[djf]

That tree ring stuff is fascinating. By scanning different logs, logged at different times, but whose lifespan overlapped, they basically have the annual weather going back 8000 years or so.

[blam]

"That tree ring stuff is fascinating. By scanning different logs, logged at different times, but whose lifespan overlapped, they basically have the annual weather going back 8000 years or so."

Yup, love it. The tree ring chronology is now over 10k years. Some of the dendrochronologists are so good, they can read these rings with out any reference book, etc.