Unprecedented Warming?

The Central England Temperature Record Shows Otherwise

The Central England Temperature (CET) record, maintained by the Met Office, is the longest-running continuous temperature record in the world, starting in 1659. It provides an invaluable historical dataset that allows us to analyze long-term temperature trends and variations over centuries. This dataset serves as a critical reference point in the ongoing discourse on climate change and the factors influencing global temperatures.

Initially, measurements were taken from various locations, including Birmingham, Oxford, and London. Over time, the locations have changed slightly, with modern observations coming primarily from rural locations to mitigate urban influences. The current primary stations include Pershore College in Worcestershire and Rothamsted in Hertfordshire. This careful selection helps ensure that the data remains consistent and representative of the broader region.

Early thermometers were less precise, and methods for recording temperatures have evolved. Errors can arise from several sources, including instrument calibration, changes in measurement locations, and observer differences. However, modern techniques have significantly improved the accuracy and reliability of temperature measurements. Regular calibration of instruments and the use of standardized methods help reduce errors. Statistical methods are also applied to adjust for known biases and to homogenize the data across different periods and locations.

The CET record is crucial for understanding natural and anthropogenic climate influences. It provides context for recent temperature changes by showing that significant warming and cooling periods have occurred over the past several centuries. These historical variations highlight the importance of considering natural climate variability when interpreting modern climate trends.

When examining the CET record,