Comment by thaumasiotes
Comment by thaumasiotes a day ago
> Or could there have been warmer micro climates?
Microclimates? The whole world was warmer. Remember when the Vikings settled Greenland? That was 1000 years ago.
Comment by thaumasiotes a day ago
> Or could there have been warmer micro climates?
Microclimates? The whole world was warmer. Remember when the Vikings settled Greenland? That was 1000 years ago.
What graphs are you seeing? This is what the article says:
> Radiocarbon dating suggests the ridges [farming furrows or similar] were initially constructed roughly 1,000 years ago. They were maintained and used for 600 years after that.
Wikipedia says this:
> Erik Thorvaldsson (c. 950 – c. 1003), known as Erik the Red, was a Norse explorer [...]
> Around the year of 982, Erik was exiled from Iceland for three years, during which time he explored Greenland, eventually culminating in his founding of the first successful European settlement on the island. Erik would later die there around 1003 CE
["Erik the Red"]
And this:
> The Little Ice Age (LIA) was a period of regional cooling, particularly pronounced in the North Atlantic region.
> The period has been conventionally defined as extending from the 16th to the 19th centuries
> The NASA Earth Observatory notes three particularly cold intervals. One began about 1650, another about 1770, and the last in 1850
["Little Ice Age"]
And this:
> The Medieval Warm Period (MWP), also known as the Medieval Climate Optimum or the Medieval Climatic Anomaly, was a time of warm climate in the North Atlantic region that lasted from about 950 CE to about 1250 CE.
["Medieval Warm Period"]
The article would appear to suggest that the farm was established near the beginning of the Medieval Warm Period and abandoned near the beginning of the Little Ice Age... which seems incredibly unsurprising.
> They would have been farming here during a cool period.
I see no indication of that.
> The NASA Earth Observatory notes three particularly cold intervals. One began about 1650, another about 1770, and the last in 1850
Why do you ask? I'm not familiar with any such theory. Krakatoa erupted in... 1883, which doesn't seem like a good match. And volcanic winters don't seem to last much more than 10 years.
https://en.wikipedia.org/wiki/Volcanic_winter#Past_volcanic_...
There is a theory that the Little Ice Age was precipitated by the reforestation of land in America as the natives died off from exposure to European diseases. And of course, there's always the theory that it's just something that happened.
I didn't realize that the original quote (from https://news.ycombinator.com/item?id=44282822) was lifted nearly verbatim from Wiki: https://en.wikipedia.org/wiki/Little_Ice_Age
More from that same page:
> Several causes have been proposed: cyclical lows in solar radiation, heightened volcanic activity, changes in the ocean circulation, variations in Earth's orbit and axial tilt (orbital forcing), inherent variability in global climate, and decreases in the human population (such as from the massacres by Genghis Khan, the Black Death and the epidemics emerging in the Americas upon European contact).
According to graphs I’m seeing, it looks like it was warmer for a period, but then cooler until now. They would have been farming here during a cool period. It’s entirely possible that they established the farm thousands of years ago when it was warm (and warm means about the same temperatures as today), then kept farming throughout the ‘little ice age’ despite crops yielding less. Perhaps that’s what triggered such a huge expansion of the farm land. Or, perhaps there were far more people there than we think. Lots of questions