From the Brookhaven National Laboratory: Yearlong MAGIC Climate Study Launches Climate instruments mounted aboard the Horizon Spirit container ship begin taking data The Horizon Spirit makes the round trip between…
Category: Clouds
Some confirmation of Spencer's cloud hypothesis – it is getting less cloudy and warmer at the same time
A new paper just published in the Journal of Climate finds that global cloudiness has decreased over the past 39 years from between 0.9 to 2.8% by continent as shown…
New paper shows negative cloud feedback associated with SAM
A paper published Friday in the Journal of Geophysical Research (GRL) finds that a known and natural atmospheric oscillation, the Southern Annular Mode or SAM, is correlated with observed increases…
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…
Spencer’s posited 1-2% cloud cover variation found
In a nutshell, with a −1.6%per decade change in cloud cover during 1954–2005, it becomes a climate forcing. While China is not the world, it bears consideration. The Hockey Schtick…
Crowdsourced Climate Complexity – Compiling the WUWT Potential Climatic Variables Reference Page
By WUWT regular “Just The Facts” With the help of an array of WUWT reader comments, which began on this thread on January, 15th 2011, and grew on January 22nd,…
Fogageddon
I suppose if I truly want to take the weekend off, I’ll have to ditch my smartphone. These photos from the Facebook page of the Panhandle Helicopter Service in Panama…
The Ridiculousness Continues – Climate Complexity Compiled
By WUWT regular “Just The Facts” With the help of an array of WUWT reader comments on this thread and several others documented within, I’ve been compiling a summary of…
Nacreous cloud show at the Arctic Circle
From spaceweather.com An apparition of polar stratospheric clouds is underway around the Arctic Circle. “It is almost as good as the aurora borealis,” says Göran Strand, who took this picture…
High level clouds and surface temperature
Guest post by Erl Happ The orbit of the Earth’s around the sun is slightly eccentric. The closest point is called the perihelion. On January 4th the Earth is just…
Cloud cools
Guest post by Erl Happ This post was generated in response to the Christopher Monkton thread. It is not a criticism of Christopher Monkton but of our tendency to imagine…
New peer reviewed paper: clouds have large negative cooling effect on Earth's radiation budget
Oh dear, now we have three peer reviewed papers (Lindzen and Choi, Spencer and Braswell, and now Richard P. Allan) based on observations that show a net negative feedback for…
Prey and predator model of clouds
From the Weizmann Institute of Science – Eat, Prey, Rain Photo: Tamar Deutsch What do a herd of gazelles and a fluffy mass of clouds have in common? A mathematical…
While the Sun's in a funk, no hint of resumed ocean warming
Global SST Update: Still No Sign of Resumed Warming by Roy W. Spencer, Ph. D. Here’s the global average sea surface temperature (SST) update from AMSR-E on NASA’s Aqua satellite,…
World War II bombing raids offer new insight into the effects of aviation on weather
From Wiley-Blackwell via Eurekalert Wartime weather records reveal impact of contrails caused by USAAF raids Climate researchers have turned to the Allied bombing raids of the Second World War for…
Contrails – itty bitty icy forcing
From the American Geophysical Union weekly highlights: Estimating climate effects of contrails Condensation trails, or so-called contrails, formed by freezing of ice crystals in the exhaust from aircraft jet engines…
Uncertain Climate Risks (Nature Climate Change)
Guest Post by Ira Glickstein As I continue to plow through Vol 1 Issue 1 of the new Journal Nature Climate Change, I came to the following amazing statement: Communicating…
Clouds, radiative forcing, and climate models – still tweaking
As most readers know, clouds are still poorly understood and under-represented in climate models. This new research may help. From: DOE/Pacific Northwest National Laboratory Effect of cloud-scattered sunlight on earth’s…
Global Warming is a Pussy Cat
Guest post by Ira Glickstein Thanks to WUWT readers who posted estimates of how much of the supposed 0.8ºC Global Warming since 1880 was due to Data Bias, Natural Cycles,…
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