Tom Di Liberto
@tdiliberto.bsky.social
Climate scientist and science communicator who dabbles in comedy.
Creator of NOAA's Teek and Tom cartoon series focused on weather, climate and ocean science.
If in Washington DC, come check out my science improv troupe at Washington Improv theater
Creator of NOAA's Teek and Tom cartoon series focused on weather, climate and ocean science.
If in Washington DC, come check out my science improv troupe at Washington Improv theater
Adding to this, 2025 started pretty La Nina-ish. And will end that way too. Which should have a cooling impact on global temps.
(Heck according to the relative Oceanic Nino Index (RONI), it's been La Nina pretty much since summer 2024.)
The level of sustained global warmth is something else!
(Heck according to the relative Oceanic Nino Index (RONI), it's been La Nina pretty much since summer 2024.)
The level of sustained global warmth is something else!
Despite the lack of a planet-warming El Niño event this year, 2025 has been the 2nd-warmest year on record for the year-to-date period, and is on track to end up as the 2nd- or 3rd-warmest year on record, behind only the El Niño-warmed years of 2024 and 2023:
October 2025 was the planet's third-warmest October on record » Yale Climate Connections
Only October 2023 and October 2024 were warmer.
yaleclimateconnections.org
November 10, 2025 at 4:21 PM
Adding to this, 2025 started pretty La Nina-ish. And will end that way too. Which should have a cooling impact on global temps.
(Heck according to the relative Oceanic Nino Index (RONI), it's been La Nina pretty much since summer 2024.)
The level of sustained global warmth is something else!
(Heck according to the relative Oceanic Nino Index (RONI), it's been La Nina pretty much since summer 2024.)
The level of sustained global warmth is something else!
It's been ~250 days since I was fired. Just gives me the warm fuzzies that the courts had to force DOC and NOAA to say that I obviously wasn't fired based on my personal performance.
November 10, 2025 at 3:45 PM
It's been ~250 days since I was fired. Just gives me the warm fuzzies that the courts had to force DOC and NOAA to say that I obviously wasn't fired based on my personal performance.
Reposted by Tom Di Liberto
🌎 Share the facts on climate change with a new slide deck from Climate Central, available in English and Spanish. 🌎 www.climatecentral.org/climate-matt...
November 5, 2025 at 5:43 PM
🌎 Share the facts on climate change with a new slide deck from Climate Central, available in English and Spanish. 🌎 www.climatecentral.org/climate-matt...
Reposted by Tom Di Liberto
🌡Every month, Climate Central breaks down the latest on climate change, so you don’t have to.
Our free monthly newsletter delivers:
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▶️Science-backed updates
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Our free monthly newsletter delivers:
▶️Localized climate impact insights
▶️Science-backed updates
▶️User-friendly tools/visualizations
Subscribe today!
bit.ly/3JB64Pe
November 4, 2025 at 4:03 PM
🌡Every month, Climate Central breaks down the latest on climate change, so you don’t have to.
Our free monthly newsletter delivers:
▶️Localized climate impact insights
▶️Science-backed updates
▶️User-friendly tools/visualizations
Subscribe today!
bit.ly/3JB64Pe
Our free monthly newsletter delivers:
▶️Localized climate impact insights
▶️Science-backed updates
▶️User-friendly tools/visualizations
Subscribe today!
bit.ly/3JB64Pe
Reposted by Tom Di Liberto
Many important weather and climate data streams have gone silent as the U.S. government shutdown continues on.
As just one example, NOAA’s Global Monitoring Laboratory did not release its regular monthly update for greenhouse gases, such as for carbon dioxide, methane, and nitrous oxide.
As just one example, NOAA’s Global Monitoring Laboratory did not release its regular monthly update for greenhouse gases, such as for carbon dioxide, methane, and nitrous oxide.
October 30, 2025 at 11:46 PM
Many important weather and climate data streams have gone silent as the U.S. government shutdown continues on.
As just one example, NOAA’s Global Monitoring Laboratory did not release its regular monthly update for greenhouse gases, such as for carbon dioxide, methane, and nitrous oxide.
As just one example, NOAA’s Global Monitoring Laboratory did not release its regular monthly update for greenhouse gases, such as for carbon dioxide, methane, and nitrous oxide.
Reposted by Tom Di Liberto
We know there's an ideal temp for running marathons, however... as the planet warms due to #climatechange, those optimal race-day conditions will become less likely.
Explore how specific races are impacted with @climatecentral.org's new interactive tool.
👉 app.climatecentral.org/dataviz/mara...
Explore how specific races are impacted with @climatecentral.org's new interactive tool.
👉 app.climatecentral.org/dataviz/mara...
October 28, 2025 at 7:10 PM
We know there's an ideal temp for running marathons, however... as the planet warms due to #climatechange, those optimal race-day conditions will become less likely.
Explore how specific races are impacted with @climatecentral.org's new interactive tool.
👉 app.climatecentral.org/dataviz/mara...
Explore how specific races are impacted with @climatecentral.org's new interactive tool.
👉 app.climatecentral.org/dataviz/mara...
"An Air Force Reserve Hurricane Hunter aircraft has found that
Melissa is strengthening..." This is an absolutely terrifying update so close to landfall. Melissa now at 180mph winds and 896mb central pressure.
www.nhc.noaa.gov/text/refresh...
Melissa is strengthening..." This is an absolutely terrifying update so close to landfall. Melissa now at 180mph winds and 896mb central pressure.
www.nhc.noaa.gov/text/refresh...
October 28, 2025 at 1:21 PM
"An Air Force Reserve Hurricane Hunter aircraft has found that
Melissa is strengthening..." This is an absolutely terrifying update so close to landfall. Melissa now at 180mph winds and 896mb central pressure.
www.nhc.noaa.gov/text/refresh...
Melissa is strengthening..." This is an absolutely terrifying update so close to landfall. Melissa now at 180mph winds and 896mb central pressure.
www.nhc.noaa.gov/text/refresh...
Reposted by Tom Di Liberto
“If you do not measure it you can’t manage it.”
We may never know the final cost of the L.A. fires because Trump stopped keeping track.
Scientist formerly in charge of the project joined me on @lastword.msnbc.com ahead of the release of my new book “Firestorm.”
preorder: a.co/d/83fAJtc
We may never know the final cost of the L.A. fires because Trump stopped keeping track.
Scientist formerly in charge of the project joined me on @lastword.msnbc.com ahead of the release of my new book “Firestorm.”
preorder: a.co/d/83fAJtc
October 28, 2025 at 3:32 AM
“If you do not measure it you can’t manage it.”
We may never know the final cost of the L.A. fires because Trump stopped keeping track.
Scientist formerly in charge of the project joined me on @lastword.msnbc.com ahead of the release of my new book “Firestorm.”
preorder: a.co/d/83fAJtc
We may never know the final cost of the L.A. fires because Trump stopped keeping track.
Scientist formerly in charge of the project joined me on @lastword.msnbc.com ahead of the release of my new book “Firestorm.”
preorder: a.co/d/83fAJtc
Reposted by Tom Di Liberto
Hurricane #Melissa explosively intensified into a Category 5 storm over exceptionally warm Caribbean waters.
Here's how climate change amplified this dangerous hurricane—from its rapid strengthening to the catastrophic rainfall ahead ⤵️
youtube.com/shorts/VtbZZ...
Here's how climate change amplified this dangerous hurricane—from its rapid strengthening to the catastrophic rainfall ahead ⤵️
youtube.com/shorts/VtbZZ...
Hurricane #Melissa and Climate Change
YouTube video by climatecentral
youtube.com
October 28, 2025 at 3:01 AM
Hurricane #Melissa explosively intensified into a Category 5 storm over exceptionally warm Caribbean waters.
Here's how climate change amplified this dangerous hurricane—from its rapid strengthening to the catastrophic rainfall ahead ⤵️
youtube.com/shorts/VtbZZ...
Here's how climate change amplified this dangerous hurricane—from its rapid strengthening to the catastrophic rainfall ahead ⤵️
youtube.com/shorts/VtbZZ...
🧵 on Hurricane Melissa
As of the 2pm ET update, #Melissa is a Cat. 5 hurricane with 175mph winds.
The National Hurricane Center warns "life-threatening flash flooding...catastrophic winds..damaging storm surge" as Jamaica prepares.
🧵Here's how excessive Caribbean warmth has boosted the impacts of this storm:
The National Hurricane Center warns "life-threatening flash flooding...catastrophic winds..damaging storm surge" as Jamaica prepares.
🧵Here's how excessive Caribbean warmth has boosted the impacts of this storm:
October 27, 2025 at 6:35 PM
🧵 on Hurricane Melissa
👀
I've seen a lot of dropsondes over my years, and a peak wind of 210kt - even at the top of/just beyond the boundary layer - is wild to see. Might be up there in the ranks of all-time strongest dropsonde-measured gusts as well.
October 27, 2025 at 2:22 PM
👀
Seems not great.
Some perspective on this year's sea surface temperatures and recent warming across the North Pacific... 🌊
This graph shows the average for a band across the midlatitudes for every average January-September period from 1854-2025 using ERSSTv5 data.
This graph shows the average for a band across the midlatitudes for every average January-September period from 1854-2025 using ERSSTv5 data.
October 26, 2025 at 2:53 PM
Seems not great.
Reposted by Tom Di Liberto
Yes, hurricanes have rapidly intensified in October before.
Yes, the Caribbean has been untouched this hurricane season.
But we understand the human influence on the excessive warmth in the basin, boosting #Melissa's intensity.
Real-time data & the human-caused impacts 🧵👇
Yes, the Caribbean has been untouched this hurricane season.
But we understand the human influence on the excessive warmth in the basin, boosting #Melissa's intensity.
Real-time data & the human-caused impacts 🧵👇
#Melissa is starting to rapidly intensify (RI) in the Caribbean as it amps into an expected Cat 5 hurricane by (latest) Monday.
While there have been others to do it, a hurricane undergoing RI in October is relatively uncommon.
While there have been others to do it, a hurricane undergoing RI in October is relatively uncommon.
October 25, 2025 at 11:39 PM
Yes, hurricanes have rapidly intensified in October before.
Yes, the Caribbean has been untouched this hurricane season.
But we understand the human influence on the excessive warmth in the basin, boosting #Melissa's intensity.
Real-time data & the human-caused impacts 🧵👇
Yes, the Caribbean has been untouched this hurricane season.
But we understand the human influence on the excessive warmth in the basin, boosting #Melissa's intensity.
Real-time data & the human-caused impacts 🧵👇
Big news out of @climatecentral.org today! We've brought back NOAA's billion dollar disaster dataset!
Check out our interactive website and bookmark it because there's more to come!
www.climatecentral.org/climate-serv...
Check out our interactive website and bookmark it because there's more to come!
www.climatecentral.org/climate-serv...
October 22, 2025 at 2:43 PM
Big news out of @climatecentral.org today! We've brought back NOAA's billion dollar disaster dataset!
Check out our interactive website and bookmark it because there's more to come!
www.climatecentral.org/climate-serv...
Check out our interactive website and bookmark it because there's more to come!
www.climatecentral.org/climate-serv...
Thanks @somas-sbu.bsky.social !
Tom DiLiberto is a meteorologist & climate scientist who earned his MS from @stonybrooku.bsky.social in 2009 in Atmospheric & Oceanic Sciences. Tom worked under the guidance of Dr. Brian Colle at @somas-sbu.bsky.social. His thesis involved the verification of storm surge modeling systems for NYC/LI.
October 22, 2025 at 2:41 PM
Thanks @somas-sbu.bsky.social !
Reposted by Tom Di Liberto
Do you want to add more climate info into your content but aren't sure how to make it feel natural?
We got you.
Join us as we walk through "dripping" - aka making it part of the conversation in stories you are already telling
🗓️ Wed, Oct. 21 | 2pm ET
🔗 climatecentral-org.zoom.us/webinar/regi...
We got you.
Join us as we walk through "dripping" - aka making it part of the conversation in stories you are already telling
🗓️ Wed, Oct. 21 | 2pm ET
🔗 climatecentral-org.zoom.us/webinar/regi...
October 21, 2025 at 4:36 PM
Do you want to add more climate info into your content but aren't sure how to make it feel natural?
We got you.
Join us as we walk through "dripping" - aka making it part of the conversation in stories you are already telling
🗓️ Wed, Oct. 21 | 2pm ET
🔗 climatecentral-org.zoom.us/webinar/regi...
We got you.
Join us as we walk through "dripping" - aka making it part of the conversation in stories you are already telling
🗓️ Wed, Oct. 21 | 2pm ET
🔗 climatecentral-org.zoom.us/webinar/regi...
New analysis! Paris Agreement commitments would help the planet avoid some really really really really bad heat impacts by 2100. But still would cause really really bad heat impacts compared to now, AND would fall short of Paris Agreement goals.
www.climatecentral.org/report/10th-...
www.climatecentral.org/report/10th-...
October 16, 2025 at 5:28 PM
New analysis! Paris Agreement commitments would help the planet avoid some really really really really bad heat impacts by 2100. But still would cause really really bad heat impacts compared to now, AND would fall short of Paris Agreement goals.
www.climatecentral.org/report/10th-...
www.climatecentral.org/report/10th-...
Reposted by Tom Di Liberto
Disastrous storm surge struck western AK Sunday. All 6 NWS upper air sites in the area have chronic issues (see alt-text). In addition to no releases from 2 sites, 2 sites are releasing only 1x per day instead of 2x. 2 have intermittent issues, 1 of these (Nome) had no releases 10/9 or 10/10 (1/2)
October 14, 2025 at 2:21 AM
Disastrous storm surge struck western AK Sunday. All 6 NWS upper air sites in the area have chronic issues (see alt-text). In addition to no releases from 2 sites, 2 sites are releasing only 1x per day instead of 2x. 2 have intermittent issues, 1 of these (Nome) had no releases 10/9 or 10/10 (1/2)
With high surf and coastal flood warnings stretching along much of the East Coast, @climatecentral.org's Coastal Risk Finder is an incredibly useful tool to understand what and who is at risk.
app.climatecentral.org/coastal-risk...
app.climatecentral.org/coastal-risk...
October 12, 2025 at 2:51 PM
With high surf and coastal flood warnings stretching along much of the East Coast, @climatecentral.org's Coastal Risk Finder is an incredibly useful tool to understand what and who is at risk.
app.climatecentral.org/coastal-risk...
app.climatecentral.org/coastal-risk...
Reposted by Tom Di Liberto
Really great article by a great former colleague @tdiliberto.bsky.social on what a weak La Niña could mean as far as snowfall goes this year, and the long term winter snowfall trend across the U.S.: www.climate.gov/news-feature...
October 9, 2025 at 3:50 PM
Really great article by a great former colleague @tdiliberto.bsky.social on what a weak La Niña could mean as far as snowfall goes this year, and the long term winter snowfall trend across the U.S.: www.climate.gov/news-feature...
Of note, looking at the Relative Oceanic Nino Index (one that better takes into account warming trends), 14 of the last 15 three-month periods have qualified for La Nina. That includes the last two seasons (June-August, July-September).
www.cpc.ncep.noaa.gov/data/indices...
www.cpc.ncep.noaa.gov/data/indices...
October 9, 2025 at 3:12 PM
Of note, looking at the Relative Oceanic Nino Index (one that better takes into account warming trends), 14 of the last 15 three-month periods have qualified for La Nina. That includes the last two seasons (June-August, July-September).
www.cpc.ncep.noaa.gov/data/indices...
www.cpc.ncep.noaa.gov/data/indices...
Reposted by Tom Di Liberto
📣 Check it out! Explore the new data viz on our homepage: www.climatecentral.org
@climatecentral.org just released a new tool to explore climate impacts in U.S. cities and states - making complex data easier to understand for your community.
🚨 What’s the biggest Fall climate threat where you live?
@climatecentral.org just released a new tool to explore climate impacts in U.S. cities and states - making complex data easier to understand for your community.
🚨 What’s the biggest Fall climate threat where you live?
October 2, 2025 at 2:40 PM
📣 Check it out! Explore the new data viz on our homepage: www.climatecentral.org
@climatecentral.org just released a new tool to explore climate impacts in U.S. cities and states - making complex data easier to understand for your community.
🚨 What’s the biggest Fall climate threat where you live?
@climatecentral.org just released a new tool to explore climate impacts in U.S. cities and states - making complex data easier to understand for your community.
🚨 What’s the biggest Fall climate threat where you live?
Reposted by Tom Di Liberto
Climate change is global. But the impacts are felt locally. Climate Central has a new feature that can help you tell your city’s climate story, finding the impacts that matter the most for you and your community. 1/2
www.climatecentral.org/climate-local
www.climatecentral.org/climate-local
October 1, 2025 at 6:12 PM
Climate change is global. But the impacts are felt locally. Climate Central has a new feature that can help you tell your city’s climate story, finding the impacts that matter the most for you and your community. 1/2
www.climatecentral.org/climate-local
www.climatecentral.org/climate-local
I'm hiring! 🔽
What @ariellemargot.bsky.social said.
We're hiring a Social Media and Digital Content Creator!
www.climatecentral.org/open-positio...
We're hiring a Social Media and Digital Content Creator!
www.climatecentral.org/open-positio...
September 25, 2025 at 7:07 PM
I'm hiring! 🔽
Reposted by Tom Di Liberto
In case you missed the big news earlier this week...
We've brought the website of the Fifth National Climate Assessment back online. Explore it at nca5.climate.us
The assessment, which was released by the U.S. Global Change Research Program in 2023, is the most recent state of the science...
(1/2)
We've brought the website of the Fifth National Climate Assessment back online. Explore it at nca5.climate.us
The assessment, which was released by the U.S. Global Change Research Program in 2023, is the most recent state of the science...
(1/2)
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…
nca5.climate.us
September 25, 2025 at 3:41 PM
In case you missed the big news earlier this week...
We've brought the website of the Fifth National Climate Assessment back online. Explore it at nca5.climate.us
The assessment, which was released by the U.S. Global Change Research Program in 2023, is the most recent state of the science...
(1/2)
We've brought the website of the Fifth National Climate Assessment back online. Explore it at nca5.climate.us
The assessment, which was released by the U.S. Global Change Research Program in 2023, is the most recent state of the science...
(1/2)