Manipulated data (kind of important in fact checking) is a scientific discipline unto itself. There is no question that the surface temperature data has been manipulated (the process is called homogenization and is not applied in a standard fashion). The NOAA weather station data is easily accessible online and the data manipulation is readily visible. An extreme example would be the Darwin airport in Australia. The measured temperatures have trended down since 1880 and the "homogenized” temperatures are trending up. Convenient for the CAGW alarmist crowd. There are justifiable reasons for homogenizing (time of day difference, station location (urban versus rural) and relocation, etc.). The most accurate and extensive weather station distribution in the world is in the United States. To evaluate temperatures without the Urban Heat Island Effect (UHIE), NOAA established a network of 137 high quality weather stations in completely rural "stable” settings. The temperature data can be viewed on NOAA’s website at their Climate Reference Network page.

Interestingly, the February 2021 Temperature Anomaly (-2.40 ºC) is the lowest "ever” recorded in the USCRN data. That is also a drop of (5.77 ºC) since the 2017 February Temperature Anomaly high (3.37 ºC). If I left these statements as is, I could be accused of cherry picking the data (per the CAGW alarmist technique (i.e.: can anyone remember a "HOTTEST YEAR ever recorded” lately). The earth has been significantly warmer (for most of the earth’s history) than the Modern Temperature Record (MTR, 1850 to the present) and significantly colder. The USCRN was only initiated in January 2005. As a result, the data is somewhat limited. But on a qualitative basis, the lowest Temperature Anomaly "ever” and a Temperature Anomaly drop of 5.77 ºC over the last 4 years is not good for the CAGW alarmist narrative. After all, we live in an era where CO2 is virtually the only climate driver (at least according to the IPCC computer programmers and their virtual reality, OPS-22 – Computer Models – Real Simple). In the real world, CO2 has been increasing steadily but the temperature has fluctuated significantly.

Chester McAteer adds this:

https://notrickszone.com/wp-content/uploads/2021/04/Australia-6-Stations1880to2020NASAV4.gif

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