circles of increasing size. The circles say "2022: 42; 2023: 54; 2024: 64," respectively.

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Climate Science Legal Defense Fund @csldf.org · 19/02/2025

With science under attack in all areas of research, including climate change, repro health, & public health, political advocacy is more important than ever. @csldf.org offers free legal resources for scientists to engage safely & effectively in political advocacy. www.csldf.org/political-ac...

Photo of lots of people at a pro-science rally. Text overlay reads "Scientists: Learn how to speak out for science safely and effectively"

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Climate Science Legal Defense Fund @csldf.org · 12/02/2025

We have been overwhelmed & heartened by the huge influx of new donors, subscribers, & followers. With your support, we are able to carry out our mission of protecting & defending researchers from legal attacks, harassment, censorship, & more. Thank you for joining us in the fight! csldf.org/donate

Photo of a climate rally with a young Black woman shouting into a megaphone. Text overlay reads "Your support powers our work. Thank you for standing with us in support of climate science."

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Climate Science Legal Defense Fund @csldf.org · 08/02/2025

With so much uncertainty and fear in the air, one thing is certain - we are ALWAYS here to protect & defend researchers against abuse, harassment, unlawful firings, & other attempts to silence their critical work. Help us help them: www.csldf.org/donate

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Climate Science Legal Defense Fund @csldf.org · 04/02/2025

While climate scientists have been under attack for years, they are facing an increasing onslaught of politically motivated attacks in the current "post-truth" political environment. Check out our Pocket Guide to Handling Political Harassment & Legal Intimidation: www.csldf.org/resource/poc...

Graphic of two male silhouettes, one whose speech bubble has teeth and is about to eat the other's. Text overlay reads "Scientists: Learn how to prepare for politically or ideologically motivated challenges to your work."

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Climate Science Legal Defense Fund @csldf.org · 04/02/2025

ICYMI - From our January newsletter: "While there are already differences from his first term, there are also similarities to his earlier (disastrous) go-round." Read the full newsletter & see how we're fighting back. www.csldf.org/2025/01/30/j...

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Climate Science Legal Defense Fund @csldf.org · 31/01/2025

Attacks on scientists & the scientific endeavor have been growing, & we can safely assume they will continue to grow in number & intensity. We provide a lifeline to scientists seeking free legal help & education. But we can't do it without your support. www.csldf.org/donate

Photo of a male scientist in a marshy area measuring water levels. Text overlay reads "In 2024, we helped more scientists facing anti-science attacks and harassment than ever. Help us continue to help them."

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Climate Science Legal Defense Fund @csldf.org · 30/01/2025

January update: He's back. While there are already differences from his first term, there are also similarities to his first (disastrous) go-round. And this time, we are more prepared. Read more in our January newsletter: www.csldf.org/2025/01/30/j...

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Climate Science Legal Defense Fund @csldf.org · 29/01/2025

With science under attack in research areas such as climate change, reproductive health, & COVID-19, political advocacy is more important than ever. @csldf.org offers free legal resources for scientists to engage safely & effectively in political advocacy. www.csldf.org/political-ac...

Photo of a climate rally with a young Black woman speaking into a megaphone in front of many people holding signs. Text overlay reads "Scientists: Learn how to engage safely & effectively in political advocacy."

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Climate Science Legal Defense Fund @csldf.org · 27/01/2025

Our mission is simple: we provide free legal advice and assistance to researchers being targeted by bad actors trying to censor, misinterpret, or otherwise silence them. 646-801-0853 or lawyer@csldf.org for help.

Photo of several scientists at a large conference room table with laptops and cups of coffee. Text overlay reads "Scientists: Our mission is to support your mission. If you have a legal question related to your work or advocacy, contact us for free help."

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Climate Science Legal Defense Fund @csldf.org · 24/01/2025

We're still here & will be for as long as we are needed. Help us protect & defend scientists against fossil fuel-funded climate deniers with their very deep pockets: csldf.org/donate

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Climate Science Legal Defense Fund @csldf.org · 21/01/2025

We are pleased to introduce our newest @csldf.org board member, Peter Fontaine! He brings a wealth of climate-related legal experience, & we are excited to have him on board as we prepare for the challenges ahead. csldf.org/about

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Climate Science Legal Defense Fund @csldf.org · 18/01/2025

Want to get involved in the fight to protect & defend climate science? Become a monthly donor & help sustain our work - free legal support for researchers facing harassment & abuse, free educational guides & reports, tracking anti-science government actions, & much more. csldf.org/donate

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Climate Science Legal Defense Fund @csldf.org · 16/01/2025

We offer free guides to scientific integrity policies at federal agencies to help employees understand their rights & protect federal science. Check out our updated guides for NASA, USDA, & other agencies: www.csldf.org/resource/guides-to-sc…

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Climate Science Legal Defense Fund @csldf.org · 15/01/2025

The Silencing Science Tracker is at 550 entries & counting (yay...?). Check out the database, maintained by CSLDF & the Sabin Center for Climate Change Law, that tracks all the anti-science actions by local, state, & the federal government. buff.ly/3nDoSlv

Photo of a scientist in protective gear (bib overalls, hooded shirt, and respirator) taking a water sample near an industrial site. Text overlay reads "We've tracked 550 attempts (& counting) to interfere with the critical research scientists are doing in climate change, public health, and more."

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Climate Science Legal Defense Fund @csldf.org · 15/01/2025

We're at #AMS2025! Join us on Thursday for Navigating New Frontiers of Scientific Advocacy, or schedule a free, confidential 1:1 legal consultation with a @csldf.org attorney. csldf.org/events for more info

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Climate Science Legal Defense Fund @csldf.org · 14/01/2025

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Climate Science Legal Defense Fund @csldf.org · 10/01/2025

Hey new @bsky.app followers - we see you! 🥹 Did you know we also have a monthly newsletter? Sign up for alerts & hear even more about our work defending climate science, plus how you can help. eepurl.com/dfHVgb

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Climate Science Legal Defense Fund @csldf.org · 09/01/2025

We will be at AMS2025! Join Climate Science Legal Defense Fund for: - Navigating New Frontiers of Scientific Advocacy - Free, confidential 1:1 legal consultations with a CSLDF attorney More info at csldf.org/events

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Climate Science Legal Defense Fund @csldf.org · 07/01/2025

📣📣 We're hiring an attorney! Join our small but mighty team as we protect & defend climate scientists against anti-science attacks & harassment. We need your expertise now more than ever - join us. www.csldf.org/about/work-w...

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Climate Science Legal Defense Fund @csldf.org · 06/01/2025

We wish to thank everyone who so generously supported our matching fundraising campaign! Your support helps us to stand up for truth & science, & against tyranny & ignorance. www.csldf.org/donate

Photo of a pro-science rally with a young Black woman shouting into a megaphone. Text overlay reads "Your support powers our work. Thank you for standing with us in support of climate science."

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Climate Science Legal Defense Fund @csldf.org · 31/12/2024

We were able to accomplish so much in 2024 because of the support of people like you, who stand with us & with scientists against the onslaught of anti-science & anti-climate intimidation campaigns. Give now - before midnight! - & your gift will be DOUBLED: csldf.org/donate

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Climate Science Legal Defense Fund @csldf.org · 30/12/2024

We are grateful for the generosity of our donors. Your support powers our work & allows us to provide free legal advice aid to climate scientists who are being attacked & silenced by fossil fuel-funded bad actors. Donate before the end of the year & your gift will be DOUBLED: csldf.org/donate

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Climate Science Legal Defense Fund @csldf.org · 30/12/2024

We're closing out this roller coaster of a year with a look back at what we were able to accomplish in 2024, thanks to our generous supporters. Read about what we were up to this year, including the record-breaking 64 scientists we helped: www.csldf.org/2024/12/23/2...

Photo of a pro-science climate rally with a young Black woman yelling into a megaphone. Text overlay reads "2024 was quite a year. We are pausing to reflect on the many substantial wins for science & scientists."

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Climate Science Legal Defense Fund @csldf.org · 26/12/2024

From courtroom victories to whistleblower complaints, protecting academic freedoms, & defending against defamation, it has been yet another record-breaking year - & we are prepared for even more scientists coming to us for help in 2025. Help us help them & have your gift DOUBLED: csldf.org/donate

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Climate Science Legal Defense Fund @csldf.org · 20/12/2024

#ICYMI: Our December newsletter is a short look back at our work over this tumultuous year. buff.ly/3ZYbQA5

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Climate Science Legal Defense Fund @csldf.org · 20/12/2024

"I seriously considered, is it time to quit?... It was a tough choice, but at the end of those weeks, I decided to keep on going.” Katharine's story is just one in our series on scientists who have been harassed or threatened because of their work: buff.ly/42goOaL

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Climate Science Legal Defense Fund @csldf.org · 18/12/2024

2024 was a roller coaster. As we wrap up this turbulent year, we are grateful for the support of everyone standing with us on the frontlines of the war on science. www.csldf.org/2024/12/15/december-u…

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Climate Science Legal Defense Fund @csldf.org · 16/12/2024

While Freedom of Information laws are designed to promote transparency, they are too often misused to harass scientists & inhibit research in climate science & other fields. If you are a scientist facing invasive FOIA demands, we can help - 646-801-0853 or lawyer@csldf.org

Photo of a stressed out looking young Black woman pressing her fingertips into the bridge of her nose. Text reads "Facing invasive FOIA demands? If you have a legal question related to your work or advocacy, contact us for free help."

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Climate Science Legal Defense Fund @csldf.org · 13/12/2024

Curious about the free legal services we provide for scientists so they can understand their rights? We offer: ⚖️ Legal aid clinics at conferences 📚 Educational workshops & resources ‍🔬 Free legal advice & representation to scientists Learn more at hhttps://www.csldf.org/legal-services/

Photo of several scientists sitting at a large conference table with laptops and coffee cups. Text reads "Scientists: Our mission is to support your mission. If you have a legal question related to your work or advocacy, contact us for free help."

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Climate Science Legal Defense Fund @csldf.org · 12/12/2024

Hey fellow #AGU24 attendees - feeling all the feelings about the incoming administration? Come hang out with @csldf.org & other scientists as we share stories & figure out how to protect science. TODAY @ 5pm | Hall B-C (Poster Hall) – Pod 3 www.csldf.org/event/protec...

Photo of a male scientist wearing a collared shirt and tie, lab coat, and latex gloves holding his hands up and yelling at the sky. Text overlay reads "We're at AGU! Laugh / cry / hurl (or not) with fellow scientists & CSLDF as we discuss how to protect science."

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Climate Science Legal Defense Fund @csldf.org · 11/12/2024

Since 2016, @CSLDF & @sabincenter have run the #SilencingScience Tracker to document attacks on science. There are 550 entries - & counting - which include interference with the critical work scientists are doing in areas like climate change, public health, & more. buff.ly/3nDoSlv

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Climate Science Legal Defense Fund @csldf.org · 11/12/2024

📣📣 We're hiring an attorney! Join the fight to protect and defend the scientific endeavor. www.csldf.org/about/work-w...

Picture of a statue of Lady Justice with a blindfold and holding a set of scales in an upraised hand and a sword by her side. Text overlay reads "Are you an attorney? Work with us!"

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Climate Science Legal Defense Fund @csldf.org · 11/12/2024

Since November, we have seen a sharp increase in the number of scientists reaching out to us for free legal advice & assistance ahead of the incoming administration. We are here to support them, but we need your help to meet the growing need. csldf.org/donate

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Climate Science Legal Defense Fund @csldf.org · 10/12/2024

Emails, social media, blogs, & other digital platforms can leave scientists vulnerable to new kinds of harassment & attacks. Minimize the risks of negative consequences & learn how to respond to harassment: buff.ly/3GQnxhY

Graphic of a laptop with email, chat, and video player icons on and around it. Text overlay reads "Learn how to more safely express personal views & engage in activism online."

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Climate Science Legal Defense Fund @csldf.org · 10/12/2024

Scientists: are you at #AGU24? So is @csldf.org! Join us for a free, confidential, 1:1 legal consultation, or attend a session on how to safely engage in scientific advocacy. All events: csldf.org/events Sign up for a consultation: calendly.com/cmarchesano/...

Photo of CSLDF Attorney Chris Marchesano in front of a poster at AGU 2023. Text overlay reads "We're at AGU! Join us for free legal advice, plus sessions on scientific activism and ways to promote science."

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Climate Science Legal Defense Fund @csldf.org · 09/12/2024

Scientists: are you at @agu.org? So are we! Join us for free, confidential legal advice, or attend a session on how to safely engage in scientific advocacy: www.csldf.org/events

Photo of Chris Marchesano posing with arms outstretched in front of a presentation projected on a screen. Text overlay reads "We're at AGU! Free legal advice for scientists; Open discussion: scientific neutrality and career risks of activism; navigating new frontiers of scientific advocacy; promoting science by serving as an expert witness"

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Climate Science Legal Defense Fund @csldf.org · 06/12/2024

#GivingTuesday might be over, but the need for our services is still growing. Whatever January brings, @CSLDF.org will be here to support scientists with free legal, educational, & other support. Help us help them. www.csldf.org/donate

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