USCRN vs NOAA August 2012 | sunshine hours

Ignoring area weighting, the NOAA temperature averaged 0.83F warmer than USCRN.

The Reference Frame: Climate sensitivities in various papers

Anthony Watts discusses a new paper by M.W. Asten in Climate of the Past that estimates the sensitivity – warming induced by a doubling of CO2 in the atmosphere – as 1.1 ± 0.4 °C from oxygen-18 in microfossils.

The paper also contains a fun list of values of climate sensitivity estimated in various papers published between 2004 and 2012.

Western Hudson Bay polar bears are not like the others – Part 2 | polarbearscience

in 2004 there were almost twice as many polar bears in western Hudson Bay than there had been 23 years before.