Bristlecone Pine Forest
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Here's Morten looking like a cowboy. These windblown bristlecone pines
in the high Sierras are the oldest living things in the world. Thin
drill cores tell the story of five thousand years of global climate fluctuations.
Because of the cold and the resins, the dry wood of dead trees stays around
just as long, and archaeologists have been able to use this record to calibrate
the carbon-14 dating method. Artifacts and remains dating back to the very
beginning of agriculture can now be dated more accurately, thanks to these
ancient witnesses.
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