An open letter to politifact.com

Guest essay by Andy May This is an open letter to Lauren Carroll regarding her Politifact.com article on December 17, 2014. I have sent a very similar letter to her…

NASA's new Orbiting Carbon Observatory shows potential tectonically-induced CO2 input from the ocean?

Guest essay by Martin Hovland, Geophysiscist and Professor Emeritus, Center for Geobiology, University of Bergen, Norway The newly released satellite OCO2-data indicates that there is CO2 input in tectonically active…

Questing Into The New Year

Guest Post by Willis Eschenbach It’s a cold clear night here along the north Pacific coast where I live, with a waxing moon surveying the scene. As befits New Years…

IUCN Polar Bear Specialist Group out-lived its usefulness 20 years ago

The IUCN Polar Bear Specialist Group (PBSG) should have been disbanded in 1996, the year polar bears were down-graded from a status of ‘vulnerable to extinction’ to ‘lower risk –…

Has NOAA Once Again Tried to Adjust Data to Match Climate Models?

Guest Post by Bob Tisdale The topic of discussion is their new sea surface temperature dataset, ERSST.v4.  Based on a breakpoint analysis recently promoted by RealClimate, NOAA appears to have…