by Nic Lewis The determination of equilibrium climate sensitivity (ECS)—the long-term warming response to doubled atmospheric CO2 concentrations—remains one of the most crucial yet challenging problems in climate science. Recent exchanges in the literature have highlighted both the complexity of … Continue reading → The post Addressing misconceptions about Climate Sensitivity research: a Response to recent Criticisms appeared first on Climate Etc..| Climate Etc.
by Art Rangno How we fooled ourselves about the effectiveness of cloud seeding. The Colorado River Basin Pilot Project (CRBPP, 1970-75) is still the most ambitious, expensive randomized orographic cloud seeding project in US history. It featured an unprecedented amount … Continue reading → The post Cloud Seeding History: Looking Back at the Colorado River Basin Pilot Project appeared first on Climate Etc..| Climate Etc.
by Judith Curry Climate science is baaaack Energy Secretary Chris Wright has commissioned a new climate assessment report: A Critical Review of Impacts of Greenhouse Gas Emissions on the U.S. Climate From the Secretary’s Foreword: What I’ve found is that … Continue reading →| Climate Etc.
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By Joachim Dengler Are the natural carbon sinks failing? For a long time, the discussion about the relation between temperature and CO2 concentration has been focused on the greenhouse effect and its possible feedback mechanisms, captured by the concept of sensitivity. … Continue reading →| Climate Etc.
Monthly Archives: August 2021 | Climate Etc.
by Frank Bosse A recent paper published in “Nature” made some excitement in the media, see here or here. In the paper by Li & Chakraborty (L&C 2020 thereafter), the authors find a statistically significant increase of the decay time … Continue reading →| Climate Etc.
Monthly Archives: May 2025 | Climate Etc.
by Planning Engineer (Russ Schussler) Part 3 of this series examines power markets, promoted by policymakers (FERC) and industry advocates to lower costs through competitive bidding and merit-order dispatch. While markets can optimize resource allocation in many sectors, they struggle … Continue reading →| Climate Etc.
by Planning Engineer (Russ Schussler) In Part 1, we showed how wind and solar’s low costs over 80% of the time are overwhelmed by expenses at peak times such that they offer no cost advantages to the generation mix. Residential … Continue reading → The post Why “cheaper” solar raises costs. Part II: The hidden costs of residential solar appeared first on Climate Etc..| Climate Etc.
by Planning Engineer (Russ Schussler) Wind and solar power are often touted as the cheapest sources of electricity in many regions, capable of delivering low-cost energy for the vast majority of the time. At first glance, this might suggest that … Continue reading → The post Why “cheaper” wind and solar raise costs. Part I: The fat tail problem appeared first on Climate Etc..| Climate Etc.
by Judith Curry and Harry DeAngelo We have a new paper published in the Journal of Applied Corporate Finance, entitled “A Critique of the Apocalyptic Climate Narrative.” The paper reflects the JACF’s ongoing interest in publishing articles that analyze important … Continue reading →| Climate Etc.
by Russ Schussler (Planning Engineer) On April 28th Spain, Portugal and parts of France suffered a major grid outage. A formal evaluation will likely be released at a later date cataloging many of the contributing factors and system deficiencies. Unfortunately, … Continue reading →| Climate Etc.
by Douglas Sheil Last week an article in Science, by Seo and colleagues, provided compelling evidence that the world’s land surface is getting drier. This global drying averaged a loss across all land surfaces of over two centimeters of water … Continue reading → The post Reversing soil desiccation: cooler, moister, greener appeared first on Climate Etc..| Climate Etc.
by Chris Morris Geothermal power stations are mature technology with proven performance, reliable operation and ideal for baseload generation. The units are synchronous, so they support the grid. The production from them is considered by most to be renewable. They … Continue reading →| Climate Etc.
by Ross McKitrick Two new peer-reviewed papers from independent teams confirm that climate models overstate atmospheric warming and the problem has gotten worse over time, not better. The papers are Mitchell et al. (2020) “The vertical profile of recent tropical … Continue reading →| Climate Etc.
by Ross McKitrick I have a new paper out in the journal Nature Scientific Reports in which I re-examine some empirical work regarding agricultural yield changes under CO2-induced climate warming. An influential 2017 study had argued that warming would cause … Continue reading → The post Debunking the 2023 hike in the Social Cost of Carbon appeared first on Climate Etc..| Climate Etc.
by Planning Engineer (Russ Schussler) The purpose of this article is to summarize and debunk many of the issues in the narrative surrounding the proposed green energy transition as applies to the electric grid. The issues are so numerous that … Continue reading →| Climate Etc.
by Russ Schussler (Planning Engineer) Prequel to “Unravelling the narrative supporting a green energy transition.”| Climate Etc.
by John Ridgway How an emergent scientific consensus results from social engineering enabled by prosocial censorship.| Climate Etc.
by Planning Engineer (Russ Schussler) In October of 2024, the isolated small city of Broken Hill in New South Wales, Australia with a 36 MW load (including the large nearby mines) could not be reliably served by 200 MW of … Continue reading → The post Wind and Solar Can’t Support the Grid appeared first on Climate Etc..| Climate Etc.
by Lucas Bergkamp On the 12th of November, the Hague Court of Appeal ruled in the “climate case of the century” that Milieudefensie (“FoE”) filed against Shell in 2019. FoE demands that…| Climate Etc.
by Frank Bosse Neither the trend analysis nor the model-observation comparison supports the conclusions of the attribution study that found: “The combined change, attributable to human-induced climate change, is roughly a doubling in likelihood and a 7% increase in intensity.” … Continue reading →| Climate Etc.
by Dan Hughes This post challenges the conventional framework for simulating meltwater flows on glaciers and ice sheets.| Climate Etc.
by Leigh Haugen AI’s role in amplifying dominant narratives will continue to stifle dissent, limit open debate, and impose restrictive controls on society. If we allow this to continue unchec…| Climate Etc.
by Dr. Joachim Dengler This post is the second of two extracts from the paper Improvements and Extension of the Linear Carbon Sink Model. Introduction – The linear carbon sink model has a limitation The relation between CO2 Emission and … Continue reading →| Climate Etc.
by Bruce Peachey and Nobuo Maeda Contemporary climate models only include the impact of water vapor as positive feedback on warming; the impact of direct anthropogenic emissions of water vapor has not been seriously considered. Background Recent climate change and … Continue reading →| Climate Etc.
by Joachim Dengler This post is the first of two extracts from the paper Improvements and Extension of the Linear Carbon Sink Model. Introduction – Modelling the Carbon Cycle of the Atmosphere When a complex system is analyzed, there are … Continue reading →| Climate Etc.
By Javier Vinós The climate event of 2023 was truly exceptional, but the prevailing catastrophism about climate change hinders its proper scientific analysis. I present arguments that support the view that we are facing an extraordinary and extremely rare natural … Continue reading →| Climate Etc.
by Judith Curry Today I’m participating in a panel on K-12 education, hosted by the National Association of Scholars. You can watch the event on youtube. The even is launching a new document called the Franklin Standards on K-12 education, … Continue reading →| Climate Etc.
By Javier Vinós Part I in this series on the Sun and climate described how we know that the Sun has been responsible for some of the major climate changes that have occurred over the past 11,000 years. In Part … Continue reading →| Climate Etc.
by Judith Curry Last January, I visited Prager U in California. I recorded several videos. Science.feedback.org has done a fact check on my 5 minute video, which is the topic of this post Here is information about Prager U. Here … Continue reading →| Climate Etc.
by Javier Vinós Part 2 of a 3-part series. Part I is here. The effect of the Sun on climate has been debated for 200 years. The basic problem is that when we study the past, we observe strong climatic … Continue reading →| Climate Etc.
by Judith Curry My talk on Climate Uncertainty and Risk, presented at the Annual GWPF Lecture Video of the presentation [here]. My ppt slides can be downloaded here [ GWPF uncert & risk (2)]. Josh has prepared a cartoon montage: … Continue reading →| Climate Etc.
by Judith Curry “Europe’s highest human rights court ruled Tuesday that countries must better protect their people from the consequences of climate change , siding with a group of older Swiss women against their government in a landmark ruling that could … Continue reading →| Climate Etc.
by Javier Vinós The unlikely volcano, the warmest year, and the collapse of the polar vortex. The climate events of 2022-24 have been were truly extraordinary. From an unlikely undersea volcanic eruption to the warmest year on record to the … Continue reading →| Climate Etc.
by Judith Curry The latest developments. Some new filings from Mark Steyn: New Trial: https://www.steynonline.com/documents/14131.pdf Judgment as Matter of Law: https://www.steynonline.com/documents/14132.pdf Stay of Execution: https://www.steynonline.com/documents/14133.pdf Further details at steynonline [link]| Climate Etc.
The United Nations’ Intergovernmental Panel on Climate Change (IPCC) published their latest assessment report (AR6) in 2021. In 2023, the Clintel Foundation published a report which criticizes AR6. Clintel is short for Climate Intelligence, and the Clintel Foundation doesn’t think … Continue reading →| Climate Etc.
By Planning Engineer Russ Schussler “Renewable good, non-renewable bad” is far too simplistic and unfortunately influential Previous posts have argued that renewable does not necessarily mean green, sustainable or environmentally sound. Non-renewable generation may meet green goals, be highly sustainable … Continue reading →| Climate Etc.
By Planning Engineer (Russ Schussler) “Renewables”: some resources support a healthy grid, other challenge it The first part of this series discussed some of the shortcomings of the renewable/nonrenewable dichotomy. Renewable generation resources are not necessarily sustainable or environmentally sound … Continue reading →| Climate Etc.
by Judith Curry BREAKING. The verdict is in – GUILTY. Mann’s lawyer introduced into evidence an old ethics complaint against Michael Mann that I had addressed to the Penn State admin…| Climate Etc.
by Russell Schussler (Planning Engineer) Part I: Renewable energy as a grouping lacks coherence This series will look in depth at the inherent and emerging flaws within the renewable/nonrenewable framework for classifying generating energy resources. It may have made sense … Continue reading →| Climate Etc.
by Nicola Scafetta My new paper demonstrates that realistic emissions scenarios and climate sensitivity values & scenarios of natural climate variability produce more realistic, non-alarming scenarios of 21st century climate. I would like to thank Judith Curry for inviting me … Continue reading →| Climate Etc.
by Ross McKitrick I have a new paper in the peer-reviewed journal Environmetrics discussing biases in the “optimal fingerprinting” method which climate scientists use to attribute climatic changes to greenhouse gas emissions. This is the third in my series of … Continue reading →| Climate Etc.
by Javier Vinós Alan Longhurst died last December 7th in the hospital of Figeac in Occitanie (France), where he had been admitted a few days earlier following a fall in nearby Cajarc, the small town where he lived. Alan has … Continue reading →| Climate Etc.
by Judith Curry “Working in global energy and development, I often hear people say, ‘Because of climate, we just can’t afford for everyone to live our lifestyles.’ That viewpoint is worse than patronizing. It’s a form of racism, and it’s … Continue reading →| Climate Etc.
by Balázs M. Fekete For over three decades, the reduction of CO2 emission was the primary motivation for promoting the transition from fossil fuels to alternative energy sources. Concerns about the inevitable exhaustion of fossil fuels were considered particularly during … Continue reading →| Climate Etc.
James Hansen’s latest paper “Global warming in the pipeline” (Hansen et al. (2023)) has already been heavily criticized in a lengthy comment by Michael Mann, author of the original IPCC ‘hockey stick’. However Mann does not deal with Hansen’s surprisingly … Continue reading →| Climate Etc.
by Judith Curry Here is the text of the expert report on Mann v. Simberg/Steyn in 2020 that I prepared at the request of Mark Steyn’s counsel.| Climate Etc.
by Javier Vinós Part I of a three part series.| Climate Etc.
By Frank Bosse and Nic Lewis A recent article by Roy Spencer was (strongly) criticized by Gavin Schmidt over at “Real Climate”. In the summary Gavin S. wrote: “Spencer’s shenanigans are designed t…| Climate Etc.
by Judith Curry Update: I will be testifying Mon Feb 5, starting at 9:30 am EST. You can watch the trial on Webex, scroll to room 132. BTW, wordpress ‘ate’ the remainder of the text…| Climate Etc.
by Judith Curry 2023 was a banner year for the publication of interesting climate-related books. Some excellent books for Xmas stockings, providing scientific insights, policy sanity and optimism …| Climate Etc.
by Judith Curry Politically-motivated manufacture of scientific consensus corrupts the scientific process and leads to poor policy decisions An essay with excerpts from my new book Climate Uncertai…| Climate Etc.
Read the Australian Electricity Generation – 2023 Update for detailed insights on the latest trends, shifts, and future outlook in the energy sector.| Climate Etc.
by Judith Curry, Jim Johnstone, Mark Jelinek A deep dive into the causes of the unusual weather/climate during 2023. People are blaming fossil-fueled warming and El Nino, and now the Hunga-Tonga e…| Climate Etc.
Learn how the Disinformation Industrial Complex is destroying trust in science and its impact on public perception and scientific credibility.| Climate Etc.
Renewable Experts remain undeterred by failed ideas, continuing to push boundaries for sustainable energy solutions.| Climate Etc.
Read JC's response to the Senate Budget Committee Hearing on the latest economic insights and policy discussions.| Climate Etc.
Join the Senate Budget Committee Hearing today for crucial discussions and updates on budget proposals and economic policies.| Climate Etc.
Stay informed on the Senate Budget Committee Hearing. Read the latest discussions and updates on budget matters from the hearing on March 19, 2023.| Climate Etc.
Read about the Australian renewable energy transition in Part 3, focusing on key strategies and challenges for a sustainable future.| Climate Etc.
Learn about Climate Uncertainty and Risk, examining impacts, challenges, and solutions in managing climate-related uncertainties.| Climate Etc.
Read Australian Renewables Integration Part 2 for insights on renewable energy challenges and solutions in Australia. Detailed analysis on Judith Curry's blog.| Climate Etc.
Detailed insights into Australian renewables integration: Part 1, exploring energy strategies, challenges, and solutions for a sustainable future.| Climate Etc.
by Judith Curry The loss of glaciers from Glacier National Park is one of the most visible manifestations of climate change in the U.S. Signs were posted all around the park, proclaiming that the glaciers would be gone by 2020. … Continue reading →| Climate Etc.
