Allison Crimmins
@acrimmins.bsky.social
Lady who climates. Executive Director for Industry Proving Ground at NOAA: Director of the Fifth National Climate Assessment. View my own. She/her.
Pinned
Advancements in U.S. Climate Assessments
The "Advancements in U.S. Climate Assessments" special issue is the culmination of the collective knowledge of climate assessment professionals over decades ...
link.springer.com
This week, the first two papers in a special issue of Climatic Change were published. The issue features advancements and lessons learned from #NCA5 and other state, regional, and national assessments, including process, content, and communication innovations. link.springer.com/collections/...
Reposted by Allison Crimmins
Today we won.
A U.S. District Court ruled that the administration violated federal law when it secretly convened a group of climate contrarians to produce a thoroughly debunked report to overturn the Endangerment Finding.
The science still matters. We won't stop.
www.nytimes.com/2026/01/30/c...
A U.S. District Court ruled that the administration violated federal law when it secretly convened a group of climate contrarians to produce a thoroughly debunked report to overturn the Endangerment Finding.
The science still matters. We won't stop.
www.nytimes.com/2026/01/30/c...
A Secret Panel to Question Climate Science Was Unlawful, Judge Rules
www.nytimes.com
January 31, 2026 at 2:26 AM
Today we won.
A U.S. District Court ruled that the administration violated federal law when it secretly convened a group of climate contrarians to produce a thoroughly debunked report to overturn the Endangerment Finding.
The science still matters. We won't stop.
www.nytimes.com/2026/01/30/c...
A U.S. District Court ruled that the administration violated federal law when it secretly convened a group of climate contrarians to produce a thoroughly debunked report to overturn the Endangerment Finding.
The science still matters. We won't stop.
www.nytimes.com/2026/01/30/c...
It’s a graph. But it’s also people. Real people who dedicated years of their lives to making the world a better place. Our colleagues, our neighbors, our friends.
Not in the top 10 list of worst things this administration has done, but this article resonates with me: www.science.org/content/arti...
U.S. government has lost more than 10,000 STEM Ph.D.s since Trump took office
A Science analysis reveals how many were fired, retired, or quit across 14 agencies
www.science.org
January 28, 2026 at 2:14 PM
It’s a graph. But it’s also people. Real people who dedicated years of their lives to making the world a better place. Our colleagues, our neighbors, our friends.
Happening today:
www.linkedin.com/posts/philli...
www.linkedin.com/posts/philli...
What We're Hearing as The Nature Record Takes Shape | Phillip Levin
Earlier this month, we held a public webinar introducing The Nature Record, and the conversation was thoughtful, generous, and full of important questions.
My latest Substack post reflects what we’re...
www.linkedin.com
January 28, 2026 at 1:29 PM
Happening today:
www.linkedin.com/posts/philli...
www.linkedin.com/posts/philli...
Reposted by Allison Crimmins
I just posted the second in my Endangerment substack series: thesaraphreport.substack.com/p/did-epa-ge...
Did EPA Get the Climate Science Right in 2009?
Spoiler Alert: Yes, we did.
thesaraphreport.substack.com
January 26, 2026 at 7:24 PM
I just posted the second in my Endangerment substack series: thesaraphreport.substack.com/p/did-epa-ge...
A must follow!
After 17 years, I left the EPA yesterday. I'm sad to leave my "unicorn job", but this admin won't let me work on climate change.
I'll be posting at thesaraphreport.substack.com
First up: the Endangerment Finding. I helped write it. I defended it. Now I'm watching them tear it down.
I'll be posting at thesaraphreport.substack.com
First up: the Endangerment Finding. I helped write it. I defended it. Now I'm watching them tear it down.
Marcus C Sarofim | Substack
Climate science and policy analysis from Marcus Sarofim: 17 years EPA, MIT PhD, JHU adjunct, key contributor to 2009 GHG Endangerment Finding. Saraph (my name's root) means "fire"—fitting for climate ...
thesaraphreport.substack.com
January 25, 2026 at 11:15 AM
A must follow!
Reposted by Allison Crimmins
My colleague @bobkopp.net has a nice thread rundown of the many problems and illegal actions of the Dept of Energy Climate Working Group report based on the emails that came out yesterday from @envdefensefund.bsky.social lawsuit: www.edf.org/media/newly-... I would just add a few things re NCA5 1/
Newly Disclosed Records Show Trump Administration’s Unlawful Actions Related to Secretly Formed “Climate Working Group”
The records are part of more than 68,000 pages of records obtained by EDF and the Union of Concerned Scientists as as the result of a lawsuit.
www.edf.org
January 23, 2026 at 2:57 PM
My colleague @bobkopp.net has a nice thread rundown of the many problems and illegal actions of the Dept of Energy Climate Working Group report based on the emails that came out yesterday from @envdefensefund.bsky.social lawsuit: www.edf.org/media/newly-... I would just add a few things re NCA5 1/
Join us this Thursday as NOAA demos three new and improved environmental data products being co-developed with the #insurance and #reinsurance sector that help users assess risk, improve critical decision-making, and build resilience! You can register here: lnkd.in/et2CyxAN
January 5, 2026 at 7:12 PM
Join us this Thursday as NOAA demos three new and improved environmental data products being co-developed with the #insurance and #reinsurance sector that help users assess risk, improve critical decision-making, and build resilience! You can register here: lnkd.in/et2CyxAN
Looking forward to moderating a great discussion on how the retail, insurance/ reinsurance, and architecture and engineering industries are using NOAA's weather and climate data to guide decision-making and build resilience. Hope you can join us! #AGU25 agu.confex.com/agu/agu25/me...
December 9, 2025 at 9:26 PM
Looking forward to moderating a great discussion on how the retail, insurance/ reinsurance, and architecture and engineering industries are using NOAA's weather and climate data to guide decision-making and build resilience. Hope you can join us! #AGU25 agu.confex.com/agu/agu25/me...
Reposted by Allison Crimmins
🚨 JUST PUBLISHED 🚨
⚠️ The 2025 @lancetcountdown.bsky.social report reveals climate change inaction is costing lives and livelihoods, and harming the economy.
❤️🩹 Protecting people’s health demands all hands on deck.
Read more: www.lancetcountdown.org/2025-report/ #LancetClimate25
⚠️ The 2025 @lancetcountdown.bsky.social report reveals climate change inaction is costing lives and livelihoods, and harming the economy.
❤️🩹 Protecting people’s health demands all hands on deck.
Read more: www.lancetcountdown.org/2025-report/ #LancetClimate25
October 29, 2025 at 12:23 AM
🚨 JUST PUBLISHED 🚨
⚠️ The 2025 @lancetcountdown.bsky.social report reveals climate change inaction is costing lives and livelihoods, and harming the economy.
❤️🩹 Protecting people’s health demands all hands on deck.
Read more: www.lancetcountdown.org/2025-report/ #LancetClimate25
⚠️ The 2025 @lancetcountdown.bsky.social report reveals climate change inaction is costing lives and livelihoods, and harming the economy.
❤️🩹 Protecting people’s health demands all hands on deck.
Read more: www.lancetcountdown.org/2025-report/ #LancetClimate25
Reposted by Allison Crimmins
Today, the U.S. faces one billion+ dollar climate/weather disaster on average every 2w. That's a massive increase from one every 4m in the 1980s.
This is 'global weirding' and people are taking notice!
The government told NOAA to stop tracking these events: but @climatecentral.org is on the job.
This is 'global weirding' and people are taking notice!
The government told NOAA to stop tracking these events: but @climatecentral.org is on the job.
U.S. Billion-Dollar Weather and Climate Disasters | Climate Central
Explore U.S. billion-dollar weather and climate disasters since 1980, including total costs, trends, and impacts.
www.climatecentral.org
October 22, 2025 at 4:11 PM
Today, the U.S. faces one billion+ dollar climate/weather disaster on average every 2w. That's a massive increase from one every 4m in the 1980s.
This is 'global weirding' and people are taking notice!
The government told NOAA to stop tracking these events: but @climatecentral.org is on the job.
This is 'global weirding' and people are taking notice!
The government told NOAA to stop tracking these events: but @climatecentral.org is on the job.
New paper from @marcusmarcusrc.bsky.social and team on the impacts of future climate trends on tropical cyclone–induced power outages. Spoiler: disproportionate risks for Hispanic, non-White, and low-income populations and huge increase in annual costs of outages.
www.pnas.org/doi/10.1073/...
www.pnas.org/doi/10.1073/...
Climate change impacts on tropical cyclone–induced power outage risk: Sociodemographic differences in outage burdens | PNAS
This research investigates the projected risks of future climate trends on tropical
cyclone–induced power outages in the Gulf and Atlantic coast of...
www.pnas.org
October 15, 2025 at 8:29 PM
New paper from @marcusmarcusrc.bsky.social and team on the impacts of future climate trends on tropical cyclone–induced power outages. Spoiler: disproportionate risks for Hispanic, non-White, and low-income populations and huge increase in annual costs of outages.
www.pnas.org/doi/10.1073/...
www.pnas.org/doi/10.1073/...
Reposted by Allison Crimmins
📢 Submissions are now open for the U.S. Climate Collection, a joint @theAGU + @ametsoc initiative.
This special collection will publish U.S.-focused climate assessment science that’s free to read, ensuring rigorous, accessible science informs decisions for years to come.
🔗 buff.ly/1tHUSLC
This special collection will publish U.S.-focused climate assessment science that’s free to read, ensuring rigorous, accessible science informs decisions for years to come.
🔗 buff.ly/1tHUSLC
September 25, 2025 at 1:37 PM
📢 Submissions are now open for the U.S. Climate Collection, a joint @theAGU + @ametsoc initiative.
This special collection will publish U.S.-focused climate assessment science that’s free to read, ensuring rigorous, accessible science informs decisions for years to come.
🔗 buff.ly/1tHUSLC
This special collection will publish U.S.-focused climate assessment science that’s free to read, ensuring rigorous, accessible science informs decisions for years to come.
🔗 buff.ly/1tHUSLC
Reposted by Allison Crimmins
Here is the working link: nca5.climate.us
Fifth National Climate Assessment
The Fifth National Climate Assessment is the US Government’s preeminent report on climate change impacts, risks, and responses. It is a congressionally mandated interagency effort that provides the sc...
nca5.climate.us
September 23, 2025 at 6:24 PM
Here is the working link: nca5.climate.us
Reposted by Allison Crimmins
Our comment on the DOE CWG report is done. It tips the scales at 439 pages, approx. 3x longer than the DOE report.
This is related to Brandolini's law: The amount of energy needed to refute bullshit is an order of magnitude bigger than that needed to produce it.
Example: refuting one sentence.
This is related to Brandolini's law: The amount of energy needed to refute bullshit is an order of magnitude bigger than that needed to produce it.
Example: refuting one sentence.
August 28, 2025 at 1:13 AM
Our comment on the DOE CWG report is done. It tips the scales at 439 pages, approx. 3x longer than the DOE report.
This is related to Brandolini's law: The amount of energy needed to refute bullshit is an order of magnitude bigger than that needed to produce it.
Example: refuting one sentence.
This is related to Brandolini's law: The amount of energy needed to refute bullshit is an order of magnitude bigger than that needed to produce it.
Example: refuting one sentence.
Reposted by Allison Crimmins
🚨 If you're interested in working on a coordinated response to the DOE climate report, please enter your info on this google form 🚨
Please RT this so as many people see it as possible.
forms.gle/BL9xUAfRxA...
Please RT this so as many people see it as possible.
forms.gle/BL9xUAfRxA...
DOE climate report response form
We are collecting names to assemble a writing team to respond to the DOE climate working group report. If you'd like to contribute, enter your info below. At this point, there is no guarantee what we'll do (if anything), but we want to keep our options open by collecting names. If you have any further questions, feel free to email me.
We are primarily looking for Ph.D. scientists at universities or government labs in appropriate fields. I realize that this will exclude some qualified people and I apologize, but we felt this was necessary for a variety of reasons.
forms.gle
July 31, 2025 at 6:35 PM
🚨 If you're interested in working on a coordinated response to the DOE climate report, please enter your info on this google form 🚨
Please RT this so as many people see it as possible.
forms.gle/BL9xUAfRxA...
Please RT this so as many people see it as possible.
forms.gle/BL9xUAfRxA...
Oh you’re taking public comments?
July 29, 2025 at 11:18 PM
Oh you’re taking public comments?
Reposted by Allison Crimmins
Today is #ShowYourStripes Day 🔵🔴
A single image. A century of data.
Every city, state, county -- the planet -- has an impact of climate change story — and the stripes show it.
Post yours. Highlight the warming where you live.
Start the conversation.
A single image. A century of data.
Every city, state, county -- the planet -- has an impact of climate change story — and the stripes show it.
Post yours. Highlight the warming where you live.
Start the conversation.
June 21, 2025 at 11:27 AM
Today is #ShowYourStripes Day 🔵🔴
A single image. A century of data.
Every city, state, county -- the planet -- has an impact of climate change story — and the stripes show it.
Post yours. Highlight the warming where you live.
Start the conversation.
A single image. A century of data.
Every city, state, county -- the planet -- has an impact of climate change story — and the stripes show it.
Post yours. Highlight the warming where you live.
Start the conversation.
Looking forward to hearing more tonight! peoplesbooktakoma.com/event/human-...
June 17, 2025 at 4:26 PM
Looking forward to hearing more tonight! peoplesbooktakoma.com/event/human-...
Reposted by Allison Crimmins
In NYC June 16? You’re invited to my book launch!!! It’s at the beautiful New York Public Library and it’s free and I can’t wait to see you there
www.nypl.org/events/progr...
www.nypl.org/events/progr...
Kate Marvel & Friends: Feeling Climate Change
Tickets for Kate Marvel & Friends: Feeling Climate Change in New York from NYPL. The climate scientist is joined by a group of special guests to share insights, data, and stories that reflect how it f...
www.showclix.com
May 13, 2025 at 6:36 PM
In NYC June 16? You’re invited to my book launch!!! It’s at the beautiful New York Public Library and it’s free and I can’t wait to see you there
www.nypl.org/events/progr...
www.nypl.org/events/progr...
Reposted by Allison Crimmins
Most Americans frequently use federal science information. But few are concerned that cuts to federal science spending could affect their access to such information, a new poll finds.
Most Americans use federal science information on a weekly basis, a new poll finds
Most Americans frequently use federal science information. But few are concerned that cuts to federal science spending could affect their access to such information, a new poll finds.
www.npr.org
May 6, 2025 at 10:46 AM
Most Americans frequently use federal science information. But few are concerned that cuts to federal science spending could affect their access to such information, a new poll finds.
Reposted by Allison Crimmins
Last week, the govt dismissed 400 researchers working on the US National Climate Assessment. I was one of them. Today, @agu.org & @ametsoc.org announced they are joining forces to sustain the momentum. It's not a replacement, it's a reminder that science is unstoppable. news.agu.org/press-releas...
AGU and AMS join forces on special collection to maintain momentum of research supporting the U.S. National Climate assessment
Congressionally mandated, the NCA draws on the latest scientific research to evaluate how climate change is affecting the United States. The new special collection does not replace the NCA but instead...
news.agu.org
May 2, 2025 at 12:24 PM
Last week, the govt dismissed 400 researchers working on the US National Climate Assessment. I was one of them. Today, @agu.org & @ametsoc.org announced they are joining forces to sustain the momentum. It's not a replacement, it's a reminder that science is unstoppable. news.agu.org/press-releas...
Reposted by Allison Crimmins
Working on the NCA5 was amazing. It was genuinely moving to be surrounded by so much dedication and sheer scientific and administrative *excellence*. I think we’ve forgotten how to believe in good things, but this was one of them.
I was honored to work on the 5th National Climate Assessment in 2022-23. One of my most inspiring moments in climate was sitting in a hotel ballroom with hundreds of experts, scientists, and civil servants, all working to inform Americans about our possible futures. www.nytimes.com/2025/04/28/c...
National Climate Assessment Authors Are Dismissed by Trump Administration (Gift Article)
The Trump administration told researchers it was “releasing” them from their roles. It puts the future of the assessment, which is required by Congress, in doubt.
www.nytimes.com
April 29, 2025 at 12:45 PM
Working on the NCA5 was amazing. It was genuinely moving to be surrounded by so much dedication and sheer scientific and administrative *excellence*. I think we’ve forgotten how to believe in good things, but this was one of them.