Union of Concerned Scientists
@ucs.org
The Union of Concerned Scientists puts rigorous, independent science to work to solve our planet's most pressing problems.
ucs.org
ucs.org
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🎁 While mega e-commerce warehouses are delivering more packages, they’re wrapping our neighborhoods with clouds of pollution. Let’s make sure that clean air is on everyone’s wishlist and hold big corporations accountable! #CleanDeliveries
Click here: electrifyny.org/warehouses
Click here: electrifyny.org/warehouses
November 25, 2025 at 5:59 PM
🎁 While mega e-commerce warehouses are delivering more packages, they’re wrapping our neighborhoods with clouds of pollution. Let’s make sure that clean air is on everyone’s wishlist and hold big corporations accountable! #CleanDeliveries
Click here: electrifyny.org/warehouses
Click here: electrifyny.org/warehouses
"Gratitude is powerful. It’s both something we offer up and, when we mean it, it’s a gift we give ourselves that can help us to hold grief, move anger, and bring us into right relation with what is." UCS's Erika Spanger shares a few reasons to feel grateful, even in this challenging climate moment.
Giving Thanks in This Climate Moment
It's a time to be defiant, but also compassionate.
blog.ucs.org
November 25, 2025 at 4:28 PM
"Gratitude is powerful. It’s both something we offer up and, when we mean it, it’s a gift we give ourselves that can help us to hold grief, move anger, and bring us into right relation with what is." UCS's Erika Spanger shares a few reasons to feel grateful, even in this challenging climate moment.
Every person in the US was hit by at least one extreme weather alert between May and October 2025. Juan Declet Barreto’s latest blog reviews #DangerSeason 2025 and how the Trump administration's attacks on science are worsening these impacts.
Blog: act.ucsusa.org/4rjUGII
Blog: act.ucsusa.org/4rjUGII
November 24, 2025 at 5:34 PM
Every person in the US was hit by at least one extreme weather alert between May and October 2025. Juan Declet Barreto’s latest blog reviews #DangerSeason 2025 and how the Trump administration's attacks on science are worsening these impacts.
Blog: act.ucsusa.org/4rjUGII
Blog: act.ucsusa.org/4rjUGII
Reposted by Union of Concerned Scientists
Political appointees should not be dictating the scientific conclusions of federal science agencies. This is wildly inappropriate of Secretary Kennedy and devastatingly dangerous for public trust in the CDC as a scientific authority.
www.nytimes.com/2025/11/21/u...
www.nytimes.com/2025/11/21/u...
Kennedy Says He Told C.D.C. to Change Website’s Language on Autism and Vaccines
www.nytimes.com
November 21, 2025 at 11:42 PM
Political appointees should not be dictating the scientific conclusions of federal science agencies. This is wildly inappropriate of Secretary Kennedy and devastatingly dangerous for public trust in the CDC as a scientific authority.
www.nytimes.com/2025/11/21/u...
www.nytimes.com/2025/11/21/u...
"Data center facilities are being constructed in pursuit of AI products, and just one of these data centers can consume multiple cities’ worth of power, leading to rocketing demand for new energy sources that can increase electricity bills for everyday ratepayers in often opaque ways."
What’s Next After Louisiana’s Gas Plant Approval for Meta Data Center
Just one of these data centers can consume multiple cities’ worth of power, leading to rocketing demand for new energy sources that can increase electricity bills for everyday ratepayers in often opaque ways.
blog.ucs.org
November 23, 2025 at 5:12 PM
"Data center facilities are being constructed in pursuit of AI products, and just one of these data centers can consume multiple cities’ worth of power, leading to rocketing demand for new energy sources that can increase electricity bills for everyday ratepayers in often opaque ways."
“COP30 was supposed to be the COP of truth and implementation. Unless nations reckon with the ugly truths revealed here, there will be major repercussions for multilateral climate agreements and more importantly, for the lives of communities who are on the frontlines of the climate crisis.”
#COP30
#COP30
COP30 Barely Delivers, Rich Nations Continue to Force Inequitable Climate Outcomes
COP30 barely delivers on adaptation, climate finance, fossil fuel phaseout, but important just transition progress made
www.ucs.org
November 22, 2025 at 5:46 PM
“COP30 was supposed to be the COP of truth and implementation. Unless nations reckon with the ugly truths revealed here, there will be major repercussions for multilateral climate agreements and more importantly, for the lives of communities who are on the frontlines of the climate crisis.”
#COP30
#COP30
Reposted by Union of Concerned Scientists
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. If you or someone you know needs help: csldf.org/contact
Contact - Climate Science Legal Defense Fund
CONTACT If you’re a scientist and would like a free, confidential consultation with one of our attorneys, please reach out.…
csldf.org
November 21, 2025 at 7:17 PM
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. If you or someone you know needs help: csldf.org/contact
Reposted by Union of Concerned Scientists
🛢️ Big Oil ramped up Google Ads in Brazil by 2,900% in just one month ahead of #COP30, according to new research from @caadcoalition.bsky.social @climainfo.org.br & @c3ds.bsky.social.The surge reflects the industry’s push to protect its social license to pollute.
Climate Action Against Disinformation | A 2,900% Increase in Greenwash: Big Oil Targeted Brazil With Google Ads To Undermine COP30
In the 10 months leading up to COP30, in Belém, Brazil, Big Oil increased its use of Google Ads targeting the country, with the number of adverts spiking by 2,900% between September and October…
buff.ly
November 21, 2025 at 10:00 AM
🛢️ Big Oil ramped up Google Ads in Brazil by 2,900% in just one month ahead of #COP30, according to new research from @caadcoalition.bsky.social @climainfo.org.br & @c3ds.bsky.social.The surge reflects the industry’s push to protect its social license to pollute.
Today, the COP Presidency released new negotiation text, including an updated Mutirão package, which is much weaker than the earlier version, dropping mention of a roadmap for a just transition away from fossil fuels, "a glaring omission of an urgent call championed here by more than 80 countries.”
Adaptation Finance Low-Balled, Glaring Omission of Just Transition Away from Fossil Fuels in New COP30 Text
Glaring omission of fossil fuel phaseout, just transition, adaptation finance in new COP30 draft negotiating text, Mutirao
www.ucs.org
November 21, 2025 at 5:00 PM
Today, the COP Presidency released new negotiation text, including an updated Mutirão package, which is much weaker than the earlier version, dropping mention of a roadmap for a just transition away from fossil fuels, "a glaring omission of an urgent call championed here by more than 80 countries.”
Threats of political violence are a hallmark of authoritarian regimes and a direct attack on US democracy, the Constitution, and the rights and freedoms of people across the country. They put lives at risk, and they are unacceptable.
Trump accuses Democrats of 'seditious behavior, punishable by death,' for urging military to ignore illegal orders
Trump called for the Democratic lawmakers to be "arrested and placed on trial" in social media posts.
www.nbcnews.com
November 21, 2025 at 4:25 PM
Threats of political violence are a hallmark of authoritarian regimes and a direct attack on US democracy, the Constitution, and the rights and freedoms of people across the country. They put lives at risk, and they are unacceptable.
When you think about pollution sources, you might not picture the green fields of a farm. But fertilizer overuse in agriculture takes a major toll on the environment and is accelerating the climate crisis. UCS’s Omanjana Goswami explains more in her new blog.
Half Wasted: Fertilizer Overuse, Pollution, and the Global Nitrogen Cycle
Fertilizer overuse is accelerating the climate crisis. Farmers often shoulder the financial and environmental burden of trying to manage risks in a system that incentivizes overapplication.
blog.ucs.org
November 21, 2025 at 4:05 PM
When you think about pollution sources, you might not picture the green fields of a farm. But fertilizer overuse in agriculture takes a major toll on the environment and is accelerating the climate crisis. UCS’s Omanjana Goswami explains more in her new blog.
Reposted by Union of Concerned Scientists
🚨 BIG NEWS from #COP30:🇨🇴Colombia and 🇳🇱the Netherlands will co-host the 1st International Conference on the Just Transition Away from Fossil Fuels in Santa Marta, Colombia – April 28–29, 2026.
November 21, 2025 at 2:36 PM
🚨 BIG NEWS from #COP30:🇨🇴Colombia and 🇳🇱the Netherlands will co-host the 1st International Conference on the Just Transition Away from Fossil Fuels in Santa Marta, Colombia – April 28–29, 2026.
Reposted by Union of Concerned Scientists
🔬 "Both science and democracy share a normative commitment to experimentalism as the best way forward." - Astrid Caldas, Senior Climate Scientist, UCSUSA, informs us on the importance of science in order to build democracy. Wedonthavetime PIK_Climate UNDP UNFCCC
November 20, 2025 at 3:01 PM
🔬 "Both science and democracy share a normative commitment to experimentalism as the best way forward." - Astrid Caldas, Senior Climate Scientist, UCSUSA, informs us on the importance of science in order to build democracy. Wedonthavetime PIK_Climate UNDP UNFCCC
Reposted by Union of Concerned Scientists
Who’s surprised? #DHS Sec. #KristiNoem changes draft FEMA review council report. Former #FEMA head Cameron Hamilton asks blunt Q. “What degree of confidence do you have that the report that you submit to DHS will be what is submitted to the president?”
www.washingtonpost.com/politics/202...
www.washingtonpost.com/politics/202...
Noem at odds with Trump-appointed panel over future of FEMA
Instead of further shrinking and dismantling FEMA, the FEMA Review Council wants to make it more independent.
www.washingtonpost.com
November 20, 2025 at 6:01 PM
Who’s surprised? #DHS Sec. #KristiNoem changes draft FEMA review council report. Former #FEMA head Cameron Hamilton asks blunt Q. “What degree of confidence do you have that the report that you submit to DHS will be what is submitted to the president?”
www.washingtonpost.com/politics/202...
www.washingtonpost.com/politics/202...
A new report from @oilchange.bsky.social finds that the US govt gives the #FossilFuel industry a handout of $34.8 BILLION dollars in subsidies every year — even as everyday people struggle with the cost of living and the climate crisis grows worse & worse.
Read more: oilchange.org/publications...
Read more: oilchange.org/publications...
November 20, 2025 at 7:05 PM
A new report from @oilchange.bsky.social finds that the US govt gives the #FossilFuel industry a handout of $34.8 BILLION dollars in subsidies every year — even as everyday people struggle with the cost of living and the climate crisis grows worse & worse.
Read more: oilchange.org/publications...
Read more: oilchange.org/publications...
Strong employee experience practices boost satisfaction, prevent burnout and build a motivated, equity-centered workforce. Join @green2-0.bsky.social and leaders including UCS’s president @gretchentg.bsky.social to discuss strengthening our sector.
Register: us02web.zoom.us/webinar/regi...
Register: us02web.zoom.us/webinar/regi...
November 20, 2025 at 6:01 PM
Strong employee experience practices boost satisfaction, prevent burnout and build a motivated, equity-centered workforce. Join @green2-0.bsky.social and leaders including UCS’s president @gretchentg.bsky.social to discuss strengthening our sector.
Register: us02web.zoom.us/webinar/regi...
Register: us02web.zoom.us/webinar/regi...
On top of the Trump administration’s blatant weaponization of the recently concluded government shut down, the scientific work of federal agencies decreased immensely during this time period, endangering advancements in research and the health and safety of all those who benefit from it.
The Shutdown Ends, but Threats to Science Go On
As the administration tightens its grip on the federal government, its campaign against federal government science continues.
blog.ucs.org
November 20, 2025 at 5:00 PM
On top of the Trump administration’s blatant weaponization of the recently concluded government shut down, the scientific work of federal agencies decreased immensely during this time period, endangering advancements in research and the health and safety of all those who benefit from it.
Reposted by Union of Concerned Scientists
Today: Join me, @lewan.bsky.social, and @ucs.org colleagues to discuss how the scientific community can push back against the growing authoritarian threat and stand up for our democracy.
secure.ucs.org/a/2025-11-20...
secure.ucs.org/a/2025-11-20...
How Scientists Can Stand Up for Democracy
The Union of Concerned Scientists invites you to a virtual science advocacy training on how the scientific community can push back against the growing authoritarian threat and stand up for our democra...
secure.ucs.org
November 20, 2025 at 2:57 PM
Today: Join me, @lewan.bsky.social, and @ucs.org colleagues to discuss how the scientific community can push back against the growing authoritarian threat and stand up for our democracy.
secure.ucs.org/a/2025-11-20...
secure.ucs.org/a/2025-11-20...
When the government fails to provide trusted scientific information, people get hurt. This is why we need independent science outside of government right now. (🧵)
CDC in turmoil after agency backpedals on debunking vaccines-autism link
The CDC’s website now says health authorities ignored evidence of a potential connection between vaccines and autism, despite dozens of studies showing no link.
wapo.st
November 20, 2025 at 2:38 PM
When the government fails to provide trusted scientific information, people get hurt. This is why we need independent science outside of government right now. (🧵)
Reposted by Union of Concerned Scientists
NEW: CSS leaders endorsed the EXPERTS Act, reintroduced today by @jayapal.house.gov and @warren.senate.gov.
The bill would restore and modernize the federal regulatory system, which has been corrupted by Trump, the courts, and corporate lobbyists.
sensiblesafeguards.org/press/expert...
The bill would restore and modernize the federal regulatory system, which has been corrupted by Trump, the courts, and corporate lobbyists.
sensiblesafeguards.org/press/expert...
EXPERTS Act Would Restore and Modernize the Federal Regulatory System, Which Has Been Corrupted by Trump, Courts, and Corporate Lobbyists
EXPERTS Act Would Restore and Modernize the Federal Regulatory System, Which Has Been Corrupted by Trump, Courts, and Corporate Lobbyists For Immediate Release: November 19, 2025 Contact: David Rosen,...
sensiblesafeguards.org
November 19, 2025 at 7:17 PM
NEW: CSS leaders endorsed the EXPERTS Act, reintroduced today by @jayapal.house.gov and @warren.senate.gov.
The bill would restore and modernize the federal regulatory system, which has been corrupted by Trump, the courts, and corporate lobbyists.
sensiblesafeguards.org/press/expert...
The bill would restore and modernize the federal regulatory system, which has been corrupted by Trump, the courts, and corporate lobbyists.
sensiblesafeguards.org/press/expert...
Join us tomorrow!
🧪🗳️Scientists and experts around the country: we need your voice now! Please join us November 20 for a virtual training on how the scientific community can stand up for our democracy and push back against the growing authoritarian threat in the US. Register here: act.ucsusa.org/44007SY
November 19, 2025 at 8:33 PM
Join us tomorrow!
TOMORROW at #COP30: UCS’s Dr. Astrid Caldas will deliver a keynote on the growing attacks on science and their impact on our democracy.
Join the live discussion hosted by @wedonthavetime.bsky.social
📅 November 20
⏰ 11:30–12:30 p.m. BRT / UTC -3
🔴 Livestream: www.youtube.com/watch?v=aEIA...
Join the live discussion hosted by @wedonthavetime.bsky.social
📅 November 20
⏰ 11:30–12:30 p.m. BRT / UTC -3
🔴 Livestream: www.youtube.com/watch?v=aEIA...
November 19, 2025 at 8:01 PM
TOMORROW at #COP30: UCS’s Dr. Astrid Caldas will deliver a keynote on the growing attacks on science and their impact on our democracy.
Join the live discussion hosted by @wedonthavetime.bsky.social
📅 November 20
⏰ 11:30–12:30 p.m. BRT / UTC -3
🔴 Livestream: www.youtube.com/watch?v=aEIA...
Join the live discussion hosted by @wedonthavetime.bsky.social
📅 November 20
⏰ 11:30–12:30 p.m. BRT / UTC -3
🔴 Livestream: www.youtube.com/watch?v=aEIA...
“This is the first time the United States has not send an official federal government delegation here to COP, and that is a very sobering, shameful moment,” said UCS’s Rachel Cleetus to Deutsche Welle from #COP30.
November 19, 2025 at 7:33 PM
“This is the first time the United States has not send an official federal government delegation here to COP, and that is a very sobering, shameful moment,” said UCS’s Rachel Cleetus to Deutsche Welle from #COP30.
Today at #COP30: advocates from the US Gulf South, Latin America & Africa protested the unchecked expansion of massive new gas projects, which harm communities & undermine climate goals.
This is part of a global call for a fossil fuel phaseout, which has set the tone for COP30: dont-gas-africa.org
This is part of a global call for a fossil fuel phaseout, which has set the tone for COP30: dont-gas-africa.org
November 19, 2025 at 3:34 PM
Today at #COP30: advocates from the US Gulf South, Latin America & Africa protested the unchecked expansion of massive new gas projects, which harm communities & undermine climate goals.
This is part of a global call for a fossil fuel phaseout, which has set the tone for COP30: dont-gas-africa.org
This is part of a global call for a fossil fuel phaseout, which has set the tone for COP30: dont-gas-africa.org
Reposted by Union of Concerned Scientists
UCS' Dr. Rachel Cleetus will soon be joining @news.dw.com live from #COP30 in Belém to discuss the clean energy transition, climate science and global politics on climate action! Tune in here: www.youtube.com/live/CjbDUZk...
The global rivalries of the energy transition | DW News Desk
YouTube video by DW News
www.youtube.com
November 19, 2025 at 1:58 PM
UCS' Dr. Rachel Cleetus will soon be joining @news.dw.com live from #COP30 in Belém to discuss the clean energy transition, climate science and global politics on climate action! Tune in here: www.youtube.com/live/CjbDUZk...