RealClimate feed
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Climate Science from Climate Scientists since 2004
https://www.realclimate.org
RealClimate: A reflection on reflection
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RealClimate: A reflection on reflection
RealClimate: Confirmation bias and a profound lack of curiosity mark the latest ABC (Anything But Carbon) contrapalooza in DC this week and a decade-old albedo error trips them up. I occasionally dip ...
https://www.realclimate.org/index.php/archives/2026/04/a-reflection-on-reflection/
1 day ago
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(Repost w/thumbnail image)
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RealClimate: Spencerâs Shenanigans: Part II
RealClimate: We previously highlighted Roy Spencer's poor practices in comparing models with observations, but we've now dug down a little deeper, and it's not pretty. A few weeks ago, the email excha...
https://www.realclimate.org/index.php/archives/2026/04/spencers-shenanigans-part-ii/
9 days ago
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RealClimate: Spencerâs Shenanigans: Part II
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RealClimate: Spencerâs Shenanigans: Part II
RealClimate: We previously highlighted Roy Spencer's poor practices in comparing models with observations, but we've now dug down a little deeper, and it's not pretty. A few weeks ago, the email excha...
https://www.realclimate.org/index.php/archives/2026/04/spencers-shenanigans-part-ii/
9 days ago
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RealClimate: The Puzzling Pleistocene
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RealClimate: The Puzzling Pleistocene
RealClimate: The mystery of why the last million or so years of glacial variability are so different to what came before just got more mysterious... It's easy to understand why the ice ages have such ...
https://www.realclimate.org/index.php/archives/2026/03/the-puzzling-pleistocene/
27 days ago
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RealClimate: How robust is our accelerometer?
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RealClimate: How robust is our accelerometer?
RealClimate: A new analysis of historical temperatures suggests that things are getting warmer faster, but what does it mean for the future?
https://www.realclimate.org/index.php/archives/2026/03/how-robust-is-our-accelerometer/
about 1 month ago
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RealClimate: EPAâs final* ruling on CO2
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RealClimate: EPAâs final* ruling on CO2
RealClimate: The EPA has announced its final* ruling on the CO2 Endangerment Finding. *not even close to final. Notably, they have completely abandoned any reliance on the DOE's CWG report. The EPA is...
https://www.realclimate.org/index.php/archives/2026/02/epas-final-ruling-on-co2/
about 2 months ago
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RealClimate: The Climate Science reference they donât want Judges to read
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RealClimate: The Climate Science reference they donât want Judges to read
RealClimate: For the first time, the Federal Judicial Center (FJC) commissioned a chapter on climate science for the manual they put out (with the NASEM) for judges, the Reference on Scientific Eviden...
https://www.realclimate.org/index.php/archives/2026/02/the-climate-science-reference-they-dont-want-judges-to-read/
2 months ago
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RealClimate: Kooninâs Continuing Calumnies
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RealClimate: Kooninâs Continuing Calumnies
RealClimate: At a public event debating the DOE CWG report, Steve Koonin embarrasses himself further. This week there was a bit of a peculiar event at the Civitas Institute at Texas A&M, with three of...
https://www.realclimate.org/index.php/archives/2026/02/koonins-continuing-calumnies/
2 months ago
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RealClimate: 2025 Updates
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RealClimate: 2025 Updates
RealClimate: Our various graphics and model-observation comparisons have been updated with 2025 data. There are a few version updates that make some difference (particularly in sea ice extent), but th...
https://www.realclimate.org/index.php/archives/2026/01/2025-updates/
3 months ago
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RealClimate: A peek behind the curtainâŠ
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RealClimate: A peek behind the curtainâŠ
RealClimate: New email releases from the EDF/UCS lawsuit against the DOE provide a rarely-seen behind the curtain look at how the climate contrarians work. The new releases of non-governmental emails ...
https://www.realclimate.org/index.php/archives/2026/01/a-peek-behind-the-curtain/
3 months ago
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RealClimate: AI/ML climate magic?
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RealClimate: AI/ML climate magic?
RealClimate: There has been a frenzy around artificial intelligence and deep machine learning (AI/ML) since the âChatGPT Momentâ in 2022, and AI/ML is for sure going to affect us all. It strikes me th...
https://www.realclimate.org/index.php/archives/2026/01/ai-ml-climate-magic/
3 months ago
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RealClimate: 1.5ÂșC and all that
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RealClimate: 1.5ÂșC and all that
RealClimate: The Paris Agreement temperature limits are a little ambiguous and knowing where we are is tricky. The desire to keep global temperature rises since the pre-industrial, ideally below 1.5ÂșC...
https://www.realclimate.org/index.php/archives/2025/12/1-5oc-and-all-that/
4 months ago
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RealClimate: Who should pay?
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RealClimate: Who should pay?
RealClimate: Climate risk scores on real estate listings are having an impact on prices and realtors are complaining. But who should pay for these losses? If you have been browsing Zillow or Redfin in...
https://www.realclimate.org/index.php/archives/2025/11/who-should-pay/
4 months ago
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RealClimate: Time and Tide Gauges wait for no Voortman
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RealClimate: Time and Tide Gauges wait for no Voortman
RealClimate: Here we go again. An obscure, methodologically poor, paper published with little to no review makes a convenient point and gets elevated into supposedly 'blockbusting' science by the merc...
https://www.realclimate.org/index.php/archives/2025/09/time-and-tide-gauges-wait-for-no-voortman/
7 months ago
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RealClimate: Lilâ NAS Express
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RealClimate: Lilâ NAS Express
RealClimate: The fast-tracked update of the 2009 EPA Endangerment finding from the National Academies for Science, Engineering and Mathematics (NASEM), has now been released. Unsurprisingly, it has co...
https://www.realclimate.org/index.php/archives/2025/09/lil-nas-express/
7 months ago
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RealClimate: DOE CWG Report âMootâ?
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RealClimate: DOE CWG Report âMootâ?
RealClimate: Somewhat breaking news. A court filing (from 9/4) from DOE has noted that the Climate Working Group has been disbanded (as of 9/3). This was done to make the EDF/UCS lawsuit moot, but it ...
https://www.realclimate.org/index.php/archives/2025/09/doe-cwg-report-moot/
7 months ago
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RealClimate: Critique of Chapter 6 âExtreme Weatherâ in the DOE review
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RealClimate: Critique of Chapter 6 âExtreme Weatherâ in the DOE review
RealClimate: Guest commentary by Kerry Emanuel Executive Summary Chapter 6 of the draft DOE report examines whether global warming exacerbates extreme weather. It rightly notes that because events suc...
https://www.realclimate.org/index.php/archives/2025/09/critique-of-chapter-6-extreme-weather-in-the-doe-review/
7 months ago
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RealClimate: Climate Scientists response to DOE report
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RealClimate: Climate Scientists response to DOE report
RealClimate: As we've mentioned, Andrew Dessler and Robert Kopp have been coordinating a scientific peer review of the DOW 'CWG' Critique of Climate Science. It is now out. The comments are available ...
https://www.realclimate.org/index.php/archives/2025/09/climate-scientists-response-to-doe-report/
7 months ago
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RealClimate: Critiques of the âCritical Reviewâ
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RealClimate: Critiques of the âCritical Reviewâ
RealClimate: The first somewhat comprehensive reviews of the DOE critical review are now coming online. First out of the gate is a nice interactive from CarbonBrief based on direct input from scientis...
https://www.realclimate.org/index.php/archives/2025/08/critiques-of-the-critical-review/
8 months ago
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RealClimate: Are direct water vapor emissions endangering anyone?
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RealClimate: Are direct water vapor emissions endangering anyone?
RealClimate: In the EPA EF reconsideration document there is a section on p62 where they attempt to make the argument that the CO2 endangerment finding would also apply to direct water vapor emissions...
https://www.realclimate.org/index.php/archives/2025/07/are-direct-water-vapor-emissions-endangering-anyone/
9 months ago
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RealClimate: The Endangerment of the Endangerment Finding?
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RealClimate: The Endangerment of the Endangerment Finding?
RealClimate: The EPA, along with the "Climate Working Group" (CWG) of usual suspects (plus Judith Curry and Ross McKitrick) at DOE, have just put out a document for public comment their attempt to res...
https://www.realclimate.org/index.php/archives/2025/07/the-endangerment-of-the-endangerment-finding/
9 months ago
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RealClimate: Ocean circulation going South?
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RealClimate: Ocean circulation going South?
RealClimate: Some intriguing new measurements of salinity in the oceans around Antarctica have set off reams of sensationalist speculations. Maybe some context is helpful... What we've been seeing The...
https://www.realclimate.org/index.php/archives/2025/07/ocean-circulation-going-south/
9 months ago
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RealClimate: Melange Ă Trois
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RealClimate: Melange Ă Trois
RealClimate: In honor of the revelation today, that Koonin, Christy and Spencer have been made Special Government Employees at the Dept. of Energy, we present a quick round up of our commentary on the...
https://www.realclimate.org/index.php/archives/2025/07/melange-a-trois/
9 months ago
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RealClimate: Predicted Arctic sea ice trends over time
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RealClimate: Predicted Arctic sea ice trends over time
RealClimate: Over multiple generations of CMIP models Arctic sea ice trend predictions have gone from much too stable to about right. Why? The diagnostics highlighted in our model-observations compari...
https://www.realclimate.org/index.php/archives/2025/05/predicted-arctic-sea-ice-trends-over-time/
11 months ago
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RealClimate: The most recent climate status
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RealClimate: The most recent climate status
RealClimate: The Arctic Councilâs Arctic Monitoring and assessment Programme (AMAP) recently released a Summary for PolicyMakersâ Arctic Climate Change Update 2024. It is one of several stock taking e...
https://www.realclimate.org/index.php/archives/2025/05/the-most-recent-climate-status/
11 months ago
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RealClimate: WMO: Update on 2023/4 Anomalies
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RealClimate: WMO: Update on 2023/4 Anomalies
RealClimate: The WMO released its (now) annual state of the climate report this week. As well as the (now) standard set of graphs related to increasing greenhouse gas concentrations, rising temperatur...
https://www.realclimate.org/index.php/archives/2025/03/wmo-update-on-2023-4-anomalies/
11 months ago
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RealClimate: Andean glaciers have shrunk more than ever before in the entire Holocene
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RealClimate: Andean glaciers have shrunk more than ever before in the entire Holocene
RealClimate: Glaciers are important indicators of climate change. A recent study published in the leading journal Science shows that glaciers in the tropical Andes have now retreated further than at a...
https://www.realclimate.org/index.php/archives/2025/03/andean-glaciers-have-shrunk-more-than-ever-before-in-the-holocene/
about 1 year ago
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RealClimate: Climate change in Africa
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RealClimate: Climate change in Africa
RealClimate: [latexpage] While there have been some recent set-backs within science and climate research and disturbing news about NOAA, there is also continuing efforts on responding to climate chang...
https://www.realclimate.org/index.php/archives/2025/03/climate-change-in-africa/
about 1 year ago
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RealClimate: We need NOAA now more than ever
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RealClimate: We need NOAA now more than ever
RealClimate: Guest commentary by Robert Hart, Kerry Emanuel, & Lance Bosart The National Weather Service (NWS) and its parent agency, the National Oceanic and AtmosphericAdministration (NOAA), deliver...
https://www.realclimate.org/index.php/archives/2025/03/we-need-noaa-now-more-than-ever/
about 1 year ago
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RealClimate: How will media report on this new AMOC study?
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RealClimate: How will media report on this new AMOC study?
RealClimate: Iâve been getting a lot of media queries about a new paper on the AMOC (Atlantic Meridional Overturning Circulation), which has just been published. In my view this large media interest i...
https://www.realclimate.org/index.php/archives/2025/02/how-will-media-report-on-this-new-amoc-study/
about 1 year ago
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Unforced Variations: Feb 2025
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Unforced Variations: Feb 2025
This month's open thread on climate-related topics.
https://www.realclimate.org/index.php/archives/2025/02/unforced-variations-feb-2025/
about 1 year ago
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RealClimate: Comparison Update 2024
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Comparison Update 2024
One more dot on the graphs for our annual model-observations comparisons updates. Given how extraordinary the last two years have been, there are a few highlights to note. First, we have updated...
https://www.realclimate.org/index.php/archives/2025/01/comparison-update-2024/
about 1 year ago
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RealClimate: The AMOC is slowing, itâs stable, itâs slowing, no, yes, âŠ
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The AMOC is slowing, it’s stable, it’s slowing, no, yes, …
There's been a bit of media whiplash on the issue of AMOC slowing lately - ranging from the AMOC being on the brink of collapse to it being more stable than previously thought. AMOC, of course, refers...
https://www.realclimate.org/index.php/archives/2025/01/the-amoc-is-slowing-its-stable-its-slowing-no-yes/
about 1 year ago
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RealClimate: 2024 Hindsight
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2024 Hindsight
To no-one's surprise 2024 was the warmest year on record - and by quite a clear margin. Another year, another data point. Unlike the previous year, 2024 was anticipated to be a record breaker...
https://www.realclimate.org/index.php/archives/2025/01/2024-hindsight/
over 1 year ago
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RealClimate: Nature 2023: Part II
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Nature 2023: Part II
This is a follow-on post to the
https://www.realclimate.org/index.php/archives/2024/12/nature-2023-part-ii/
over 1 year ago
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RealClimate: Twenty years of blogging in hindsight
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Twenty years of blogging in hindsight
Itâs 20 years since we started blogging on climate here on RealClimate (December 10, 2004). We wanted to counter disinformation about climate change that was spreading through various campaigns. In th...
https://www.realclimate.org/index.php/archives/2024/11/twenty-years-of-blogging-in-hindsight/
over 1 year ago
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RealClimate: Operationalizing Climate Science
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Operationalizing Climate Science
There is a need to make climate science more agile and more responsive, and that means moving (some of it) from research to operations.
https://www.realclimate.org/index.php/archives/2024/11/operationalizing-climate-science/
over 1 year ago
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RealClimate: Science is not value free
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over 1 year ago
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RealClimate: New journal: Nature 2023?
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over 1 year ago
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RealClimate: Cold extremes do in fact decrease under global warming
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over 1 year ago
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RealClimate: Phantastic Job!
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over 1 year ago
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RealClimate: Oh My, Oh Miocene!
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over 1 year ago
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RealClimate: The need for pluralism in climate modelling
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over 1 year ago
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