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/...
Greenhouse gases endanger human health and welfare
February 12, 2026 at 12:27 PM
Greenhouse gases endanger human health and welfare
I see that scrunchy :)
February 4, 2026 at 8:00 PM
I see that scrunchy :)
“Unambiguously correct”
February 3, 2026 at 12:20 PM
“Unambiguously correct”
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...
Thank you UCS and EDF!!!
January 31, 2026 at 12:39 AM
Thank you UCS and EDF!!!
Between the Old Bay and McRib posts, I'm starting to worry about you.
January 29, 2026 at 3:06 PM
Between the Old Bay and McRib posts, I'm starting to worry about you.
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/...
Also, personal life achievement unlocked- I cited @theonion.com in a scientific paper. :)
October 2, 2025 at 1:43 PM
Also, personal life achievement unlocked- I cited @theonion.com in a scientific paper. :)
One more paper in this series- the introductory paper was published yesterday amid the shutdown. Innovations in the climate assessment development process discusses the value of scientific assessments and how to keep them evolving to meet evolving user needs.
link.springer.com/article/10.1...
link.springer.com/article/10.1...
Innovations in the climate assessment development process - Climatic Change
Climate assessments have long been key scientific inputs that inform the development of productive and impactful climate policy in the United States and around the world. This introduction sets the stage for the suite of papers in the Topical Collection “Advancements in U.S. Climate Assessments.” Inspired and informed by the release of the Fifth National Climate Assessment, the papers within this issue document lessons learned over the past 30+ years and leverage the perspectives of previous assessment authors and staff to aid those interested in developing their own climate assessments. This paper reviews the evolution of climate assessments and the factors that make for useful, usable, and used scientific products to support societal choices. Evolving user needs over the last 30+ years also reflect a shift in demand towards more localized or more context-specific climate data that integrates social science information, tools, and frameworks. To meet these needs, we highlight three areas of potential opportunity and challenge for future assessments: continued and strengthened conversations between assessment developers across geographic scale to share innovations and lessons learned in the development process; working with knowledge holders in under-represented areas of expertise to alter assessment governance and guidelines to better incorporate diverse perspectives; and seizing opportunities for using innovative communication and engagement mediums.
link.springer.com
October 2, 2025 at 1:19 PM
One more paper in this series- the introductory paper was published yesterday amid the shutdown. Innovations in the climate assessment development process discusses the value of scientific assessments and how to keep them evolving to meet evolving user needs.
link.springer.com/article/10.1...
link.springer.com/article/10.1...
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