Here's the article from which Watts mangled his weird meaningless headline.
(Has anyone else noticed that Watts' blog has gone from very bad to very very bad quality lately? Seems to have got stuck somewhere between boring, irrelevant and painfully wrongheaded.)
Addendum: Anthony now seems to be saying that the record heat extremes in the USA recently were either or both UHI effect and new weather stations. (As if one foot in mouth wasn't enough.)
Addendum 2: Below is a chart of USA temperature records from the EPA (data from NOAA), including surface and satellite records.
Anthony's rabble cry "what about the 1930s"? Indeed, the chart shows quite a difference between this century and the 1930s. (I'll spell it out for people who can't read charts. There are a lot more hot years since the mid 1980s in the USA. In the 1930s the hot years were more rare and were interspersed with cooler years.)
Getting tied up in knots over UHIAnthony is saying the records since the 1950s are wrong because of UHI and new thermometers. He has to be complaining about the satellite 'thermometers' as well, since going by the chart below, the satellite records support the surface measurements. A couple of 'lukewarmers' did an analysis demonstrating that the UHI effect is already factored into the adjusted temperature records. (Needless to say, Anthony poo poos anything that contradicts his spin.)
Oh Watt a tangled web we weave...In among the comments, Anthony also said you can't count last summer, so I guess he thinks that UHI and new thermometers weren't causing last summer's heat. Why the difference? He hasn't explained why he thinks new thermometers and UHI would distort temperature records post 1950s except those from last year.
Wonder if Anthony is deliberately lying or is he just stupid? No, I don't really wonder that. The fact that he didn't put up a temperature chart to support his silliness suggest deceitful intentions.
PS Anthony's in-line comments are getting to the ludicrous stage. According to Tony, 90% of new thermometers in the USA are put near 'heat sinks and sources' and can't measure cooler temperatures even relative to themselves ("you don't understand physics, that's not how heat sinks work", he says). They just keep getting hotter and hotter presumably till they blow!