New Study: Systematic Error in 1880-2020 Global Temperature Measurements Inflates Warming by 42%
12th October 2024
According to a new study, weather station data has been shown to non-climatically and erroneously record warmer-than-actual temperatures due to the steady and perpetual aging process almost universally observed in temperature gauges.
When a weather station temperature gauge’s white paint or white plastic ages and darkens, this allows more solar radiation to be absorbed by the gauge than when the gauge is bright white and new. Within a span of just 2 to 5 years, a gauge has been observed to record maximum temperatures 0.46°C to 0.49°C warmer than in gauges that have not undergone an aging process. This artificial warming is not corrected in modern data sets, and it builds up over time – even when the gauges are cleaned or resurfaced every few years.
If these systematic artificial warming errors were to be corrected rather than ignored, the 140-year (1880-’90 to 2010-’20) GISTEMP global warming trend plummets from the current estimate of +1.43°C down to +0.83°C, a 42% differential. The temperature reduction can be even more pronounced – from +1.43°C down to +0.41°C – if a set of conservative assumptions (described in detail in the paper) are removed.