It is interesting to note that just about 1000 years ago the Vikings were growing barley in Greenland [0]. > “Now we can see that the Vikings could grow corn,

It is interesting to note that just about 1000 years ago the Vikings were growing barley in Greenland [0]. > “Now we can see that the Vikings could grow corn, and this was very important for their nourishment and survival,” Barley seems to do ok in late Spring conditions in the NE United States [1]. I'm not certain you could grow barley or corn in Tundra conditions. I bring this up when people mention warming global conditions because the planet has, in the past, been much warmer than it is now. [0] https://sciencenordic.com/agriculture-archaeology-denmark/vikings-grew-barley-in-greenland/1447746 https://sciencenordic.com/agriculture-archaeology-denmark/vi... [1] https://plants.usda.gov/plantguide/pdf/ccpg_horde.pdf https://plants.usda.gov/plantguide/pdf/ccpg_horde.pdf