By Joseph D’Aleo, CCM
We have shown that using the USHCN climate data for the 1221 climate stations, there has been little (0.21F) in the way of net warming since the last cyclical peak in 1930.
See larger image here
CO2 Science has been doing a weekly plot of these climate stations showing the cyclical nature of the changes and the lack of warming in most stations. This week the station is Hillsboro, Ohio which actually has shown a cooling of 0.30F over the period.
See larger image here
Anthony Watts at surfacestations.org has found poor or very poor siting of the majority of these climate stations (69% at last count) with locations over concrete, volcanic cinders, paved roads or parking lots, location near buildings or air conditioner exhausts, each leading to a warm bias. Thus there is little reason to believe that there has been any real net warming since 1930. Hillsboro is not yet surveyed or rated.