Carbon soot may be driving the expansion of the tropics – not CO2

From the University of California – Riverside it seems that black carbon soot is driving tropical expansion. How could this be? I thought CO2 was all powerful, so powerful with…

Tracking the ash from the 'unpronounceable' volcano

From the FECYT – Spanish Foundation for Science and Technology Scientists ‘read’ the ash from the Icelandic volcano 2 years after its eruption In May 2010, the ash cloud from…

Drats! Down the warmhole the warming went

From the Harvard School of Engineering and Applied Sciences “Warming hole” delayed climate change over eastern United States April 26, 2012 50-year model suggests regional pollution obscured a global trend…

Trigger for Little Ice Age – a half century of volcanism?

Dr. Roger Pielke Sr. writes on his blog today: Every once in a while. a nugget of new research insight appears that adds to our understanding of the climate system,…

Pat Michaels – on the death of credibility in the journal Nature

Atmospheric Aerosols and the Death of Nature Guest post by Dr. Patrick Michaels Big news last week was that new findings published in Nature magazine showed that human emissions of…

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…

Ramanathan and Almost-Black Carbon

Guest Post by Willis Eschenbach My thanks to Nick Stokes and Joel Shore. In the comments to my post on the effects of atmospheric black carbon, Extremely Black Carbon, they…

Dust deposition linked to glacier melt

From the University of Miami Rosenstiel School of Marine & Atmospheric Science and the Department of “The Albedo made me do it” comes further proof of what we have been…

Polar bears and sulfates

From the University of Washington  some apparent confusion about what sulfates look like. Injecting sulfate particles into stratosphere won’t fully offset climate change IMAGE:A polar bear walks along an expanse…

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…

The "cool" particle

Two press release on this this week, both below From the University of Manchester Researchers discover particle which could ‘cool the planet’ In a breakthrough paper published in Science, researchers…

Study: Getting the S out of jet fuel may cool the climate

This study from Yale University  seems contradictory to what we know about aerosols. Generally more aerosols like SO2 cool the climate, but in this case they are saying “it’s offset…

Linked: aerosol pollutants and rainfall patterns

From the University of Maryland Rising air pollution worsens drought, flooding, UMD-led study shows COLLEGE PARK, Md. – Increases in air pollution and other particulate matter in the atmosphere can…

Climate scientists and their excuses

Candid Comments From Climate Scientists By Dr. Roger Pielke Sr. There is  a news release by Paul Voosen on Greenwire titled Provoked scientists try to explain lag in global warming (Tuesday, October…

Dust up in climate modeling

From the Georgia Institute of Technology Research News Insoluble dust particles can form cloud droplets affecting global and regional climates Cloud formation New information on the role of insoluble dust…

The weekday -vs- weekend weather effect

Hailstorms and tornadoes are more common during the weekday due to human created aerosols. By Dr. Roger Pielke Sr. New Paper “Why Do Tornados And Hail Storms Rest On Weekends”…

Pat Michaels on aerosols, China coal, and lack of recent warming

The Current Wisdom: The Lack of Recent Warming and the State of Peer Review by Patrick J. Michaels Boston University’s Robert Kaufmann and colleagues recently published a paper in the…

Aerosol sat observations and climate models differ "by a factor of three to six"

From the University of Michigan something I think Dr. Roy Spencer will be interested in as it is yet another case where models and satellite observations differ significantly. See the…

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…

New NASA paper contradicts Kaufmann et al saying it's volcanoes, not China coal

It seems that there’s a paper (from JeanPaul Vernier at NASA) out that contradicts the findings of Kaufmann et al 2011, where they blame China’s increasing coal consumption for lack…