[SunkenCiv]

This 9,550 year old spruce has been discovered in Dalarna, Sweden. A favourable climate has produced an upright trunk since the beginning of the 1940s. (Credit: Leif Kullman)

[norwaypinesavage]

"9,000 years ago the now brown lakes were clear and full of nutrients and had a high pH level. The average temperature was much higher than today and the dense forests were full of lush broad-leaved trees."

High trmperatures and high pH means......Global Warming. The ancient Swedes must have driven SUVs to make those "long distant visits".