Did I miss something? Wasn't there a medieval-ish warm period where Vikings farmed greenland and grapes grew in England? Wouldn't that have been a hotter global temperature?
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According to Jørgen Peder Steffensen, of Denmark’s Niels Bohr Institute, warming of the planet Earth is a good thing. Experiments with ice from the Viking age around the year one thousand, also called the medieval warm period shows in Greenland the Medieval Warm Period was about one and a half degrees warmer on average than today: https://rclutz.com/2023/05/05/1875-was-coldest-in-10000-years-warming-a-good-thing/
1875 was coldest in 10,000 years. And that matches exactly the time when meteorological observations started. Undisputed temperature reconstructions from around the world show the planet was much warmer over most of the Holocene (past 10,000 years) than it is today: https://archive.ph/gKfao
Thanks! Perfect info. Will share :)