Optical Antics at Sunset

My lovely and talented wife has a habit of being in the right place at the right time to capture nature doing interesting things. This particular shot was taken by cell phone from a moving vehicle in Northern California last night and shows something I’ve never seen before. Those of you looking for the elusive…

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Cirrus Cloud seeds identified – will help in climate knowledge

From the Massachusetts Institute of Technology , a fairly important discovery, one that will help us understand the role clouds play in the Earth’s energy balance. The fact that mineral dust and metallic aerosols are identified would suggest that as mining, smelting, and industrialization have increased, so would cirrus cloud formation, though it may be…

Contrails and Climate – follow up

Dr. Roger Pielke Senior writes: Ben Herman of the University of Arizona has responded to the post… News Article “Aircraft Condensation Trails Criss-Crossing The Sky May Be Warming The Planet On A Normal Day More Than The Carbon Dioxide Emitted By All Planes Since The Wright Brothers’ First Flight In 1903, A Study Said On Tuesday”…

The planes! The planes!

From Dr. Roger Pielke Senior: (with apologies to Tattoo) There is a news article on March 29 2011 from Rueters titled Aircraft condensation trails criss-crossing the sky may be warming the planet on a normal day more than the carbon dioxide emitted by all planes since the Wright Brothers’ first flight in 1903, a study said…