by Javier Vinós
Part I of a three part series.
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 have implications across the continent.” [link]
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by Javier Vinós
The unlikely volcano, the warmest year, and the collapse of the polar vortex.
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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.
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By Planning Engineer Russ Schussler
“Renewable good, non-renewable bad” is far too simplistic and unfortunately influential
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By Planning Engineer (Russ Schussler)
“Renewables”: some resources support a healthy grid, other challenge it
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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 administration.
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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.
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by Russell Schussler (Planning Engineer)
Part I: Renewable energy as a grouping lacks coherence
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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 to mislead readers about the likely sources of any discrepancies and to imply that climate modelers are uninterested in such comparisons – and he is wrong on both counts.”
Let’s have a detailed and objective look if the wording “…to mislead the readers” is sound.
Continue readingby 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 for this post.
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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.
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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 papers on flaws in standard fingerprinting methods: blog posts on the first two are here and here.
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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 for the 21st century.
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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 authored numerous posts at Climate Etc. and is also author of the book Doubt and Certainty in Climate Science.
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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 creating a two-tier global energy system, with energy abundance for the rich and tiny solar lamps for Africans.” – Kenyan activist and materials scientist Rose Mutiso
“To deny the developing world access to the very infrastructure that has propelled us forward, all in the name of an uncertain future, is not environmentalism, but neocolonialism masquerading as virtue.” – Earth Scientist Matthew Wielicki
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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 Uncertainty and Risk.
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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 energy crises, but these concerns died out quickly as discoveries of new fossil fuel reserves such as the shale revolution in the US that appeared to secure energy supplies.
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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 high (4.8°C) new estimate of equilibrium climate sensitivity (ECS)[1]. This ECS estimate is 60% above Hansen’s longstanding[2] previous estimate of 3°C. It is Hansen’s new, very high ECS estimate drives, in conjunction with various questionable subsidiary assumptions, his paper’s dire predictions of high global warming and its more extreme concluding policy recommendations, such as ‘solar radiation management’ geoengineering.
by Javier Vinos
This post features a chapter from my new book Solving the Climate Puzzle: The Sun’s Surprising Role. The book provides a large body of evidence supporting that changes in the poleward transport of heat are one of the main ways in which the planet’s climate changes naturally. It also shows that changes in solar activity affect this transport, restoring the Sun as a major cause of global warming. Since climate models do not properly represent heat transport and the IPCC reports completely neglect this process, this new hypothesis will not be easily dismissed. I am sure that over time it will lead to a better understanding of how the climate changes naturally, and hopefully less climate hysteria.
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by Iain Aitken
As explained in my new eBook, Climate Change: A Curious Crisis, the climate change ‘debate’ has long-since become a Manichaean, deeply polarized, ‘you are either with us or against us’ war of words in which both sides accuse the other of being closed-minded and refusing to accept the ‘facts’.
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by Greg Goodman
With over a decade and a half since the IPCC AR4, it is instructive to see how the “run away melting” of Arctic sea ice is progressing.
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