What's a reliable way to measure historical temperture?

In summary, some people are questioning the accuracy of historical temperature records and are looking for reliable ways to measure them, as there may be other factors that affect the results. Additionally, it is argued that multiple types of proxy records should be used to verify the accuracy of these measurements.
  • #1
Wax
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I got in a global warming topic and some people are saying that historical temperature records are inaccurate. So I'm wondering if there are any reliable ways to measure historical temperature.
 
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  • #2
The thread could be better on it's place in the Earth science subforum.

Anyway, it's not about what "some people" say, it is what the mechanism is of a certain method is, to judge it's accuracy. The problem with all proxy methods is that it is an inherent affirming the consequent fallacy. For instance: 'if it is warm, the isotope ratio is heavier. The isotope ratio is heavier, hence it was warm'

The problem is that many other factors also affect isotope ratios and one needs more than one type of proxy records to figure out what did it and hence verify it's accuracy. Always.
 
  • #3
Wax said:
I got in a global warming topic and some people are saying that historical temperature records are inaccurate. So I'm wondering if there are any reliable ways to measure historical temperature.

Are you referring to truly "historic" written records (as opposed to pre-historic "proxy" measurements)? If so, I have heard it argued for example, that old (100 years or more) sea temperature records are inaccurate due to the shallow depth of measurement.
 

FAQ: What's a reliable way to measure historical temperture?

1. What is the most commonly used method for measuring historical temperature?

The most commonly used method for measuring historical temperature is through the use of proxy data. This involves analyzing natural indicators, such as tree rings, ice cores, and sediment layers, that can provide information about past temperatures.

2. How accurate are measurements taken from proxy data?

The accuracy of measurements taken from proxy data can vary depending on the location and quality of the data. However, with advancements in technology and analysis techniques, proxy data can provide accurate temperature estimates within a few degrees.

3. Can we use modern temperature measuring techniques to measure historical temperatures?

Yes, modern temperature measuring techniques, such as thermometers and satellites, can also be used to measure historical temperatures. However, these methods are limited to the time period in which they have been in use and may not be able to capture data from centuries or millennia ago.

4. How do scientists account for potential biases in historical temperature measurements?

Scientists account for potential biases in historical temperature measurements by using multiple proxy data sources and cross-checking their findings with other historical evidence, such as written records and artwork. They also conduct rigorous statistical analyses to minimize any potential biases.

5. Is there a consensus among scientists on the reliability of historical temperature measurements?

While there may be minor disagreements among scientists on specific measurements and data interpretations, there is a strong consensus among the scientific community that proxy data is a reliable way to measure historical temperature. This method has been extensively studied and validated, and its results have been consistent with other historical evidence and modern temperature measurements.

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