PubHawk
October 2022 PMID 36215472

Spatial patterns of climate change across the Paleocene-Eocene Thermal Maximum.

Jessica E Tierney, Jiang Zhu, Mingsong Li, Andy Ridgwell, Gregory J Hakim, Christopher J Poulsen, Ross D M Whiteford, James W B Rae, Lee R Kump

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Mentions

83
Peak: 21 in Oct 2022
across 5 sources since Oct 2022

Extended reach

1,576,453
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Total likes

8,100

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507,759

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Oct 2022 – May 2025

Where it's discussed

  • X / Twitter40 posts
  • News33 articles
  • Blogs5 articles
  • YouTube3 videos
  • Reddit2 posts

AI synopsis

What people are saying

Several comments highlight the study’s use of paleoclimate data and how it reveals patterns like strong polar amplification, which many find insightful and relevant for grasping future climate scenarios. The tone ranges from academic curiosity to cautious reflection on the parallels with current climate change, demonstrating an engaged yet nuanced perspective.

AgreementModerate agreement

Most discussions acknowledge the significance of the study or match its findings, with some expressing caution about direct applicability to current climate issues.

InterestHigh interest

Posts display strong curiosity about paleoclimate data, their implications, and modeling techniques, indicating high engagement with the research.

EngagementModerate engagement

Comments include mentions of specific methods, spatial patterns, and climate sensitivity estimates, showing some deep engagement.

ImpactModerate impact

The discussions recognize the potential value of past climate patterns for understanding future climate risks, hinting at moderate perceived impact.

Abstract in brief

  • The study uses paleoclimate data assimilation to create a detailed, spatially complete reconstruction of climate patterns during the Paleocene-Eocene Thermal Maximum (PETM), revealing features like strong polar amplification and changes in the hydrological cycle.
  • The PETM showed significant warming, especially at the poles, with effects such as the narrowing of the Intertropical Convergence Zone and intensified monsoons, patterns similar to those projected under future climate change scenarios.
  • The research estimates the Earth's climate sensitivity during the PETM to be around 6.5°C, which is higher than today, suggesting that the climate becomes more sensitive to greenhouse gases as their concentrations increase.]
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Top posts

Most liked on X and Bluesky
Phys.org
@physorg_com · X

Maps of the past may shed light on our climate future @PNASNews https://t.co/LUG1JqXCIK https://t.co/MRI0rNCr0L

Oct 11, 2022 · 11 likes · 5 shares · 1,024,062 followers View post →
NielsdeWinter
@NielsJdeWinter · X

Another very nice #data #assimilation study by @leafwax and colleagues. This time of the #Eocene. I wonder whether including results from multiple climate models (beyond iCESM) would make a difference in the end result. https://t.co/n9KzYxZHre

Oct 11, 2022 · 6 likes · 740 followers View post →
Prof Darren Grocke
@GrockeSIBL · X

Spatial patterns of climate change across the Paleocene–Eocene Thermal Maximum @PNASNews https://t.co/koEYk77xqh

Oct 18, 2022 · 4 likes · 702 followers View post →
James William Owens
@Willard1951 · X

@ammocrypta @rln_nelson @NolanCarlton2 @CrispyCX @notGHGs @jimdtweet @spock246 @HikesTwo @robhon_ @1_TMF_ @Cicined2 @HtServadac @Dcoronata @Jamz129 @stevethib @stevenmosher @RushhourP @JoeTheAtheist @ladyspat1 @MonkeyMyBack @StormSignalSA @BubbasRanch @jgorman2424 @roadtoserfdom3 @Canadaequalfor1 @AtomsksSanakan @Andrewemcameron @DanCady @Setophaga9 @jwickers @Climatehope2 @InYourMind20xx @priscian @Kenneth72712993 @chris__soda @evileconboy @hobbit179 @KCTaz @TWTThisIsNow @redforged42 @DawnTJ90 @kjell_yvik @DCottrell1956 @ItsTheAtmospher @MartinJBern @struikmans @RedDragonFly19 @MassiMassian @quieroserabuela @BernardoVerda Moving on - I do hope this work on the PETM is not directly applicable to our current circumstances of rising GHG levels Tierney et al 'Spatial patterns of climate change across the Paleocene-Eocene Thermal Maximum' PNAS v119 e2205326119 2022 https://t.co/Gg7vEazGwC

Oct 12, 2022 · 4 likes · 492 followers View post →
窪田 薫
@kaoryu · X

データ同化の手法を利用して、温暖化のアナログとされるPETM（5500万年前）の気候状態を古気候データを基に復元。地球温暖化した際に予想される変化と類似しているものの、気候感度は当時はかなり高かったことが分かった。PNAS https://t.co/RCMy7mbaMC

Oct 16, 2022 · 3 likes · 1 share · 1,567 followers View post →
Really_Bad_At_Names, Good at Science
@25_cycle · X

@HenrikHindby @mattsissons25 @agentsinaction @Vulcan_hobo @JunkScience @TheDisproof "In this study, we quantify that sensitivity during the PETM and found that the sensitivity is between 5.7 to 7.4 degrees Celsius per doubling" Here's the absolute latest paper. https://t.co/9NNQ1c1Unm

Oct 18, 2022 · 1 like · 3,982 followers View post →

All mentions

Morning Tribes - Elf Morning Habits
@Mike39962570 · X

What Was The Earth Like When Humanity Began? https://t.co/3Cm9kbAy8w via @YouTube https://t.co/kJBpxwrOzc

May 1, 2025 · 698 followers View post →
Scott Simmons
@sjsimmons · X

@DarthBelal @CO2Coalition Meanwhile, on topic, warming events correspond with deoxygenation, and perhaps the best analog is the PETM. https://t.co/V6jHOMDo1R

Feb 24, 2025 · 1,272 followers View post →
Scott Simmons
@sjsimmons · X

@patfrank830 @Michael_D_Crow @Frnc_prep @jimdtweet @BobPartridge16 @BubbasRanch @Kenneth72712993 @JJ9621073059835 @LexWaters7 @ladyspat1 @FreeSpeech4U_Me @PushFourLeft @Devonian1342 @craigthomler @JamesAbbott2013 @TrixX306 @Mark_A_Lunn @ammocrypta @jgorman2424 @jgatta06 @ChrisBBacon3 @MLeiter42 @dafalgoutDennis @TypicalDeviant @isaacscradle @WHPAAD @priscian @CDCollins5269 @phlannelphysics @BenKoby1911 @ClimateRetorts @WayneAllanH @RobertWager1 @hannon_renee @RixAutomatedMat @DaleGribble_666 @GeorgeJeff9804 @roger_clague @kevpluck @GillesnFio @Joe_Public2018 @ClimatePoet @EthonRaptor @dantrimont @Quentin__France @PoeBrianL @ilovekiirth @IBergwiesel @jpgcrowley @NoelTurner194 Proxy and DA studies for the PETM show spatial patterns that do not do not support your "hypothesis." If the planet warmed because of the NAIP, we'd see the hottest temps & most warming near there. https://t.co/A

Feb 24, 2025 · 1 like · 1,272 followers View post →
Scott Simmons
@sjsimmons · X

@vanessa_vash 3/ We don't know that rapidly accelerated warming hasn't happened in the past; there's some evidence that it has, such as during the PETM. https://t.co/ARTCpBbJyb

Oct 15, 2024 · 1,272 followers View post →
RobertWx
@Trough_Digging · X

@igidderdun420 @bigal9976 @SarcasticNomad1 @liz_churchill10 3rd, geological record of past temperature maximums in the past point toward atmospheric Co2 content as being a primary factor in many examples of climate change https://t.co/DLxA1Fazie https://t.co/do4sZme2kO

Oct 7, 2024 · 174 followers View post →
Robert Walker
@jwalker28057853 · X

Hot and cold climate. https://t.co/l2j7q2umVy

Aug 11, 2024 · 666 followers View post →
Robert Walker
@RobertW54170706 · X

Hot and cold climate. https://t.co/Yw5ZVWGbxI

Aug 11, 2024 · 6 followers View post →
Ravick Bitencourt
@Ravick_BlueLion · X

What Was The Earth Like When Humanity Began? https://t.co/r0N0Xj9Ho1 via @YouTube

May 12, 2024 · 169 followers View post →
Ravick Bitencourt
@Ravick_BlueLion · X

What Was The Earth Like When Humanity Began? https://t.co/8NEgXNxYkt via @YouTube

May 12, 2024 · 169 followers View post →
Les W Kuzyk
@AnotherWealth · X

What Was The Earth Like When Humanity Began? https://t.co/ovwOixMKi5 via @YouTube

Mar 12, 2024 · 168 followers View post →
MyHappyAbby
@MyHappyAbby · X

https://t.co/ECQhFpJTWz

Dec 22, 2023 · 147 followers View post →
Jeremy W. Norwood
@JeremyWNorwood1 · X

https://t.co/qfB3jeocn7

Dec 18, 2023 · 1,030 followers View post →
Ravenwood
@rawnwyd · X

What Was The Earth Like When Humanity Began? https://t.co/aVhDzdv3Qt via @YouTube

Dec 9, 2023 · 454 followers View post →
לִי-אוֹן ביוסטר
@AslanYorgun5 · X

https://t.co/uYZL94zOns

Nov 30, 2023 · 349 followers View post →
Luke
@Lukea117 · X

Pt3 https://t.co/eLFu8MIH14

Nov 26, 2023 · 70 followers View post →
Don Sutherland
@DonSuth89069583 · X

It is 824 days since the IPCC declared that it is “unequivocal” that human activities have warmed the climate. Positive cloud feedbacks could amplify anthropogenic warming. #ClimateDaily https://t.co/JCwqE9xz6L

Nov 11, 2023 · 1,355 followers View post →
In Salutem
@ISalutem · X

Spatial patterns of climate change across the Paleocene–Eocene Thermal Maximum @leafwa et al. https://t.co/xG6f3Wg74Y

May 12, 2023 · 404 followers View post →
Haritz Jimenez
@haritzJU · X

@Nomaguanto @AEMET_Esp Y aquí uno de los mejores artículos científicos al respecto (publicado en la prestigiosa revista PNAS) incidiendo en el efecto acumulativo que el rápido aumento del CO2 puede hacer en el clima terrestre en base a la paleohistoria terrestre: https://t.co/rozw9eLgPC

Jan 3, 2023 · 423 followers View post →
Jim Safranek
@jimsafranek · X

@MatthewWielicki @SmZtif @josephenicholas Independent of runaway GH scenarios, the PETM provides the best analog to what we’re currently facing given the rapid introduction of atmospheric C… https://t.co/S1bJ929WGj

Nov 29, 2022 · 190 followers View post →
TrailSandals
@trailsandals · X

@geoffmcfarlan We’ve done the first part and are now at the “find out” stage https://t.co/hHCWMClw19

Oct 27, 2022 · 50 followers View post →
Dr Gabriel Rau
@hydrogeoscience · X

So devastating that all research points in one direction

Oct 26, 2022 · 774 followers View post →
Jussi Pasanen
@jopas · X

The study: https://t.co/9IFFiyBm0y

Oct 26, 2022 · 2,367 followers View post →
Tom Gill
@tomgillpredicts · X

Spatial patterns of climate change across the Paleocene–Eocene Thermal Maximum | Proceedings of the National Academy of Sciences https://t.co/plyiiQwqfU

Oct 19, 2022 · 1,573 followers View post →
NP AGARWAL世界一フォローを目指しますAiming best in world.
@np_grwl · X

RT @physorg_com: Maps of the past may shed light on our climate future @PNASNews https://t.co/LUG1JqXCIK https://t.co/MRI0rNCr0L

Oct 19, 2022 · 5 shares · 1,785 followers View post →
Prof Darren Grocke
@GrockeSIBL · X

Spatial patterns of climate change across the Paleocene–Eocene Thermal Maximum @PNASNews https://t.co/koEYk77xqh

Oct 18, 2022 · 4 likes · 702 followers View post →
Really_Bad_At_Names, Good at Science
@25_cycle · X

@HenrikHindby @mattsissons25 @agentsinaction @Vulcan_hobo @JunkScience @TheDisproof "In this study, we quantify that sensitivity during the PETM and found that the sensitivity is between 5.7 to 7.4 degrees Celsius per doubling" Here's the absolute latest paper. https://t.co/9NNQ1c1Unm

Oct 18, 2022 · 1 like · 3,982 followers View post →
かのん Kanon Kino
@kanonundgigue · X

RT @kaoryu: データ同化の手法を利用して、温暖化のアナログとされるPETM（5500万年前）の気候状態を古気候データを基に復元。地球温暖化した際に予想される変化と類似しているものの、気候感度は当時はかなり高かったことが分かった。PNAS https://t.co/RC…

Oct 16, 2022 · 1 share · 1,451 followers View post →
窪田 薫
@kaoryu · X

データ同化の手法を利用して、温暖化のアナログとされるPETM（5500万年前）の気候状態を古気候データを基に復元。地球温暖化した際に予想される変化と類似しているものの、気候感度は当時はかなり高かったことが分かった。PNAS https://t.co/RCMy7mbaMC

Oct 16, 2022 · 3 likes · 1 share · 1,567 followers View post →
fernanda castano
@ferwen · X

Spatial patterns of climate change across the Paleocene–Eocene Thermal Maximum | PNAS https://t.co/NyjPAsiqYX

Oct 13, 2022 · 2,678 followers View post →
James William Owens
@Willard1951 · X

@ammocrypta @rln_nelson @NolanCarlton2 @CrispyCX @notGHGs @jimdtweet @spock246 @HikesTwo @robhon_ @1_TMF_ @Cicined2 @HtServadac @Dcoronata @Jamz129 @stevethib @stevenmosher @RushhourP @JoeTheAtheist @ladyspat1 @MonkeyMyBack @StormSignalSA @BubbasRanch @jgorman2424 @roadtoserfdom3 @Canadaequalfor1 @AtomsksSanakan @Andrewemcameron @DanCady @Setophaga9 @jwickers @Climatehope2 @InYourMind20xx @priscian @Kenneth72712993 @chris__soda @evileconboy @hobbit179 @KCTaz @TWTThisIsNow @redforged42 @DawnTJ90 @kjell_yvik @DCottrell1956 @ItsTheAtmospher @MartinJBern @struikmans @RedDragonFly19 @MassiMassian @quieroserabuela @BernardoVerda Moving on - I do hope this work on the PETM is not directly applicable to our current circumstances of rising GHG levels Tierney et al 'Spatial patterns of climate change across the Paleocene-Eocene Thermal Maximum' PNAS v119 e2205326119 2022 https://t.co/Gg7vEazGwC

Oct 12, 2022 · 4 likes · 492 followers View post →
Thomas Bratananium
@bratananium · X

@LeonSimons8 @leafwax @mudwaterclimate 1S18 the climate sensitivity for the PETM is 6.5˚C. With 560ppm CO2e there is 6K global warming scheduled. 420ppm from CO2 + 161ppmCO2e from CH4 + GHG + => 580ppm CO2e are in the atmosphere. => 7K warming. https://t.co/CPBEXHNFbz https://t.co/akwdwQEf00 https://t.co/VtCYEZR5FJ

Oct 11, 2022 · 697 followers View post →
Thomas Bratananium
@bratananium · X

@leafwax @PNASNews 1S18 the climate sensitivity for the PETM is 6.5˚C. With 560ppm CO2e there is 6K global warming scheduled. 420ppm from CO2 + 161ppmCO2e from CH4 + GHG + => 580ppm CO2e are in the atmosphere. => 7K warming. https://t.co/CPBEXHNFbz https://t.co/akwdwQEf00 https://t.co/chrMRgmnIC

Oct 11, 2022 · 697 followers View post →
Thomas Bratananium
@bratananium · X

@leafwax @PNASNews this links works better https://t.co/CPBEXHNFbz

Oct 11, 2022 · 697 followers View post →
Thomas Bratananium
@bratananium · X

1S18 the climate sensitivity for the PETM is 6.5˚C. With 560ppm CO2e there is 6K global warming scheduled. 420ppm from CO2 + 161ppmCO2e from CH4 + GHG + => 580ppm CO2e are in the atmosphere. => 7K warming. https://t.co/CPBEXHNFbz https://t.co/akwdwQEf00 https://t.co/Ik2alRtDs4

Oct 11, 2022 · 697 followers View post →
SchwarZY
@Lord_DD_Rises · X

RT @physorg_com: Maps of the past may shed light on our climate future @PNASNews https://t.co/LUG1JqXCIK https://t.co/MRI0rNCr0L

Oct 11, 2022 · 5 shares · 307 followers View post →
DeepakPatrewal
@DeepakPatrewal · X

RT @physorg_com: Maps of the past may shed light on our climate future @PNASNews https://t.co/LUG1JqXCIK https://t.co/MRI0rNCr0L

Oct 11, 2022 · 5 shares · 372 followers View post →
ღ
@BenjiTaloula32 · X

RT @physorg_com: Maps of the past may shed light on our climate future @PNASNews https://t.co/LUG1JqXCIK https://t.co/MRI0rNCr0L

Oct 11, 2022 · 5 shares · 429 followers View post →
Phys.org Space News
@physorg_space · X

RT @physorg_com: Maps of the past may shed light on our climate future @PNASNews https://t.co/LUG1JqXCIK https://t.co/MRI0rNCr0L

Oct 11, 2022 · 5 shares · 12,224 followers View post →
Phys.org
@physorg_com · X

Maps of the past may shed light on our climate future @PNASNews https://t.co/LUG1JqXCIK https://t.co/MRI0rNCr0L

Oct 11, 2022 · 11 likes · 5 shares · 1,024,062 followers View post →
NielsdeWinter
@NielsJdeWinter · X

Another very nice #data #assimilation study by @leafwax and colleagues. This time of the #Eocene. I wonder whether including results from multiple climate models (beyond iCESM) would make a difference in the end result. https://t.co/n9KzYxZHre

Oct 11, 2022 · 6 likes · 740 followers View post →