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Friendly reminder that you can still show a trend over the past 2,000 years, even if the past "~20" don't show the same.

This seems like a different dataset than the flagged comment referenced? Does anyone know what they were talking about?

They mentioned "NOAA's USHCN reference network of well sited thermometers"

(I opened a search to go figure out what they mean, but work interceded.)