Bullshit! YOU have no links if you did you'd post them when you said your unsubstantiated opinion! As far as "weaseling"... you have done it right now with the links I provided! So bullshit. Give me FACTS not guesses on your part. And I defy you to read a Mercury thermometer such as was used for decades to a .2ºF accuracy! YOU can't. The scale on them was 2º increments. And you're telling me standing in -30º or 100+º you could distinguish .2º? Right there you immediately set yourself up as a bullshitter! Finally argue with this LINK ok? The Metrology of Thermometers This post is actually about the poor quality and processing of historical climatic temperature records rather than metrology. My main points are that in climatology many important factors that are accounted for in other areas of science and engineering are completely ignored by many scientists: Human Errors in accuracy and resolution of historical data are ignored Mechanical thermometer resolution is ignored Electronic gauge calibration is ignored Mechanical and Electronic temperature gauge accuracy is ignored Hysteresis in modern data acquisition is ignored Conversion from Degrees F to Degrees C introduces false resolution into data. Metrology is the science of measurement, embracing both experimental and theoretical determinations at any level of uncertainty in any field of science and technology. Believe it or not, the metrology of temperature measurement is complex.