Hemant Khatri
@hemant-khatri.bsky.social
Physical Oceanographer and Climate Scientist | Senior Scientist @ UK Met Office | hmkhatri.github.io | views and thoughts expressed here are my own
Pinned
Excited to share our latest research, which tries to answer the question of “how long does the ocean remember?”
To find out more, see press release and article.
news.liverpool.ac.uk/2024/12/03/r...
@ricliv.bsky.social @timwoollings.bsky.social
To find out more, see press release and article.
news.liverpool.ac.uk/2024/12/03/r...
@ricliv.bsky.social @timwoollings.bsky.social
Excited to share our new publication in GRL
We examine how a seasonal North Atlantic Oscillation affects the thermal and biogeochemical states in the North Atlantic Ocean for many years.
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
@agu.org @ricliv.bsky.social
We examine how a seasonal North Atlantic Oscillation affects the thermal and biogeochemical states in the North Atlantic Ocean for many years.
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
@agu.org @ricliv.bsky.social
Contrasting Fast and Slow Ocean Thermal, Carbon and Nutrient Responses to the North Atlantic Oscillation
Ocean thermal, carbon and nutrient states respond to the North Atlantic Oscillation on fast and slow timescales, lasting up to a decade
Thermal variability is driven by anomalous surface winds an...
agupubs.onlinelibrary.wiley.com
December 7, 2025 at 10:57 AM
Excited to share our new publication in GRL
We examine how a seasonal North Atlantic Oscillation affects the thermal and biogeochemical states in the North Atlantic Ocean for many years.
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
@agu.org @ricliv.bsky.social
We examine how a seasonal North Atlantic Oscillation affects the thermal and biogeochemical states in the North Atlantic Ocean for many years.
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
@agu.org @ricliv.bsky.social
Reposted by Hemant Khatri
COP30 overpromised, underdelivered, empowered distractions, backtracked on issues and once again gave big oil and big ag a free pass.
Unfortunately, the suspicions of climate scientists (here in Brazil and abroad) were confirmed again.
Unfortunately, the suspicions of climate scientists (here in Brazil and abroad) were confirmed again.
November 22, 2025 at 7:47 PM
COP30 overpromised, underdelivered, empowered distractions, backtracked on issues and once again gave big oil and big ag a free pass.
Unfortunately, the suspicions of climate scientists (here in Brazil and abroad) were confirmed again.
Unfortunately, the suspicions of climate scientists (here in Brazil and abroad) were confirmed again.
Reposted by Hemant Khatri
Science fraud is on the rise, facilitated by for-profit, open-access journals (Richardson et al, 2025, PNAS). These same journals are accelerating author and reviewer burnout by profiting from quantity while neglecting quality. Choose society journals where reputation and community are everything!
November 19, 2025 at 8:05 PM
Science fraud is on the rise, facilitated by for-profit, open-access journals (Richardson et al, 2025, PNAS). These same journals are accelerating author and reviewer burnout by profiting from quantity while neglecting quality. Choose society journals where reputation and community are everything!
Reposted by Hemant Khatri
New data modelling suggests that the world is on track to warm by 2°C and 3°C even if countries met every near-term climate pledge and hit their targets for net-zero CO₂ emissions
For the first time, climate models show the 1.5°C goal is dead
Governments have failed to limit global warming. What comes next?
econ.st
November 9, 2025 at 6:20 PM
New data modelling suggests that the world is on track to warm by 2°C and 3°C even if countries met every near-term climate pledge and hit their targets for net-zero CO₂ emissions
Reposted by Hemant Khatri
Record warm ocean temperatures continued in September across the North Pacific Ocean, with a number of consequential impacts (including on downstream weather patterns).
This graph shows the average for a band across the midlatitudes for every September from 1854-2025 using @noaa.gov ERSSTv5 data.
This graph shows the average for a band across the midlatitudes for every September from 1854-2025 using @noaa.gov ERSSTv5 data.
October 4, 2025 at 4:00 PM
Record warm ocean temperatures continued in September across the North Pacific Ocean, with a number of consequential impacts (including on downstream weather patterns).
This graph shows the average for a band across the midlatitudes for every September from 1854-2025 using @noaa.gov ERSSTv5 data.
This graph shows the average for a band across the midlatitudes for every September from 1854-2025 using @noaa.gov ERSSTv5 data.
Reposted by Hemant Khatri
Two stories juxtaposed on the BBC website... sigh.
Anyone else spot the irony here?
Anyone else spot the irony here?
August 31, 2025 at 4:19 PM
Two stories juxtaposed on the BBC website... sigh.
Anyone else spot the irony here?
Anyone else spot the irony here?
Reposted by Hemant Khatri
Heavy monsoon rains trigger flash floods across Pakistan and India, forcing mass evacuations and causing deaths.
Deadly Monsoon Rains Force Mass Evacuations in South Asia
Heavy monsoon rains have triggered flash floods across Pakistan and India, forcing mass evacuations and causing deaths.
bloom.bg
August 27, 2025 at 8:00 AM
Heavy monsoon rains trigger flash floods across Pakistan and India, forcing mass evacuations and causing deaths.
Reposted by Hemant Khatri
@metoffice.gov.uk ‘s 'State of the UK Climate' report is out today, with some key findings:
🌊UK sea level is rising faster than the global average
🌡️extremes are becoming the norm
🥇record breaking weather events are becoming more frequent
🔥the last 3 yrs have been in the UK's top 5 warmest on record
🌊UK sea level is rising faster than the global average
🌡️extremes are becoming the norm
🥇record breaking weather events are becoming more frequent
🔥the last 3 yrs have been in the UK's top 5 warmest on record
July 14, 2025 at 11:38 AM
@metoffice.gov.uk ‘s 'State of the UK Climate' report is out today, with some key findings:
🌊UK sea level is rising faster than the global average
🌡️extremes are becoming the norm
🥇record breaking weather events are becoming more frequent
🔥the last 3 yrs have been in the UK's top 5 warmest on record
🌊UK sea level is rising faster than the global average
🌡️extremes are becoming the norm
🥇record breaking weather events are becoming more frequent
🔥the last 3 yrs have been in the UK's top 5 warmest on record
Reposted by Hemant Khatri
The Secretary of Commerce's new policy requiring his personal review of all NOAA contracts over $100,000 is directly harming American science. 🧪
How do I know? Because this morning, twelve of America's rising leaders in climate science (including myself) were furloughed.
How do I know? Because this morning, twelve of America's rising leaders in climate science (including myself) were furloughed.
July 7, 2025 at 2:46 PM
The Secretary of Commerce's new policy requiring his personal review of all NOAA contracts over $100,000 is directly harming American science. 🧪
How do I know? Because this morning, twelve of America's rising leaders in climate science (including myself) were furloughed.
How do I know? Because this morning, twelve of America's rising leaders in climate science (including myself) were furloughed.
Reposted by Hemant Khatri
What a tragedy this is even being proposed on paper... 💔
NOAA FY2026 Congressional Justification: www.noaa.gov/sites/defaul...
NOAA FY2026 Congressional Justification: www.noaa.gov/sites/defaul...
June 30, 2025 at 4:19 PM
What a tragedy this is even being proposed on paper... 💔
NOAA FY2026 Congressional Justification: www.noaa.gov/sites/defaul...
NOAA FY2026 Congressional Justification: www.noaa.gov/sites/defaul...
Reposted by Hemant Khatri
Excellent post by @dinahvp.bsky.social on the plan to devastate NOAA research, with quotes from @franklinjamesl.bsky.social @wxmanms1.bsky.social. "Only a small fraction of NOAA Research would remain and be transferred to the NWS, including portions of the weather, tornado and technology research."
NOAA budget package details plans to reduce spending, staff, climate research and shut down its labs and cooperative institutes with universities. #NOAA #climatechange www.usatoday.com/story/news/n...
NOAA budget spells out plans to reduce spending and abandon climate research
A detailed expense budget for NOAA outlines plans to reduce spending and cut climate and atmospheric research.
www.usatoday.com
July 1, 2025 at 7:10 PM
Excellent post by @dinahvp.bsky.social on the plan to devastate NOAA research, with quotes from @franklinjamesl.bsky.social @wxmanms1.bsky.social. "Only a small fraction of NOAA Research would remain and be transferred to the NWS, including portions of the weather, tornado and technology research."
Reposted by Hemant Khatri
Awful. More horrible science news
"The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) learned yesterday that the Department of Defense (DoD) will stop processing & delivering the Special Sensor Microwave Imager/Sounder (SSMIS) data no later than 30 June 2025."
"The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) learned yesterday that the Department of Defense (DoD) will stop processing & delivering the Special Sensor Microwave Imager/Sounder (SSMIS) data no later than 30 June 2025."
June 25, 2025 at 7:38 PM
Awful. More horrible science news
"The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) learned yesterday that the Department of Defense (DoD) will stop processing & delivering the Special Sensor Microwave Imager/Sounder (SSMIS) data no later than 30 June 2025."
"The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) learned yesterday that the Department of Defense (DoD) will stop processing & delivering the Special Sensor Microwave Imager/Sounder (SSMIS) data no later than 30 June 2025."
Reposted by Hemant Khatri
I know there’s a lot of news right now but this is really crazy. They’re booting the National Science Foundation out of its newish building with no plans for where 1800 people are going to go.
National Science Foundation Staff Booted From Headquarters - Eos
Staff at the National Science Foundation (NSF) were notified on 25 June that the agency’s office space, located in Alexandria, Va., will be taken over by Department of Housing and Urban Development (H...
eos.org
June 25, 2025 at 4:59 PM
I know there’s a lot of news right now but this is really crazy. They’re booting the National Science Foundation out of its newish building with no plans for where 1800 people are going to go.
Great initiative by Bill Gates. The global economic uncertainty and wars are hitting poor countries the most. Hope this initiative would provide the required investment.
Bill Gates: Microsoft founder to give most of $200bn fortune to Africa
Bill Gates: Microsoft founder to give most of $200bn fortune to Africa
The Microsoft founder urges young innovators to use Artificial Intelligence to improve health services.
www.bbc.com
June 4, 2025 at 2:05 PM
Great initiative by Bill Gates. The global economic uncertainty and wars are hitting poor countries the most. Hope this initiative would provide the required investment.
Reposted by Hemant Khatri
Excited to share new research in the Journal of Geophysical Research:Oceans with @andyhogg.bsky.social, @navidcy.bsky.social, Ryan Holmes, and @hemant-khatri.bsky.social on how the North Atlantic Oscillation impacts the basin's subtropical and subpolar gyres: doi.org/10.1029/2024... 🌊
May 30, 2025 at 2:11 PM
Excited to share new research in the Journal of Geophysical Research:Oceans with @andyhogg.bsky.social, @navidcy.bsky.social, Ryan Holmes, and @hemant-khatri.bsky.social on how the North Atlantic Oscillation impacts the basin's subtropical and subpolar gyres: doi.org/10.1029/2024... 🌊
Reposted by Hemant Khatri
Trump just revoked the ability for foreign students to enroll at Harvard. Every foreign student, which is in the thousands, enrolled for next year at Harvard will not be able to continue studying if this isn't challenged in court.
www.nytimes.com/2025/05/22/u...
www.nytimes.com/2025/05/22/u...
Trump Administration Halts Harvard’s Ability to Enroll International Students
www.nytimes.com
May 22, 2025 at 5:55 PM
Trump just revoked the ability for foreign students to enroll at Harvard. Every foreign student, which is in the thousands, enrolled for next year at Harvard will not be able to continue studying if this isn't challenged in court.
www.nytimes.com/2025/05/22/u...
www.nytimes.com/2025/05/22/u...
Reposted by Hemant Khatri
Updated Climate Visuals
(1) Warming stripes for atmosphere and ocean
(2) Climate indicators (adding land humidity for 2024)
(3) UK climate indicators (adding some 2024 data)
ed-hawkins.github.io/climate-visu...
(1) Warming stripes for atmosphere and ocean
(2) Climate indicators (adding land humidity for 2024)
(3) UK climate indicators (adding some 2024 data)
ed-hawkins.github.io/climate-visu...
May 12, 2025 at 8:27 AM
Updated Climate Visuals
(1) Warming stripes for atmosphere and ocean
(2) Climate indicators (adding land humidity for 2024)
(3) UK climate indicators (adding some 2024 data)
ed-hawkins.github.io/climate-visu...
(1) Warming stripes for atmosphere and ocean
(2) Climate indicators (adding land humidity for 2024)
(3) UK climate indicators (adding some 2024 data)
ed-hawkins.github.io/climate-visu...
Reposted by Hemant Khatri
RIP American science: NSF faces radical shake-up as officials abolish its 37 divisions, layoff staff, and terminate more funded grants.
Exclusive: NSF faces radical shake-up as officials abolish its 37 divisions
Changes seen as a response to presidential directives on what research to fund
www.science.org
May 9, 2025 at 6:44 AM
RIP American science: NSF faces radical shake-up as officials abolish its 37 divisions, layoff staff, and terminate more funded grants.
Interesting study showing economic losses due to emissions by individual fossil fuel companies.
Such studies aimed at quantifying economic losses and emissions by individual sectors, companies and countries are needed to determine accountability for global warming.
www.nature.com/articles/s41...
Such studies aimed at quantifying economic losses and emissions by individual sectors, companies and countries are needed to determine accountability for global warming.
www.nature.com/articles/s41...
Carbon majors and the scientific case for climate liability - Nature
A transparent and reproducible scientific framework is introduced to formalize how trillions in economic losses are attributable to the extreme heat caused by emissions from fossil fuel companies, whi...
www.nature.com
May 1, 2025 at 3:53 PM
Interesting study showing economic losses due to emissions by individual fossil fuel companies.
Such studies aimed at quantifying economic losses and emissions by individual sectors, companies and countries are needed to determine accountability for global warming.
www.nature.com/articles/s41...
Such studies aimed at quantifying economic losses and emissions by individual sectors, companies and countries are needed to determine accountability for global warming.
www.nature.com/articles/s41...
Reposted by Hemant Khatri
"The possible elimination of the lab, called GFDL, in concert with potential cuts to other NOAA operations, threatens irreparable harm not only to global understanding of climate change and long-range scenarios for the planet but to the country’s safety, competitiveness and national security."
White House Proposal Could Gut Climate Modeling the World Depends On
Potential funding cuts for NOAA and its research partners threaten irreparable harm not only to climate research but to American safety, competitiveness, and national security.
www.propublica.org
April 24, 2025 at 1:55 PM
"The possible elimination of the lab, called GFDL, in concert with potential cuts to other NOAA operations, threatens irreparable harm not only to global understanding of climate change and long-range scenarios for the planet but to the country’s safety, competitiveness and national security."
That's definitely on my reading list.
Why is Antarctica so important?
Antarctica might feel very remote - until you look at the planet from a different perspective. It's actually central to our world's ocean currents.
🎁 Check the alt text to dig into this diagram
🌊 This is from a new book by BAS' @oceanandice.bsky.social (et al.)
Antarctica might feel very remote - until you look at the planet from a different perspective. It's actually central to our world's ocean currents.
🎁 Check the alt text to dig into this diagram
🌊 This is from a new book by BAS' @oceanandice.bsky.social (et al.)
April 22, 2025 at 3:36 PM
That's definitely on my reading list.
Looks like Trump has vowed to destroy everything, including oceans, climate research, trade, freedom of speech.
Trump Opens Marine National Monument to Commercial Fisheries www.nytimes.com/2025/04/17/c... | I wish I could say this was unprecedented. But it’s happened once before in history- the last time Trump was President.
Sigh.
Sigh.
Trump Opens Marine National Monument to Commercial Fisheries
The president said the move was aimed at making the United States the world’s “dominant seafood leader.”
www.nytimes.com
April 18, 2025 at 12:45 PM
Looks like Trump has vowed to destroy everything, including oceans, climate research, trade, freedom of speech.
Reposted by Hemant Khatri
"To envision the disastrous impact of this plan, one only needs to see what NOAA research has provided to the U.S. taxpayer and imagine where we would be without it."
"Now is the time to reach out to your elected representatives."
"Stand Up for NOAA Research" - @nwas.org and @ametsoc.org statement
"Now is the time to reach out to your elected representatives."
"Stand Up for NOAA Research" - @nwas.org and @ametsoc.org statement
Stand Up for NOAA Research – The Time to Act is Now
The AMS is a global community committed to advancing weather, water, and climate science and service.
www.ametsoc.org
April 17, 2025 at 6:35 PM
"To envision the disastrous impact of this plan, one only needs to see what NOAA research has provided to the U.S. taxpayer and imagine where we would be without it."
"Now is the time to reach out to your elected representatives."
"Stand Up for NOAA Research" - @nwas.org and @ametsoc.org statement
"Now is the time to reach out to your elected representatives."
"Stand Up for NOAA Research" - @nwas.org and @ametsoc.org statement
That's insane.
Holy shit.
The National Science Foundation (NSF) has halted the awarding of previously approved proposals to ensure compliance with presidential directives following the arrival of DOGE at the science funding agency.
The National Science Foundation (NSF) has halted the awarding of previously approved proposals to ensure compliance with presidential directives following the arrival of DOGE at the science funding agency.
NSF halts grant awards while staff do second review
Action comes after DOGE team arrives at science agency
www.science.org
April 17, 2025 at 7:51 AM
That's insane.