Interesting. Now let’s see how this gets integrated into the narrative:
A team of scientists led by geochemist Zunli Lu from Syracuse University in New York state, has found that contrary to the ‘consensus’, the ‘Medieval Warm Period’ approximately 500 to 1,000 years ago wasn’t just confined to Europe.
In fact, it extended all the way down to Antarctica – which means that the Earth has already experience global warming without the aid of human CO2 emissions.
My guess is that AGW supporters will say it still doesn’t mean that the warming back then was global in scope. But it certainly means it will be harder to argue that it wasn’t.
Here’s more about that Medieval Warm Period, which I remember learning about—and being fascinated by—long ago, when I was in school. You probably did, too:
The Vikings took advantage of ice-free seas to colonize Greenland and other outlying lands of the far north. Around 1000AD the climate was sufficiently warm for the north of Newfoundland to support a Viking colony and led to the descriptor “Vinland”. The MWP was followed by the Little Ice Age, a period of cooling that lasted until the 19th century, and the Viking settlements eventually died out.