Indirect Solar Forcing of Climate by Galactic Cosmic Rays: An Observational Estimate

By Dr. Roy Spencer, PhD (reprinted from his blog with permission) UPDATE (12:35 p.m. CDT 19 May 2011): revised corrections of CERES data for El Nino/La Nina effects. While I…

New study links cosmic rays to aerosols/cloud formation via solar magnetic activity modulation

From an Aarhus University press release: Scientists at Aarhus University (AU) and the National Space Institute (DTU Space) show that particles from space create cloud cover New input to the…

"People underestimate the power of models. Observational evidence is not very useful."

Guest post by Alec Rawls Andrew Orlowski at the UK Register has an anecdotal account of Downing College’s skeptics-vs-believers mash-up. Ace of Spades pulled the juiciest bit: In short, the…

Update on the CERN CLOUD experiment

WUWT reader Max_B tips us off to this article and video. According to Nigel Calder’s Blog, CERN’s CLOUD experiment (testing Svensmarks’s cosmic-ray theory) shows a large enhancement of aerosol production…

Courtillot on the solar UV climate connection

From the HockeySchtick Video: Geophysicist explains how the Sun controls climate, not CO2 Dr. Vincent Courtillot is a professor of geophysics at the University Paris-Diderot and Chair of paleomagnetism and geodynamics of…

Normal Seasons of the Sun (GW Tiger)

Guest post by Ira Glickstein PhD. We had joy, we had fun, we had Seasons of the Sun. But the mountains we climbed were but whimsies of our minds. That…