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Palaeo Proxies

Palaeo Proxies:

The limitations of temperature estimates from before the invention of thermometers, based on “palaeo proxies.”

  • It calls the claims that a specific day was the warmest in over 100,000 years as scientifically unfounded.
  • Palaeo proxies, short for paleoclimate proxies, are indirect pieces of evidence that scientists use to infer past climate conditions.
  • Since instrumental climate records (such as thermometer measurements) are only available for a relatively short period, usually a few hundred years, scientists rely on various natural sources to reconstruct climate conditions over longer timescales.
  • To estimate past temperatures, scientists also use isotopes that undergo steady radioactive decay.
  • The proxies can help in understanding the response of modern humans to climate change.
  • However, such proxies are not suitable for estimating daily temperatures.
  • Climate change is best understood over longer timescales, and making alarmist claims about daily records can jeopardize the credibility of climate action efforts.