Guest essay by George White Feedback is the most misunderstood topic in climate science and this misunderstanding extends to both sides of the debate. This is disturbing because the theoretical…
Category: feedbacks
Cloud Feedback
Guest Post by Willis Eschenbach In the comments to Christopher Monckton’s latest post, Nick Stokes drew attention to Soden and Held’s analysis of feedback in the climate models. I reproduce their Table…
Soil feedbacks are a big uncertainty in climate change
From the YALE SCHOOL OF FORESTRY & ENVIRONMENTAL STUDIES Managing uncertainty: How soil carbon feedbacks could affect climate change There is more than twice as much carbon in the planet’s…
Claim: Future global warming could be even warmer
From the UNIVERSITY OF COPENHAGEN – NIELS BOHR INSTITUTE and the “worse than we thought” department comes this claim by one researcher looking at the past climate events, specifically the PETM,…
Problems With Analyzing Governed Systems
Guest Post by Willis Eschenbach I’ve been ruminating on the continuing misunderstanding of my position that a governor is fundamentally different from simple feedback. People say things like “A governor…
A reply to Born: How to represent temperature feedbacks in a simple model
By Christopher Monckton of Brenchley, David Legates, Willie Soon and Matt Briggs Mr. Born has had another go at our paper Why models run hot, published in January 2015 (PDF…
Cloud Feedback
Guest essay by Stan Robertson In a recent post entitled “Changes in Total Solar Irradiance” (http://wattsupwiththat.com/2014/10/25/changes-in-total-solar-irradiance/ ), Willis Eschenbach showed a plot of the solar irradiance that impinges at the…
BOMBSHELL: Study shows greenhouse gas induced warming dropped for the past 14 years
Paper finds a decrease of IR radiation from greenhouse gases over past 14 years, contradicts expected increase – cloudiness blamed for difference. A paper published in the Journal of Climate…
New study claims to confirm water vapor as global warming amplifier – but other data says no
Just because something is said to be an amplifier doesn’t mean it actually is doing so, plus other datasets don’t show an increase in water vapor. See below. Also, you…
Uncertainty in the dirt: another climate feedback loop
From the Carnegie Institution Climate change and the soil Climate warming may not drive net losses of soil carbon from tropical forests Washington, DC — The planet’s soil releases about…
Study: irrigation causes 'significant cooling of global average surface temperatures over land'
From the HockeySchtick: A paper published last week in Climate Dynamics finds man-made agricultural irrigation “causes significant cooling of global average surface air temperatures over land and dampens regional warming…
Nature abhors a positive feedback
Negative Feedback Prevents Harmful Temperatures from Carbon Dioxide Guest essay by Bryce Johnson The purpose of the article is to contribute to refuting the false alarm that has been generated…
New paper: man-made aerosols have had a net cooling effect since beginning of industrial revolution
More aerosols, means more clouds, which means cooler temperatures. Now that we are cleaning up aerosols worldwide, this may explain why the Earth is getting slightly warmer – more sunlight…
The 2014/15 El Niño – Part 10 – June 2014 Update – Still Waiting for the Feedbacks
This post provides an update on the progress of the early evolution of the 2014/15 El Niño with data through the end of May 2014. The post is similar in…
Soil microbe GHG feedback 'less dire than previously thought'
From the International Institute for Applied Systems Analysis The tiniest greenhouse gas emitters Climate feedbacks from decomposition by soil microbes are one of the biggest uncertainties facing climate modelers. A…
When will climate feedbacks fully function? Not for millennia
Guest essay by Christopher Monckton of Brencheley The splendidly-titled Alberto Zaragoza Comendador, commenting on my recent posting taking apart Mr. Mann’s latest fantasia in Scientific American, was startled by my…
Observing water vapor feedback during 'the pause'
From AGU highlights, measurements from 2002 to 2009 show short term feedback still subject to short-term climate variability, long term feedback still in the realm of models. Measuring the effect…
Pollen has bigger influences on optical properties of the atmosphere than previously known
From Leibniz-Institut für Troposphärenforschung something that could be a possible negative feedback to CO2. As plants proliferate more due to increased CO2, it follows that pollen load in the atmosphere…
Sea Ice Page Upgrades, Observations and Questions
By WUWT regular “Just The Facts” In making a couple upgrades to the Sea Ice Page, I made a few observations, and a few questions arose. Firstly, several weeks ago…
Forcing or Feedback?
Guest Post by Willis Eschenbach I read a Reviewer’s Comment on one of Richard Lindzen’s papers today, a paper about the tropics from 20°N to 20°S, and I came across…
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