I see!! So your claims are based on Professional and Amateur Meteorologist allegedly located ALL around the world in the 1800s with instruments to record the global temps to within 1/2 degree Celsius based on Ice water and the boiling point?
First I find it hard to accept that sufficient numbers of locations sampled to make the "Global" clam in the 1800s or even late 1800s. Second, I'd like to know just how and where they got ICE in say... Havana Cuba, or Cartagena Colombia, what's the source of Ice in Mumbai, Cairo, Casablanca, Manila, Fiji, New Caledonia, Mexico City, Rio de Janerio, Singapore, or Sydney just to name a few major locations around the world, without ice makers or electricity in the late 1800s. As for the boiling point, that depends on where and when you're doing the boiling. In Denver, the boiling point is ~ 95 C. of course the boiling point is the temperature at which the vapor pressure of the liquid is equal to the pressure exerted on the liquid by the surrounding atmosphere. (you might try Google on that..) Each 500 foot increase in altitude causes a drop of ~ 1 degree in the boiling point. The Barometric pressure can change, even at sea level. The Standard Boiling Point has been defined by IUPAC (International Union of Pure and Applied Chemistry) since 1982 as the temperature at which boiling occurs under a pressure of 1 bar. (google that...) Therefore the boiling point can fluctuate. I agree that using Ice water (when available) and the boiling point to calibrate ones instruments is a good method to come close. However a few dozen, or a few hundred, or maybe even a few thousand people scattered around the globe in 1890, recording the temps with that technique of calibration so that present day AGW Chicken Little's can declare their possible end of the world (as we know it) oratory, based on an increase of 11 one thousandth of 1% in CO2, and with the alleged precision to declare an increase of 1/2 degree as the result, with undeniable certainty and representation to proclaim it as the "Global" condition. Well......
You call it denial!!!
I call it a healthy dose of skepticism. It's what thinking people do.
The source of the Nile discovered Aug. 1858
The United States Supreme Court legally declares the tomato to be a vegetable 1893
Mount Saint Elias, the second highest peak in the United States and Canada, is first ascended. 1897