And about those famous tree core samples from the Ural Mountains (not, as popularly supposed, from Al Gore): over three hundred samples were collected, but they used only ten of them, from a total of three (3) trees. It must have been an oversight. Yep, that was it. Couldn't possibly be the work of a bunch of cherry-picking, grant-grabbing socialist hacks, now could it?
From what little I know, they can measure the growth and health of a tree which tells something about the rainfall or dormacy of the tree. But do you know how they calculate to a degree what the temp was for a certain time period?
I could use some knowledge here.