Kris Karnauskas
@oceansclimatecu.bsky.social
Climate scientist leading the Oceans & Climate Lab @cuboulder.bsky.social | Associate Professor of Atmospheric & Oceanic Sciences | Fellow of @ciresnews.bsky.social | Editor-in-Chief @agu.org Geophysical Research Letters | www.colorado.edu/oclab
Reposted by Kris Karnauskas
Globally, no single day in 2025 was cooler than its 1991-2020 average.
climate.copernicus.eu/global-clima...
climate.copernicus.eu/global-clima...
January 14, 2026 at 12:44 PM
Globally, no single day in 2025 was cooler than its 1991-2020 average.
climate.copernicus.eu/global-clima...
climate.copernicus.eu/global-clima...
Reposted by Kris Karnauskas
🌍 Our new @natclimate.nature.com study, led by @xuyanbin.bsky.social shows climate variations like El Niño don’t just affect weather — they can shape long-term human health and economic outcomes. Proud to contribute on the climate science side.
www.nature.com/articles/s41...
#ENSO #PublicHealth
www.nature.com/articles/s41...
#ENSO #PublicHealth
January 9, 2026 at 11:04 AM
🌍 Our new @natclimate.nature.com study, led by @xuyanbin.bsky.social shows climate variations like El Niño don’t just affect weather — they can shape long-term human health and economic outcomes. Proud to contribute on the climate science side.
www.nature.com/articles/s41...
#ENSO #PublicHealth
www.nature.com/articles/s41...
#ENSO #PublicHealth
Reposted by Kris Karnauskas
Thinking about publishing your work with AGU?
Sign up for a 15 minute 1-on-1 meeting with an AGU editor at #AGU25 for advice on finding the right journal and submitting your work!
🔗 buff.ly/89flzjc
#AGUPubs #EarlyCareer
Sign up for a 15 minute 1-on-1 meeting with an AGU editor at #AGU25 for advice on finding the right journal and submitting your work!
🔗 buff.ly/89flzjc
#AGUPubs #EarlyCareer
December 2, 2025 at 10:01 PM
Thinking about publishing your work with AGU?
Sign up for a 15 minute 1-on-1 meeting with an AGU editor at #AGU25 for advice on finding the right journal and submitting your work!
🔗 buff.ly/89flzjc
#AGUPubs #EarlyCareer
Sign up for a 15 minute 1-on-1 meeting with an AGU editor at #AGU25 for advice on finding the right journal and submitting your work!
🔗 buff.ly/89flzjc
#AGUPubs #EarlyCareer
Need a little help! Student seeking high-freq (at least daily), high-res (~10 km or less) gridded ~surface ozone & PM2.5 observations. Next best thing would be hourly station-level data of surface O3 and PM2.5 with decent spatial coverage across the globe. Anyone out there know of such a dataset?
November 21, 2025 at 1:46 PM
Need a little help! Student seeking high-freq (at least daily), high-res (~10 km or less) gridded ~surface ozone & PM2.5 observations. Next best thing would be hourly station-level data of surface O3 and PM2.5 with decent spatial coverage across the globe. Anyone out there know of such a dataset?
ColdBlobMIP: A Multi-Model Assessment of the Atmospheric Response to the North Atlantic Warming Hole
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
October 4, 2025 at 10:13 PM
ColdBlobMIP: A Multi-Model Assessment of the Atmospheric Response to the North Atlantic Warming Hole
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
Reposted by Kris Karnauskas
Ocean scientists are one step closer to understanding the connection between warming in the Eastern Tropical Pacific Ocean and its impact on weather and climate. The new study by @oceanclilmatecu.bsky.social and partners in @agu.org Earth's Future is spotlighted here! buff.ly/Tcbj2fq
October 3, 2025 at 2:27 PM
Ocean scientists are one step closer to understanding the connection between warming in the Eastern Tropical Pacific Ocean and its impact on weather and climate. The new study by @oceanclilmatecu.bsky.social and partners in @agu.org Earth's Future is spotlighted here! buff.ly/Tcbj2fq
Reposted by Kris Karnauskas
Today, we published a study long in the making on how upper and subsurface tropical Pacific waters responded (and maybe will adjust) to warmer global climate. Here’s the story of how we got here after 15 years. many authors but shout out @jfarmersalmanac.bsky.social
🌊
www.science.org/doi/10.1126/...
🌊
www.science.org/doi/10.1126/...
Persistent eastern equatorial Pacific Ocean upwelling since the warm Pliocene
Upwelling generates a nutrient-rich “cold tongue” in the eastern equatorial Pacific Ocean (EEP), with impacts on global climate, oceanic biological productivity, and the carbon cycle. The cold tongue ...
www.science.org
October 3, 2025 at 12:04 AM
Today, we published a study long in the making on how upper and subsurface tropical Pacific waters responded (and maybe will adjust) to warmer global climate. Here’s the story of how we got here after 15 years. many authors but shout out @jfarmersalmanac.bsky.social
🌊
www.science.org/doi/10.1126/...
🌊
www.science.org/doi/10.1126/...
Reposted by Kris Karnauskas
The "U.S. Climate Collection" is now open for proposals! A joint initiative of AMS and @agu.org, the Collection will help sustain the momentum of U.S. climate assessment research.
Learn more and submit your proposal: bit.ly/46JuY71
Learn more and submit your proposal: bit.ly/46JuY71
September 25, 2025 at 1:30 PM
The "U.S. Climate Collection" is now open for proposals! A joint initiative of AMS and @agu.org, the Collection will help sustain the momentum of U.S. climate assessment research.
Learn more and submit your proposal: bit.ly/46JuY71
Learn more and submit your proposal: bit.ly/46JuY71
Reposted by Kris Karnauskas
📢 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
"mentorship is a two-way exchange that energizes and inspires all participants to become active agents of change"
tos.org/oceanography...
tos.org/oceanography...
FEATURE ARTICLE • Mentors: The Hidden Beneficiaries of Mentoring | Oceanography
tos.org
September 5, 2025 at 2:20 AM
"mentorship is a two-way exchange that energizes and inspires all participants to become active agents of change"
tos.org/oceanography...
tos.org/oceanography...
Editorial published today by the Editors-in-Chief of the @agu.org journals:
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
The Executive Order “Restoring Gold Standard Science” is Dangerous for America
This EO is an unconstitutional attempt to censor and punish U.S. scientists for publishing science that doesn't fit a political agenda This misleading and false misrepresentation of U.S. scientif...
agupubs.onlinelibrary.wiley.com
August 20, 2025 at 1:25 PM
Editorial published today by the Editors-in-Chief of the @agu.org journals:
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
The visible sharpness of the transition between calm and windy is incredible.
Look closely!!
Taken today from NOAA Hurricane Hunters on tne edge of an intense eyewall in Hurricane #Erin… See how the ocean surface calm inside the eye but turbulent & rough in the eyewall!
Taken today from NOAA Hurricane Hunters on tne edge of an intense eyewall in Hurricane #Erin… See how the ocean surface calm inside the eye but turbulent & rough in the eyewall!
August 16, 2025 at 9:50 PM
The visible sharpness of the transition between calm and windy is incredible.
Big El Niños 🌊 usually come with big 🌎 teleconnections.
The one in 2023/24 didn't. Why?
Rainfall anomalies in the tropical Pacific were suppressed due to greater warming in Indian and Atlantic Oceans.
www.nature.com/articles/s43...
Led by Lei Zhang, with @matcollins.bsky.social
@cires.colorado.edu
The one in 2023/24 didn't. Why?
Rainfall anomalies in the tropical Pacific were suppressed due to greater warming in Indian and Atlantic Oceans.
www.nature.com/articles/s43...
Led by Lei Zhang, with @matcollins.bsky.social
@cires.colorado.edu
The 2023/24 El Niño event exhibited unusually weak extratropical teleconnections - Communications Earth & Environment
Extreme sea surface temperature warming in the tropical Indian Ocean and Atlantic in 2023 suppressed the rainfall pattern induced by the 2023/24 El Niño, reducing its tropical and extra-tropical impac...
www.nature.com
August 2, 2025 at 11:16 PM
Big El Niños 🌊 usually come with big 🌎 teleconnections.
The one in 2023/24 didn't. Why?
Rainfall anomalies in the tropical Pacific were suppressed due to greater warming in Indian and Atlantic Oceans.
www.nature.com/articles/s43...
Led by Lei Zhang, with @matcollins.bsky.social
@cires.colorado.edu
The one in 2023/24 didn't. Why?
Rainfall anomalies in the tropical Pacific were suppressed due to greater warming in Indian and Atlantic Oceans.
www.nature.com/articles/s43...
Led by Lei Zhang, with @matcollins.bsky.social
@cires.colorado.edu
A new observational benchmark for equatorial upwelling
@usclivar.bsky.social Research Highlight
Our general tendency to underestimate equatorial upwelling may offer a clue into the disagreement between historical trends and climate model simulations of Pacific SSTs.
usclivar.org/research-hig...
@usclivar.bsky.social Research Highlight
Our general tendency to underestimate equatorial upwelling may offer a clue into the disagreement between historical trends and climate model simulations of Pacific SSTs.
usclivar.org/research-hig...
June 16, 2025 at 2:24 PM
A new observational benchmark for equatorial upwelling
@usclivar.bsky.social Research Highlight
Our general tendency to underestimate equatorial upwelling may offer a clue into the disagreement between historical trends and climate model simulations of Pacific SSTs.
usclivar.org/research-hig...
@usclivar.bsky.social Research Highlight
Our general tendency to underestimate equatorial upwelling may offer a clue into the disagreement between historical trends and climate model simulations of Pacific SSTs.
usclivar.org/research-hig...
Reposted by Kris Karnauskas
Groundwater levels in the Southwest & Pacific Northwest responded differently to precipitation changes during the Last Glacial Termination, according to new research led by @whoi.edu's Alan Seltzer & co-authored by CIRES Fellow Kris Karnauskas.
Read the story: cires.colorado.edu/news/groundw...
Read the story: cires.colorado.edu/news/groundw...
June 11, 2025 at 7:30 PM
Groundwater levels in the Southwest & Pacific Northwest responded differently to precipitation changes during the Last Glacial Termination, according to new research led by @whoi.edu's Alan Seltzer & co-authored by CIRES Fellow Kris Karnauskas.
Read the story: cires.colorado.edu/news/groundw...
Read the story: cires.colorado.edu/news/groundw...
Reposted by Kris Karnauskas
Climate.gov, a major US government website supporting public education on climate science, will likely shut down after almost all of its staff were fired. What would be worse is if the website were co-opted to publish climate denial content.
Major US climate website likely to be shut down after almost all staff fired
Exclusive: Climate.gov, which supports public education on climate science, will soon no longer publish new content
www.theguardian.com
June 11, 2025 at 11:21 AM
Climate.gov, a major US government website supporting public education on climate science, will likely shut down after almost all of its staff were fired. What would be worse is if the website were co-opted to publish climate denial content.
The @agu.org is seeking Editors & Associate Editors for Geophysical Research Letters (GRL)! Help shape cutting-edge Earth & space science, support peer review & boost your professional impact.
Ad 👉 www.agu.org/publications...
Apply by 15 June 👉 forms.monday.com/forms/7a4ad5...
Ad 👉 www.agu.org/publications...
Apply by 15 June 👉 forms.monday.com/forms/7a4ad5...
June 9, 2025 at 3:45 AM
Reposted by Kris Karnauskas
New work led by former CIRES Visiting Fellow Chris Little uncovered 3 distinct spatial patterns in Pacific Ocean tide gauge sea level records. @oceansclimatecu.bsky.social @colorado.edu
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Pan-Pacific low-frequency modes of sea level and climate variability
Coastal sea level records suggest that Pacific Ocean sea level and climate trends are unlikely to persist over the coming decades.
www.science.org
June 2, 2025 at 1:41 PM
New work led by former CIRES Visiting Fellow Chris Little uncovered 3 distinct spatial patterns in Pacific Ocean tide gauge sea level records. @oceansclimatecu.bsky.social @colorado.edu
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Sea level and climate variability in the Pacific Ocean
Work led by former @cires.colorado.edu Visiting Fellow Chris Little uncovered 3 distinct spatial patterns in Pacific Ocean tide gauge sea level records...
cires.colorado.edu/spotlights/s...
Work led by former @cires.colorado.edu Visiting Fellow Chris Little uncovered 3 distinct spatial patterns in Pacific Ocean tide gauge sea level records...
cires.colorado.edu/spotlights/s...
Sea level and climate variability in the Pacific Ocean
<p>Work led by former CIRES Visiting Fellow Chris Little uncovered 3 distinct spatial patterns in Pacific Ocean tide gauge sea level records:</p><ol><li>A spatially uniform rise, smaller than that fou...
cires.colorado.edu
May 30, 2025 at 10:43 PM
Sea level and climate variability in the Pacific Ocean
Work led by former @cires.colorado.edu Visiting Fellow Chris Little uncovered 3 distinct spatial patterns in Pacific Ocean tide gauge sea level records...
cires.colorado.edu/spotlights/s...
Work led by former @cires.colorado.edu Visiting Fellow Chris Little uncovered 3 distinct spatial patterns in Pacific Ocean tide gauge sea level records...
cires.colorado.edu/spotlights/s...
Every day, Jeffco's airport exports their lead and noise pollution all over Boulder County including Superior, Louisville & Lafayette. This was a single day last week.
May 28, 2025 at 3:05 PM
Every day, Jeffco's airport exports their lead and noise pollution all over Boulder County including Superior, Louisville & Lafayette. This was a single day last week.
The @agu.org is seeking Editors & Associate Editors for Geophysical Research Letters (GRL)! Help shape cutting-edge Earth & space science, support peer review & boost your professional impact.
Ad 👉 www.agu.org/publications...
Apply by 15 June 👉 forms.monday.com/forms/7a4ad5...
Ad 👉 www.agu.org/publications...
Apply by 15 June 👉 forms.monday.com/forms/7a4ad5...
May 15, 2025 at 12:02 AM
The @agu.org is seeking Editors & Associate Editors for Geophysical Research Letters (GRL)! Help shape cutting-edge Earth & space science, support peer review & boost your professional impact.
Ad 👉 www.agu.org/publications...
Apply by 15 June 👉 forms.monday.com/forms/7a4ad5...
Ad 👉 www.agu.org/publications...
Apply by 15 June 👉 forms.monday.com/forms/7a4ad5...
Reposted by Kris Karnauskas
Join us 27 May for a webinar with the Editors-in-Chief of AGU Advances & AGU GRL—Dr. Montanari & Dr. Karnauskas. Hear from the experts & ask your questions! 👉 buff.ly/JqUpumU
#AGU #AGUPublications #science
#AGU #AGUPublications #science
May 12, 2025 at 12:33 PM
Join us 27 May for a webinar with the Editors-in-Chief of AGU Advances & AGU GRL—Dr. Montanari & Dr. Karnauskas. Hear from the experts & ask your questions! 👉 buff.ly/JqUpumU
#AGU #AGUPublications #science
#AGU #AGUPublications #science
Published today in the @ametsoc.org Journal of Climate, my rather long paper shows that the average upwelling in the equatorial Pacific is 13.1 ± 6.9 meters per day. This is much faster than historical estimates and the latest generation of global climate models.
journals.ametsoc.org/view/journal...
journals.ametsoc.org/view/journal...
May 8, 2025 at 6:22 PM
Published today in the @ametsoc.org Journal of Climate, my rather long paper shows that the average upwelling in the equatorial Pacific is 13.1 ± 6.9 meters per day. This is much faster than historical estimates and the latest generation of global climate models.
journals.ametsoc.org/view/journal...
journals.ametsoc.org/view/journal...
Reposted by Kris Karnauskas
New research from CIRES Fellow Kris Karnauskas found that widely-used estimates of upwelling along the equator in the Pacific Ocean are far off — the water is rising much faster. @oceansclimatecu.bsky.social @colorado.edu @ametsoc.org
Read the story: cires.colorado.edu/news/pacific...
Read the story: cires.colorado.edu/news/pacific...
May 8, 2025 at 6:04 PM
New research from CIRES Fellow Kris Karnauskas found that widely-used estimates of upwelling along the equator in the Pacific Ocean are far off — the water is rising much faster. @oceansclimatecu.bsky.social @colorado.edu @ametsoc.org
Read the story: cires.colorado.edu/news/pacific...
Read the story: cires.colorado.edu/news/pacific...