El Niño threatens food, health
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The World Health Organization warned a strong El Niño would peak late 2026 and persist through February 2027, increasing floods, droughts, heat and mosquito-borne disease and raising Asian food-price risks.
Reposted by Erle C. Ellis
I have a new piece out in Nature today on the record-breaking 2026/2027 El Niño, what impacts we should expect, and how governments can prepare. The Niño3.4 region is currently running more than 1C hotter than any prior event on record, and we remain months away from the peak www.nature.com/artic...
September 22, 2026 at 5:40 PM
I have a new piece out in Nature today on the record-breaking 2026/2027 El Niño, what impacts we should expect, and how governments can prepare. The Niño3.4 region is currently running more than 1C hotter than any prior event on record, and we remain months away from the peak www.nature.com/artic...
NEW PAPER: In a new paper, jointly published in @agu.org Earth's Future & @ametsoc.org BAMS, and co-led by Melissa Kenney, @costasamaras.com and me, 175 authors outline priorities to guide the future of scientific assessments of climate change in the United States. 🧵
Research Priorities for Robust Climate Assessments in the United States
A network of climate assessments plays a critical role in synthesizing the state of science to support evidence-based decision-making To support future U.S. and sub-national climate assessments, ...
doi.org
September 22, 2026 at 1:04 PM
NEW PAPER: In a new paper, jointly published in @agu.org Earth's Future & @ametsoc.org BAMS, and co-led by Melissa Kenney, @costasamaras.com and me, 175 authors outline priorities to guide the future of scientific assessments of climate change in the United States. 🧵
@albomp.bsky.social’s government…
“Let’s approve more coal and gas projects and use our oxymoronic safeguard mechanism to pretend it’s all sweet!”
www.theguardian.com/environment/...
“Let’s approve more coal and gas projects and use our oxymoronic safeguard mechanism to pretend it’s all sweet!”
www.theguardian.com/environment/...
‘Jaw-dropping’ El Niño bursts through temperature record months before peak
‘Godzilla-level’ phenomenon is supercharging the climate crisis and will have a huge impact on communities across the world
www.theguardian.com
September 21, 2026 at 9:36 PM
@albomp.bsky.social’s government…
“Let’s approve more coal and gas projects and use our oxymoronic safeguard mechanism to pretend it’s all sweet!”
www.theguardian.com/environment/...
“Let’s approve more coal and gas projects and use our oxymoronic safeguard mechanism to pretend it’s all sweet!”
www.theguardian.com/environment/...
by Michael E. Mann Reposted by Jonathan A. Foley
NO! This study definitely does *not* provide a continuous reconstruction of El Niño spanning the past millennium. In fact, my main criticism was that it is *missing* critical (based on our own climate model simulations) segments. See this thread: bsky.app/profile/mich...
September 21, 2026 at 8:02 PM
NO! This study definitely does *not* provide a continuous reconstruction of El Niño spanning the past millennium. In fact, my main criticism was that it is *missing* critical (based on our own climate model simulations) segments. See this thread: bsky.app/profile/mich...
BBC News - Developing El Niño becomes strongest on record weeks before expected peak - BBC Weather
www.bbc.co.uk/weather/arti...
www.bbc.co.uk/weather/arti...
Developing El Niño becomes strongest on record weeks before expected peak
Scientists say the developing El Niño is now the strongest on record with weather impacts already being felt around the world.
www.bbc.co.uk
September 22, 2026 at 2:08 PM
BBC News - Developing El Niño becomes strongest on record weeks before expected peak - BBC Weather
www.bbc.co.uk/weather/arti...
www.bbc.co.uk/weather/arti...
by Dana R. Fisher Reposted by Katharine Hayhoe, Ryan K. Brook
Who's Talking about Climate Change (and why does it matter)? Some big thoughts connecting our new report with @tccollab.bsky.social to my piece with @katharinehayhoe.com in TIME and the importance of storytelling.
danarfisher.com/2026/09/21/w...
danarfisher.com/2026/09/21/w...
September 22, 2026 at 1:10 PM
Who's Talking about Climate Change (and why does it matter)? Some big thoughts connecting our new report with @tccollab.bsky.social to my piece with @katharinehayhoe.com in TIME and the importance of storytelling.
danarfisher.com/2026/09/21/w...
danarfisher.com/2026/09/21/w...
Yes, this is a huge El Niño. No, @theguardian.com we do not have a reliable thousand year-long record of El Niño (e.g. a continuous reconstruction of the Niño3 or Niño3.4 SST index) so this statement is not warranted. What's the attribution for that claim?
This year’s El Niño is on course to be the largest in at least *1,000* years. That’s going to drive excess heat into the atmosphere and combined with man-made heating will make 2027 the hottest year ever recorded.
#climatecrisis
#climatecrisis
‘Jaw-dropping’ El Niño bursts through temperature record months before peak
‘Godzilla-level’ phenomenon is supercharging the climate crisis and will have a huge impact on communities across the world
www.theguardian.com
September 21, 2026 at 10:36 PM
Yes, this is a huge El Niño. No, @theguardian.com we do not have a reliable thousand year-long record of El Niño (e.g. a continuous reconstruction of the Niño3 or Niño3.4 SST index) so this statement is not warranted. What's the attribution for that claim?
I sure hope that as the climate continues to change, climate people won’t get nastier and nastier to each other online, and subject each other to ever stricter purity tests…
…while the people who are actively accelerating the problems, and aren’t even on here, laugh all the way to the bank
…while the people who are actively accelerating the problems, and aren’t even on here, laugh all the way to the bank
September 22, 2026 at 10:51 AM
I sure hope that as the climate continues to change, climate people won’t get nastier and nastier to each other online, and subject each other to ever stricter purity tests…
…while the people who are actively accelerating the problems, and aren’t even on here, laugh all the way to the bank
…while the people who are actively accelerating the problems, and aren’t even on here, laugh all the way to the bank
Yet we will hear all about it at Climate Week…
September 22, 2026 at 1:17 AM
Yet we will hear all about it at Climate Week…
Yes, this is a huge El Niño. No, @theguardian.com we do not have a reliable thousand year-long record of El Niño (e.g. a continuous reconstruction of the Niño3 or Niño3.4 SST index) so this statement is not warranted. What's the attribution for that claim?
www.theguardian.com/environment/...
www.theguardian.com/environment/...
September 21, 2026 at 7:43 PM
Yes, this is a huge El Niño. No, @theguardian.com we do not have a reliable thousand year-long record of El Niño (e.g. a continuous reconstruction of the Niño3 or Niño3.4 SST index) so this statement is not warranted. What's the attribution for that claim?
www.theguardian.com/environment/...
www.theguardian.com/environment/...
“It will spawn a string of weather catastrophes around our world.”
‘Jaw-dropping’ El Niño bursts through temperature record months before peak
‘Godzilla-level’ phenomenon is supercharging the climate crisis and will have a huge impact on communities across the world
www.theguardian.com
September 22, 2026 at 9:46 AM
“It will spawn a string of weather catastrophes around our world.”
NO! This study definitely does *not* provide a continuous reconstruction of El Niño spanning the past millennium. In fact, my main criticism was that it is *missing* critical (based on our own climate model simulations) segments. See this thread: bsky.app/profile/mich...
September 21, 2026 at 10:30 PM
No, this study definitely does *not* provide a continuous reconstruction of El Niño spanning the past millennium. In fact, my main criticism was that it is *missing* critical (based on our own climate model simulations) segments. See this thread: bsky.app/profile/mich...
Maybe here @michaelemann.bsky.social (unless I am misunderstanding?): www.science.org/doi/10.1126/...? But it is a bit puzzling to not have a source or attribution if so...
Recent strengthening of eastern Pacific ENSO in the last millennium paleorecord
The Pacific El Niño–Southern Oscillation (ENSO) generates climate extremes that endanger ecosystems, infrastructure, and human well-being worldwide. The response of this system to climate warming is p...
www.science.org
September 21, 2026 at 7:57 PM
No, this study definitely does *not* provide a continuous reconstruction of El Niño spanning the past millennium. In fact, my main criticism was that it is *missing* critical (based on our own climate model simulations) segments. See this thread: bsky.app/profile/mich...
We are in uncharted territory...
It’s official, the 2026 El Niño has broken a record for the highest ocean anomaly in 170+ years… Incredibly reaching that threshold a full 2 months ahead of 2015’s record of +3.02C set on Nov 18th.
See that red line? That’s 2026.
Every other bold line are the strongest El Niño’s on record. 1/
See that red line? That’s 2026.
Every other bold line are the strongest El Niño’s on record. 1/
September 21, 2026 at 9:03 PM
We are in uncharted territory...
Reposted by David Johnson
El Niño is breaking every existing record already, and it's got weeks to go before it's likely to hit a peak.
We're going to see a warmer world than any humans before us this year
billmckibben.substack.com/p/hold-my-wa...
We're going to see a warmer world than any humans before us this year
billmckibben.substack.com/p/hold-my-wa...
Hold my (warm) beer
It’s Existential Crises Week!
billmckibben.substack.com
September 22, 2026 at 1:26 AM
El Niño is breaking every existing record already, and it's got weeks to go before it's likely to hit a peak.
We're going to see a warmer world than any humans before us this year
billmckibben.substack.com/p/hold-my-wa...
We're going to see a warmer world than any humans before us this year
billmckibben.substack.com/p/hold-my-wa...
There is a half century of work using historical documentary evidence to assess past El Nino behavior (with limited fidelity). This evidence is even discussed in the original MBH98 "hockey stick" article: michaelmann.net/sites/defaul...
September 21, 2026 at 8:01 PM
There is a half century of work using historical documentary evidence to assess past El Nino behavior (with limited fidelity). This evidence is even discussed in the original MBH98 "hockey stick" article: michaelmann.net/sites/defaul...
The worst El Niño in recorded history is brewing — here’s how governments must prepare idp.nature.com/authorize?re...
The worst El Niño in recorded history is brewing — here’s how governments must prepare
From southern Africa to the Amazon, the risks are mounting and the window for action is rapidly closing.
idp.nature.com
September 22, 2026 at 10:57 AM
The worst El Niño in recorded history is brewing — here’s how governments must prepare idp.nature.com/authorize?re...
Sadly the gun has been well and truly jumped by the @theguardian.com with this one. El Niño is not yet the strongest on record, even in the latest weekly data. But it seems almost inevitable that it will be.
*you have to use a relative index at least a month long to claim an El Niño record.
*you have to use a relative index at least a month long to claim an El Niño record.
September 21, 2026 at 8:01 PM
Sadly the gun has been well and truly jumped by the @theguardian.com with this one. El Niño is not yet the strongest on record, even in the latest weekly data. But it seems almost inevitable that it will be.
*you have to use a relative index at least a month long to claim an El Niño record.
*you have to use a relative index at least a month long to claim an El Niño record.
Reposted by Martin Heidenreich
The world has made real progress in steering away from some of the darkest climate futures where global emissions doubled (or more) this century. But as David Wallace-Wells and I note in today's NYT, we are not out of the woods yet, and climate uncertainty is not our friend: www.nytimes.com/2026...
September 22, 2026 at 3:26 PM
The world has made real progress in steering away from some of the darkest climate futures where global emissions doubled (or more) this century. But as David Wallace-Wells and I note in today's NYT, we are not out of the woods yet, and climate uncertainty is not our friend: www.nytimes.com/2026...