Aging weather stations contribute to high temperature records

New paper finds that aging weather stations record much higher daytime temperatures, 1.63°C higher than new stations While we are all watching the heat wave developing in the US southwest, here is something to consider. Albedo on the surfaces of weather station shelters changes with time, something I and the volunteers have documented with the…

How not to measure temperature, part 93: the hottest weather station in the UK cited by the BBC has some interesting exposure

Over at Tallbloke’s Talkshop, moderator Tim Channon wondered about this regularly hot station reported in the news: An often appearing name in the BBC news as the hottest place in the country is Gravesend but the true location of the Met Office thermometer is a mystery. By chance I followed up today and discovered a…

New paper blames about half of global warming on weather station data homogenization

From the told ya so department, comes this recently presented paper at the European Geosciences Union meeting. Authors Steirou and Koutsoyiannis, after taking homogenization errors into account find global warming over the past century was only about one-half [0.42°C] of that claimed by the IPCC [0.7-0.8°C]. Here’s the part I really like:  of 67% of…