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The vault's initial repository will include 250,000 varieties (10 million seeds) from virtually every country in the world. "All that can be seen of the vault outside the mountain is a concrete wedge, inside which a (410-foot) tunnel goes deep into the hillside, ending in three vaults with airlocked doors, keypad entry, stone and plastic-impregnated concrete walls," the Press Association reports.
"The air has been cooled to between -18C and -20C, but Norwegian meteorologists have calculated that without power, the vaults would still be below freezing 200 years from now under the worst climate change scenario."
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