I never thought I would participate in a serious debate on the definition of “temperature.” But it happened on twitter, and with people who have degrees in physics and other…
Category: Atmospheric physics
SURFRAD data and surface heat transport
There is great disagreement and discussion about how heat once planted on the Earth’s surface redistributes itself and makes its way back to space. Not that it makes much difference…
Modeling the Troposphere
It has always been a bit of a mystery why the IPCC CMIP models reproduce the tropospheric temperature profile so poorly, here we try and explain the problem.
Henrik Svensmark Fired by his University
Danish scientist Henrik Svensmark, known for his controversial research on cosmic rays and cloud formation, has been dismissed by his university in Copenhagen after years of internal conflict. In an…
How does radiation work?
I’d say there is no one who writes comments in threads at WUWT who doesn’t believe that radiation provides the beginning and end points of Earth’s climate.
Closer to the Fire – Increasing Tropical Sunlight
The purpose of this analysis is to examine whether changes in tropical solar exposure are consistent with observed changes in atmospheric moisture and heat redistribution.
Testing the Dew-Point Anchor Hypothesis
By Andy May and Philip Mulholland Earlier this year Philip Mulholland published the details of his Dew-Point Anchor Hypothesis or “DPAH” (Mulholland P. , 2026a). The hypothesis assumes that the…
The Moist-Adiabatic Theory vs. Reality
Climate models rely very heavily on moist adiabatic assumptions, which contributes to the persistent model-observation mismatch in the tropics, why?
More Sun, Less Sun
Guest Post by Willis Eschenbach (@WEschenbach on X, my personal blog is here.) Well, I had some further insights and questions about the issue of sunshine hours that I discussed…
Pressure Causes Temperature? It’s Time to Climb Down from “Mount Stupid”
There was a recent weeks-long exchange of emails between many climate people — professional and amateur — regarding the idea that air pressure (in combination with absorbed solar energy) is…
Study posits how carbon dioxide cools the upper atmosphere, and warms earth below
Researchers have supposedly solved a long-standing atmospheric puzzle: How rising carbon dioxide cools the stratosphere even as it warms Earth’s surface and lower atmosphere.
Another Study Links Warming to Cloud Forcing, Shortwave Radiation, Natural Atmospheric Circulation
Natural atmospheric circulation patterns (like the Western Tibetan Vortex, or WTV) drive total cloud cover (TCC) change, which, in turn modulate the the amount of downward solar radiation reaching the…
Changing Sunlight, Weather & Climate
…changes in solar intensity across latitudes and seasons are argued here to be a primary driver of the observed patterns and a useful guide for anticipating future regional trends. Broadly,…
At The Heartland Climate Conference: “What Is The Proof?”, Earth’s Energy Imbalance Edition
With regard to EEI, the answer to the question “What Is The Proof?” is that there is no proof.
Proposed Theory of Historical Global Cloud Cover.
This expansion of the CRGW theory is intended to be a possible tool in the investigation of historical climate change to explore what did cloud fraction do as the…
New Research Reaffirms Clouds, Aerosols, And Surface Solar Radiation Are ‘Driving The Climate System’
A 4 W/m² per decade increase in SSR easily explains recent warming. It especially explains warming far better than the alleged 20-times smaller clear-sky-only CO2 impact (0.2 W/m² per decade)…
Changing Sunlight, Weather & Climate
Accumulation of ice at altitude in high latitudes is an early indicator for the eventual ice accumulation down slope and at lower latitudes. Greenland’s largest and most productive glacier, Jacobshavn,…
The Story behind my Paper on the ITCZ and the Hadley Circulation
By Andy May It all began eight years ago when I read and reviewed Ronan and Michael Connolly’s first three papers on their ideas about the “molar density intersection” which…
Slicing the earth to study Cloud Fraction and VPD.
Slicing the earth’s data has revealed expected correlation of sun angle to cloud fraction, VPD, and Enthalpy and interesting correlation to land fraction. The land fraction seems to be related…
From the Surface to Space
Advection not only moves heat over the Earth’s surface to where it can travel more easily from surface to space, but the very dry air in the counterflow of cA…
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