by Judith Curry
A few things that caught my eye these past few weeks.
by Geoffrey Weiss and Claude Roessiger
The so-called debate about the causes and effects of anthropogenic global warming (AGW) is a notable irony. Rather than a forum for free disputation, AGW has in recent years become the site of a consensus equating majority opinion with truth—leaving little, if any, room for debate. After all, doesn’t everyone but a misguided few agree that we are in the grip of an unparalleled, man- made climatic catastrophe?
Posted in Consensus, Uncategorized
by Thomas Anderl
Simple models are formulated to identify the essentials of the natural climate variabilities, concentrating on the readily observable and simplest description. The results will be presented in a series of five articles. This first part shows an attempt to determine the climate role of CO2 from the past. Observations on 400 Mio. years of paleoclimate are found to well constrain the compound universal climate role of CO2, represented by a simple formula.
Posted in Uncategorized
by Judith Curry
The concerning saga of the creation, enforcement and collapse of a ‘consensus’ on Covid-19 origins.
Posted in Uncategorized
by Judith Curry
Stop using the worst-case scenario for climate change — more realistic scenarios make for better policy.
Posted in Uncategorized
by S. Stanley Young and Warren Kindzierski
Climate Etc. recently carried several insightful posts about How we fool ourselves. One of the posts – Part II: Scientific consensus building – was right on the money given our experience! The post pointed out that… ‘researcher degrees of freedom’… allows for researchers to extract statistical significance or other meaningful information out of almost any data set. Along similar lines, we offer some thoughts on how others try to fool us using statistics (aka how to lie with statistics); others being epidemiologists and government bureaucrats.
Posted in Uncategorized
by Alan Longhurst
“Never before in 1000 years the Atlantic Meridional Overturning Circulation (AMOC), also known as the Gulf Stream System, has been as weak as in the last decades“.
Posted in Uncategorized
by Judith Curry
Reviews of new books by Steve Koonin, Matthew Kahn and Marc Morano.
Posted in Uncategorized
by Judith Curry
The damaging effects of generating eco-anxiety in children. Climate Etc. as an antidote.
Posted in Communication, Uncategorized
by Judith Curry
. . . according to the cover story of April 26 issue of Time Magazine. How have we have fooled ourselves into thinking that manmade climate change is the dominant cause of societal problems?
Posted in Policy, Uncategorized
by Pamela Lindsay
Mentorships by professors of students are among the vital functions of a university. Here I expose the vulnerable underbelly of mentorship and one possible threat to academic freedom and scholarship.
Posted in Sociology of science
by Judith Curry
“Is the road to scientific hell paved with good intentions?” – political psychologist Philip Tetlock (1994)
Posted in Uncategorized
by Judith Curry
“Like a magnetic field that pulls iron filings into alignment, a powerful cultural belief is aligning multiple sources of scientific bias in the same direction. – policy scientist Daniel Sarewitz
Posted in Uncategorized
Environmental justice organizations are currently a major driver of environmental regulation in New York. A new report “The Fossil Fuel End Game, A frontline vision to retire New York City’s peaker plants by 2030” illustrates the campaign strategy they are using to shut down peaking power plants in New York City. Unfortunately their claims are based more on emotion than fact.
Posted in Uncategorized
by Michel de Rougemont
Not so innocent as it looks, a pertinent question is asked by Judith Curry on Twitter:
How much of a change in cloudiness would it take to account for the 0.53 W/m2 increase in TOA radiative forcing since 2003?
https://twitter.com/curryja/status/1375144537522204672
Posted in Sensitivity & feedbacks
by Judith Curry
I have been contacted by a UK politician about climate policy in the UK,
Posted in Policy, Politics, Uncategorized
by Judith Curry
Best practices in adapting to sea level rise use a framework suitable for decision making under deep uncertainty.
Posted in Adaptation, Oceans, Uncertainty
by Judith Curry
How did the state of New Jersey come to adopt sea level rise projections for their adaptation planning that are more than twice as high as the IPCC’s values?
Posted in Adaptation, Uncertainty
by Judith Curry
New Jersey has a sea level rise problem. How should this be managed?
Posted in Adaptation, Oceans
by Judith Curry
Conclusion from Michael Mann’s new paper: “We conclude that there is no compelling evidence for internal multidecadal oscillations in the climate system.”
By Nic Lewis
An important paper, Wang et al.[1], on the relationships between cloud feedback, climate sensitivity (ECS) and aerosol-cloud interaction in the latest generation of global climate models (CMIP6) has just been published. The key conclusion of the paper is:
The seeming consistency of global-mean temperature evolution between more positive cloud feedback (high ECS) models and observations requires a strong aerosol indirect cooling effect that leads to an interhemispheric temperature evolution that is inconsistent with observations.
Posted in climate models, Sensitivity & feedbacks
Posted in Policy, Sociology of science, Uncertainty