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Climate Science Legal Defense Fund

@csldf.org
7.4K followers 542 following 709 posts

The Climate Science Legal Defense Fund protects the scientific endeavor. Email lawyer@csldf.org if you’re a scientist in need of free legal advice.

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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...
CSLDF's 2025 Impact Report
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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...
Text graphic with CSLDF logo in the lower right corner. Text overlay reads "We've been selected for a CREDO grant! Vote for CSLDF: credodonations.com // Thank you!"
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Climate Science Legal Defense Fund @csldf.org · 10/06/2025
How it started: How it's going:
Screenshot of our March 3rd post calling out the current administration for firing federal scientists and how that will harm all of us, even the rich and powerful.Screenshot of a story from The Guardian titled "'Flying Blind': Florida weatherman tells viewers Trump cuts will harm forecasts.:
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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
Photo of a hand holding up a megaphone with the CSLDF logo in the foreground. Text overlay reads "We're not giving up."
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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 TreatmentsScreenshot 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...
Graphic of a raised fist holding the scales of justice. Text overlay reads "February Newsletter: Giving up is not an option."
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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
Gif of a scientist taking a water sample from a lake surrounded by trees. Text overlay reads "We needs scientists' voices more than ever. Help us help them" with the CSLDF logo.
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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...
Graphic of a silhouette of Trump's head from the side. Text overlay reads "January Newsletter: He's back."
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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...
Graphic of a silhouette of Trump's head from the side. Text overlay reads "January Newsletter: He's back."
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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
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 · 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
Headshot of Peter wearing a suit and tie. Text overlay reads "We are excited to announce that Peter Fontaine has joined our Board of Directors!" with the CSLDF logo in the foreground.
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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
Satellite video of a hurricane descending on Florida. Text overlay reads "Find us at AMS2025! Free legal advice for scientists; Navigating new frontiers of scientific advocacy." AMS2025 logo is included.
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Climate Science Legal Defense Fund @csldf.org · 14/01/2025
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
Satellite video of a hurricane descending on Florida. Text overlay reads "Find us at AMS2025! Free legal advice for scientists; Navigating new frontiers of scientific advocacy." AMS2025 logo is included.
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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
Photo of a pro-climate rally with a young Black woman shouting into a bullhorn. Text overlay reads "Get CSLDF alerts & information. Sign up for our monthly newsletter & get updates about the ongoing fight to protect science."
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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
Satellite video of a hurricane descending on Florida. Text overlay reads "Find us at AMS2025! Free legal advice for scientists; Navigating new frontiers of scientific advocacy." AMS2025 logo is included.
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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...
Picture of a statue of Lady Justice. Text overlay reads "Are you an attorney? Work with us!" with the CSLDF logo in the corner.
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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
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 · 30/12/2024
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
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 · 30/12/2024
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
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 · 20/12/2024
#ICYMI: Our December newsletter is a short look back at our work over this tumultuous year. buff.ly/3ZYbQA5
Photo of a sunset through trees that have dropped their leaves for the winter, with snow on the ground and some of the trees. Text overlay reads "December Newsletter: Reflecting on 2024"
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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
Headshot of a smiling Katharine resting her head on her hand. Text reads "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 Hayhoe, Atmospheric Scientist/Director, Texas Tech University's Climate Science Center
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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…
Photo of a sunset through trees that have dropped their leaves for the winter, with snow on the ground and some of the trees. Text overlay reads "December Newsletter: Reflecting on 2024"
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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
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.a
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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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