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.
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The authoritarian, violent, and anti-science actions of the Trump admin over the past week show clear contempt for democracy and the public good, endangering people in the US and around the world.
Congress must uphold its constitutional responsibility and hold the administration accountable.
Congress must uphold its constitutional responsibility and hold the administration accountable.
Yesterday, the Clean and Reliable Grid Affordability (CRGA) Act was signed into law 🎉. UCS’s James Gignac and other members of the Illinois Clean Jobs Coalition joined @govpritzker.illinois.gov to celebrate Illinois’ clean energy leadership.
January 9, 2026 at 10:03 PM
Yesterday, the Clean and Reliable Grid Affordability (CRGA) Act was signed into law 🎉. UCS’s James Gignac and other members of the Illinois Clean Jobs Coalition joined @govpritzker.illinois.gov to celebrate Illinois’ clean energy leadership.
The authoritarian, violent, and anti-science actions of the Trump admin over the past week show clear contempt for democracy and the public good, endangering people in the US and around the world.
Congress must uphold its constitutional responsibility and hold the administration accountable.
Congress must uphold its constitutional responsibility and hold the administration accountable.
January 9, 2026 at 4:25 PM
The authoritarian, violent, and anti-science actions of the Trump admin over the past week show clear contempt for democracy and the public good, endangering people in the US and around the world.
Congress must uphold its constitutional responsibility and hold the administration accountable.
Congress must uphold its constitutional responsibility and hold the administration accountable.
CRGA is law!🎉 Today, @govpritzker.illinois.gov signed the Clean and Reliable Grid Affordability (CRGA) Act into law, officially cementing Illinois as the state with the STRONGEST response yet to the rollback of federal climate protections.
January 9, 2026 at 12:00 AM
CRGA is law!🎉 Today, @govpritzker.illinois.gov signed the Clean and Reliable Grid Affordability (CRGA) Act into law, officially cementing Illinois as the state with the STRONGEST response yet to the rollback of federal climate protections.
“The events of the past week have shown with disturbing clarity the Trump administration’s contempt for the democratic process and the public good with the intention to use fear and force both at home and abroad to achieve their aims."
Statement by UCS President @gretchentg.bsky.social:
Statement by UCS President @gretchentg.bsky.social:
Trump Administration’s Authoritarian, Violent Actions Endanger People in the U.S. and Around the World
Yesterday, a U.S. ICE agent shot and killed Renee Good, a Minnesota woman—the latest tragic consequence of the Trump administration’s reckless and authoritarian policies. Statement by UCS President Gr...
www.ucs.org
January 8, 2026 at 9:26 PM
“The events of the past week have shown with disturbing clarity the Trump administration’s contempt for the democratic process and the public good with the intention to use fear and force both at home and abroad to achieve their aims."
Statement by UCS President @gretchentg.bsky.social:
Statement by UCS President @gretchentg.bsky.social:
“President Trump’s withdrawal of the United States from the bedrock global treaty to tackle climate change is a new low and yet another a sign that this authoritarian, anti-science administration is determined to sacrifice people’s well-being and destabilize global cooperation."
Read UCS Statement:
Read UCS Statement:
Trump Sinks to New Low by Announcing US Withdrawal from 66 International Organizations, Including UNFCCC and IPCC
President Trump announced today that he is removing the United States from the UNFCCC and IPCC, as well as 64 other entities or U.N. organizations. Statements by the Union of Concerned Scientists.
www.ucs.org
January 8, 2026 at 1:33 AM
“President Trump’s withdrawal of the United States from the bedrock global treaty to tackle climate change is a new low and yet another a sign that this authoritarian, anti-science administration is determined to sacrifice people’s well-being and destabilize global cooperation."
Read UCS Statement:
Read UCS Statement:
As the Trump admin intensifies efforts to dismantle NCAR, one of the United States’ leading weather and climate research institutions, UCS’s @carlonimbus.bsky.social explains why it matters and how its work benefits the American public as a key achievement of the National Science Foundation.
What Do Duolingo, The Magic School Bus, and James Bond Have in Common? The US National Science Foundation
Public investment in science yields public good.
blog.ucs.org
January 7, 2026 at 4:37 PM
As the Trump admin intensifies efforts to dismantle NCAR, one of the United States’ leading weather and climate research institutions, UCS’s @carlonimbus.bsky.social explains why it matters and how its work benefits the American public as a key achievement of the National Science Foundation.
"It’s critical for public health and safety that [vaccines]continue to be accessible and safe to the public. But political interference in federal research studies, programs, and messaging, based on fabrications and conspiracy theories, will only continue to undermine public health."
The Trump Administration’s Assault on Vaccines Endangers Us All
Vaccines are very safe and help protect us. Why does this administration keep interfering with them?
blog.ucs.org
January 6, 2026 at 8:15 PM
"It’s critical for public health and safety that [vaccines]continue to be accessible and safe to the public. But political interference in federal research studies, programs, and messaging, based on fabrications and conspiracy theories, will only continue to undermine public health."
Reposted by Union of Concerned Scientists
The Trump admin & DHS Sec #Noem are continuing their ongoing assault on #FEMA with reports of major cuts to FEMA staff, which will put people’s lives and well-being at risk when disasters strike. Congress — we have a problem & oversight is needed ASAP. www.washingtonpost.com/weather/2026...
Emails outline potential cuts affecting thousands of FEMA disaster responders
Any FEMA terminations are likely to come in waves, according to three people familiar with the plans.
www.washingtonpost.com
January 6, 2026 at 5:13 PM
The Trump admin & DHS Sec #Noem are continuing their ongoing assault on #FEMA with reports of major cuts to FEMA staff, which will put people’s lives and well-being at risk when disasters strike. Congress — we have a problem & oversight is needed ASAP. www.washingtonpost.com/weather/2026...
Reposted by Union of Concerned Scientists
ICYMI: Last month, a Swiss court ruled that a climate lawsuit brought against cement company Holcim by four Indonesian fishers can proceed. The plaintiffs demand compensation for climate damage they've suffered, financial participation in flood protection measures, and reduction in CO2 emissions.
Significant interim success for Indonesian fishers: Zug court accepts climate lawsuit ageinst Holcim
For the first time ever in Switzerland, a court has ruled a climate lawsuit brought against a large corporation admissible: The Cantonal Court of Zug allowed all demands set out in the climate litigat...
en.heks.ch
January 5, 2026 at 4:15 PM
ICYMI: Last month, a Swiss court ruled that a climate lawsuit brought against cement company Holcim by four Indonesian fishers can proceed. The plaintiffs demand compensation for climate damage they've suffered, financial participation in flood protection measures, and reduction in CO2 emissions.
Reposted by Union of Concerned Scientists
Parents everywhere want to do everything possible to protect their kids and help them thrive. Secretary Kennedy just robbed us of one of the easiest ways to keep our kids safe, through routine science-based vaccine schedules. I'm angry about the kids that will suffer because of this cruel decision.
When science is sidelined, children get hurt. In his latest anti-science move, RFK Jr. ignored overwhelming scientific evidence, bypassed the established review process for vaccine recommendations, and all but guaranteed that more children will get sick.
US cuts the number of vaccines recommended for every child, a move slammed by physicians
The U.S. took the unprecedented step Monday of dropping the number of vaccines it recommends for every child — leaving other immunizations, such as flu shots, open to families to choose but without c...
apnews.com
January 6, 2026 at 5:13 PM
Parents everywhere want to do everything possible to protect their kids and help them thrive. Secretary Kennedy just robbed us of one of the easiest ways to keep our kids safe, through routine science-based vaccine schedules. I'm angry about the kids that will suffer because of this cruel decision.
The US House Committee on Science, Space and Technology will hear from only chemical industry representatives this Thursday about the Toxic Substance Control Act (TSCA), the primary federal law safeguarding the public from exposures to toxic chemicals.
E&E News: House panel looks to bolster chemical research
The Science, Space and Technology Committee will hear from industry witnesses on how federal regulations affect innovation.
subscriber.politicopro.com
January 6, 2026 at 5:02 PM
The US House Committee on Science, Space and Technology will hear from only chemical industry representatives this Thursday about the Toxic Substance Control Act (TSCA), the primary federal law safeguarding the public from exposures to toxic chemicals.
When science is sidelined, children get hurt. In his latest anti-science move, RFK Jr. ignored overwhelming scientific evidence, bypassed the established review process for vaccine recommendations, and all but guaranteed that more children will get sick.
US cuts the number of vaccines recommended for every child, a move slammed by physicians
The U.S. took the unprecedented step Monday of dropping the number of vaccines it recommends for every child — leaving other immunizations, such as flu shots, open to families to choose but without c...
apnews.com
January 6, 2026 at 3:52 PM
When science is sidelined, children get hurt. In his latest anti-science move, RFK Jr. ignored overwhelming scientific evidence, bypassed the established review process for vaccine recommendations, and all but guaranteed that more children will get sick.
Five years ago today, a violent mob invaded the US Capitol, at President Trump’s urging, to disrupt certification of an election he lost. This attack on the US government was a clear and disturbing sign of the authoritarian path he took then—and continues to advance today. (🧵)
Jan. 6, 2021: A visual archive of the Capitol attack
NPR’s Jan. 6 archive brings together reporting, video, documents and testimony to show what really happened during the Capitol riot. Explore the timeline, cases and evidence behind the attack.
apps.npr.org
January 6, 2026 at 2:54 PM
Five years ago today, a violent mob invaded the US Capitol, at President Trump’s urging, to disrupt certification of an election he lost. This attack on the US government was a clear and disturbing sign of the authoritarian path he took then—and continues to advance today. (🧵)
Reposted by Union of Concerned Scientists
This roundup from @theguardian.com covers developments in US lawsuits seeking to hold #BigOil accountable for climate deception & damages. This includes new & novel litigation, such as the first-ever wrongful-death lawsuit against Big Oil for a relative's death during an extreme heatwave in WA.
2025 was a big year for climate in the US courts - these were the wins and losses
Americans are increasingly turning to courts to hold big oil accountable. Here are major trends that emerged last year
www.theguardian.com
January 5, 2026 at 4:09 PM
This roundup from @theguardian.com covers developments in US lawsuits seeking to hold #BigOil accountable for climate deception & damages. This includes new & novel litigation, such as the first-ever wrongful-death lawsuit against Big Oil for a relative's death during an extreme heatwave in WA.
Funding cuts to critical research, staff reductions at agencies, political interference & disinformation are eroding public trust in decades of peer-reviewed science. How can we respond to this challenging moment? Here's some inspiration by Allie Cashel from @protectdemocracy.org.
How the Scientific Community Can Defend Itself — and Our Democracy
Science is not an apolitical enterprise sealed off from society; it is an independent one, and fiercely so.
blog.ucs.org
January 5, 2026 at 5:06 PM
Funding cuts to critical research, staff reductions at agencies, political interference & disinformation are eroding public trust in decades of peer-reviewed science. How can we respond to this challenging moment? Here's some inspiration by Allie Cashel from @protectdemocracy.org.
¿Recuerdas la primera vez vez que escuchaste que el planeta se está calentando por la acción humana? ¿O recién te estás enterando? Las compañías de combustibles fósiles lo supieron hace 70 años… e hicieron lo posible para evitar que tú lo supieras.
Conoce más en la 2da parte de nuestro podcast:
Conoce más en la 2da parte de nuestro podcast:
El crimen del siglo-2ª parte
Un explosivo informe de UCS llamado "Décadas de engaños" revela pruebas documentadas de lo que podría llamarse…el crimen del siglo.
es.ucs.org
January 2, 2026 at 6:49 PM
¿Recuerdas la primera vez vez que escuchaste que el planeta se está calentando por la acción humana? ¿O recién te estás enterando? Las compañías de combustibles fósiles lo supieron hace 70 años… e hicieron lo posible para evitar que tú lo supieras.
Conoce más en la 2da parte de nuestro podcast:
Conoce más en la 2da parte de nuestro podcast:
UCS is a US-based nonprofit organization founded more than 50 years ago. Our team of scientists and everyday people work together to make change on the biggest issues of our time, including climate change, nuclear weapons, transportation, food, and democracy.
Join us: www.ucs.org
Join us: www.ucs.org
The Union of Concerned Scientists: What We Do
The Union of Concerned Scientists (UCS) is a US-based nonprofit organization founded more than 50 years ago. Our team of scientists and everyday people work together to make change on the biggest issues of our time, including climate change, nuclear weapons, transportation, food, and democracy. Join us: https://www.ucs.org See more of award-winning photographer Daniel Beltrá’s work: www.danielbeltra.com and on Instagram: @danielbeltraphoto
youtu.be
January 1, 2026 at 5:05 AM
UCS is a US-based nonprofit organization founded more than 50 years ago. Our team of scientists and everyday people work together to make change on the biggest issues of our time, including climate change, nuclear weapons, transportation, food, and democracy.
Join us: www.ucs.org
Join us: www.ucs.org
We’re closing out a year filled with unprecedented attacks on science, but the pushback is growing. Hear from UCS President @gretchentg.bsky.social on how UCS and the scientific community are standing up for science:
Ask a Scientist: How Is the Scientific Community Meeting This Moment?
UCS—and scientists generally—are uniquely positioned to resist democratic backsliding. Here's how.
blog.ucs.org
December 31, 2025 at 7:12 PM
We’re closing out a year filled with unprecedented attacks on science, but the pushback is growing. Hear from UCS President @gretchentg.bsky.social on how UCS and the scientific community are standing up for science:
We are proud to celebrate our 2025 Science Defenders! Meet Neighbors for Environmental Justice (N4EJ), a group that has been working since 2018 to educate, advocate, and organize with the community to advance environmental justice on the southwest side of Chicago.
December 30, 2025 at 2:47 PM
We are proud to celebrate our 2025 Science Defenders! Meet Neighbors for Environmental Justice (N4EJ), a group that has been working since 2018 to educate, advocate, and organize with the community to advance environmental justice on the southwest side of Chicago.
¿Te has preguntado cuánta energía se necesita para generar una simple respuesta ChatGPT? ¿O cuánta agua utilizan los centros de datos para enfriar todo ese poder de cálculo? Lee el blog de José Pablo Ortiz, de UCS, para comprender el impacto medioambiental de la Inteligencia Artificial:
Impactos ambientales de la inteligencia artificial
Algunas comunidades soportan más costos a la salud y al medio ambiente que otros.
blog.ucs.org
December 29, 2025 at 5:33 PM
¿Te has preguntado cuánta energía se necesita para generar una simple respuesta ChatGPT? ¿O cuánta agua utilizan los centros de datos para enfriar todo ese poder de cálculo? Lee el blog de José Pablo Ortiz, de UCS, para comprender el impacto medioambiental de la Inteligencia Artificial:
2025 saw some big moments in climate litigation. As politics hit roadblocks, courts stepped up—protecting rights, restoring funding, and keeping climate accountability moving forward. UCS’s Delta Merner looks back at the year’s major wins.
The Courts Delivered Important Climate Wins in 2025
In case after case, communities and states have secured real victories.
blog.ucs.org
December 28, 2025 at 5:12 PM
2025 saw some big moments in climate litigation. As politics hit roadblocks, courts stepped up—protecting rights, restoring funding, and keeping climate accountability moving forward. UCS’s Delta Merner looks back at the year’s major wins.
It’s December, and we’re honoring UCS’s 2025 Science Defenders! Meet Dr. Yanelli Nunez, a senior scientist at PSE Healthy Energy, who provides data and analysis to help empower communities, amplify their voices, and work toward a healthier energy future.
December 26, 2025 at 2:39 PM
It’s December, and we’re honoring UCS’s 2025 Science Defenders! Meet Dr. Yanelli Nunez, a senior scientist at PSE Healthy Energy, who provides data and analysis to help empower communities, amplify their voices, and work toward a healthier energy future.
When we created this report on renewable energy in 2008, solar panels and wind turbines weren’t as common as they are today. ☀️🌬️ What is renewable energy, and what are the benefits? Check out our updated resource to learn how renewables help our health, air, and economy.
7 Benefits of Renewable Energy Use
Renewable energy—wind, solar, geothermal, hydroelectric, and biomass—provides substantial benefits for our health, our climate, and our economy.
www.ucs.org
December 26, 2025 at 5:12 AM
When we created this report on renewable energy in 2008, solar panels and wind turbines weren’t as common as they are today. ☀️🌬️ What is renewable energy, and what are the benefits? Check out our updated resource to learn how renewables help our health, air, and economy.
Get your friends and family to act on climate during the holidays! Our Climate Action Button offers dozens of easy climate change actions that you can take RIGHT NOW.
🌎Clicking the button won't solve the climate crisis. But it'll help! 👇
🌎Clicking the button won't solve the climate crisis. But it'll help! 👇
The Climate Action Button
Clicking the button won't solve the climate crisis. But it'll help.
climatebutton.ucs.org
December 25, 2025 at 5:12 PM
Get your friends and family to act on climate during the holidays! Our Climate Action Button offers dozens of easy climate change actions that you can take RIGHT NOW.
🌎Clicking the button won't solve the climate crisis. But it'll help! 👇
🌎Clicking the button won't solve the climate crisis. But it'll help! 👇
For all of us who care about science, evidence-based policymaking, our changing climate, and democracy, this has been a sobering year. But thanks to your support, UCS has been monitoring and responding to these attacks with the arsenal of tools at our disposal.
Announcing the Union of Concerned Scientists' 2025 Annual Report
YouTube video by Union of Concerned Scientists
youtu.be
December 24, 2025 at 7:38 PM
For all of us who care about science, evidence-based policymaking, our changing climate, and democracy, this has been a sobering year. But thanks to your support, UCS has been monitoring and responding to these attacks with the arsenal of tools at our disposal.