U.N. says by the year 2000, nations will be wiped off the face of the Earth due to Global Warming

I wonder what the chart would look like if we kept using Tree rings to predict what the temperature was in the last 100 years. Im not a climate scientist, but it's hard to believe you can tell what the average temperature was in any given year to a fraction of a degree by looking at tree rings.

It's not hard at all. Less tree ring gap, less growth, less water, more drought, higher temps.
 
It's not hard at all. Less tree ring gap, less growth, less water, more drought, higher temps.

I didn't say I don't know how it works. I was saying how can you tell to within a fraction of a degree. Could a scientist tell me what the average temperature was in 1993 by looking at tree rings to within 1/10th of a degree. I'd love to see him try.
 
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