Agreed, I think humans planting "exotic" trees have a lot more to do with tree migration than just global warming alone. Also, last year before we turned my ch

Agreed, I think humans planting "exotic" trees have a lot more to do with tree migration than just global warming alone. Also, last year before we turned my childhood home into a rental I cleared out a large Coniferous tree I planted when I was a young sapling. It was much, much larger than 12 inches tall.