Climate Etc. closed in June 2026 and this site is preserved as a read-only archive. This feed will not update again -- visit the homepage for where to find Judith Curry's ongoing writing.

by Nicola Scafetta My new book is now published: The Frontier of Climate Science: Solar Variability, Natural Cycles and Model Uncertainty For more than twenty years, my research has explored the interplay...

by Ross McKitrick Last year I had the privilege of working with a small team (me, Judy Curry, John Christy, Steve Koonin and Roy Spencer) on a draft report for U.S. Energy Secretary Chris Wright on...

by Chris Morris People have queried what is happening in Australia with their push for a decarbonised all renewables/ Net Zero grid since the last update in 2023...

by Joe Nalven Towards improving AI architecture with a new paradigm Several years ago, I asked Bard (Google’s predecessor to Gemini) to craft an algorithm that would shift its climate change...

by Javier Vinos We have been fortunate to witness the largest climate event to occur on the planet since the advent of global satellite records, and possibly the largest event since the eruption of...

by Mila Zinkova Reassessing The Coldest March by Susan Solomon On Thursday, 29 March 1912, Captain Scott (1914) made the final entry in his Journal. He wrote:  Since the 21st we have had a continuous...

by John Ridgway In an earlier essay [1] I explained how positive feedbacks can lead to potentially problematic scientific mono-cultures. I also acknowledged that poor research design and data analysis...

by John Ridgway Any politician faced with the challenge of protecting the public from a natural threat, such as a pandemic or climate change, will be keen to stress how much they are ‘following...

by Judith Curry A month has passed since the DOE climate assessment report was published.  It’s time to reflect on what we might learn from the responses to this Report.  Of particular relevance...

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...

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...

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 ...

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...

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...

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...

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...

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...

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...

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...