A pertinent climate question

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?

Aerosol formation in clouds

“Our experimental setup allows us for the first time to precisely investigate the distribution of organic vapours at the air-water interface under near-environmental conditions,” says Houssni Lamkaddam, a researcher in…

Study: Global Warming Heating Nights Faster than Days

And both increased and decreased cloud cover is bad.

Increased warming in latest generation of climate models likely caused by clouds

As scientists work to determine why some of the latest climate models suggest the future could be warmer than previously thought, a new study indicates the reason is likely related…

Noctilucent Clouds Over London

On June 21st, something rare and magical happened in London. The skies of the great city filled with noctilucent clouds (NLCs). Phil Halper noticed the display, grabbed a camera, and…

Record Cold Upper Mesospheric Temperatures Suggest Another Good Noctilucent Cloud Viewing Season

From Dr Roy Spencer’s Blog May 31st, 2020 by Roy W. Spencer, Ph. D. Noctilucent clouds (NLCs) are often visible in the extreme upper atmosphere (80-85 km altitude) well after…

Ships’ emissions create measurable regional change in clouds

A container ship leaves a trail of white clouds in its wake that can linger in the air for hours. This puffy line is not just exhaust from the engine,…

First-time direct proof of chemical reactions in particulates

Paul Scherrer Institute Researchers at the Paul Scherrer Institute PSI have developed a new method to analyse particulate matter more precisely than ever before. With its help, they disproved an…

One Upside of More CO2: Beautiful Upper Atmospheric Clouds

Reposted from Dr. Roy Spencer’s Blog January 1st, 2020 by Roy W. Spencer, Ph. D. Polar Stratospheric Cloud display (smartphone photo posted by Reddit user Breuuan on Dec. 31, 2019.)…

Ice Nucleating Particles Carried From Below a Phytoplankton Bloom to the Arctic Atmosphere

Paper at Geophysical Research Letters. J. M. Creamean J. N. Cross R. Pickart L. McRaven P. Lin A. Pacini R. Hanlon D. G. Schmale J. Ceniceros T. Aydell N. Colombi…

Winter monsoons became stronger during geomagnetic reversal

Revealing the impact of cosmic rays on the Earth’s climate Kobe University New evidence suggests that high-energy particles from space known as galactic cosmic rays affect the Earth’s climate by…

Electric-blue night clouds are invading the U.S.

Reposted from Dr. Roy Spencer’s Blog I have personally cussed out Dr. Spencer for adding an item to my bucket list which had been almost complete.~ctm June 11th, 2019 by…

We now know how insects and bacteria control ice

Proteins help organisms form or inhibit ice crystals University of Utah Contrary to what you may have been taught, water doesn’t always freeze to ice at 32 degrees F (zero…

Experts reveal that clouds have moderated warming triggered by climate change

A new study has revealed how clouds are modifying the warming created by human-caused climate change in some parts of the world Swansea University A new study has revealed how…

No, Increasing CO2 isn’t going to trigger a hot world without clouds.

From Dr. Roy Spencer’s blog, March 1st, 2019 by Roy W. Spencer, Ph. D. I’ve received many more requests about the new disappearing-clouds study than the “gold standard proof of…

A new view: Observing Clouds in Four Dimensions

Six cameras are revolutionizing observations of shallow cumulus clouds. The Science While easily seen by people, the cotton-ball clouds (called shallow cumulus clouds) that drift overhead on partly cloudy days…

Data: Global Temperatures Rose As Cloud Cover Fell In the 1980s and 90s

Climatologist Dr. Roy Spencer has pointed out in his book,  “The most obvious way for warming to be caused naturally is for small, natural fluctuations in the circulation patterns of the…

An interview with Henrik Svensmark: cosmic rays, clouds and climate

Prof Henrik Svensmark & Jacob Svensmark discuss the connection between cosmic rays, clouds and climate with the GWPF’s Benny Peiser and Jonny Bairstow from Energy Live News after his recent…

CERES Edition 4 and the Cloud Radiative Effect

Guest Post by Willis Eschenbach One of the enduring questions in climate involves what is usually called “cloud feedback”. When the earth warms up a bit, the clouds change in…

Study: Climate models underestimate cooling effect of daily cloud cycle

From PRINCETON UNIVERSITY: Princeton University researchers have found that the climate models scientists use to project future conditions on our planet underestimate the cooling effect that clouds have on a daily…

NASA detects strange electric-blue clouds over Antarctica

NASA’s AIM spacecraft is monitoring a vast ring of electric-blue clouds circling high above Antarctica. These are noctilucent clouds (NLCs), made of ice crystals frosting specks of “meteor smoke” in the…

Baby It’s Cold Outside – evidence of solar cycle affecting Earth’s cloud cover

Guest essay by David Archibald News comes that the light reflected back from Uranus is affected by the solar cycle. “The atmosphere around Uranus is one of the coldest in the solar…

The Rainmakers

Guest Post by Willis Eschenbach For more than a decade now I’ve been saying something without getting much agreement, which was: “When you cut down the trees, you cut down…

Estimating Cloud Feedback Using CERES Data

.Guest Post by Willis Eschenbach As usual, Dr. Judith Curry’s Week In Review – Science Edition contains interesting studies. I took a look at one entitled “Cloud feedback mechanisms and…