Entrance to ‘doomsday’ seed vault repaired after thaw of Arctic ice
OSLO (Reuters) – Norway is repairing the entrance of a “doomsday” seed vault on an Arctic island after an unexpected thaw of permafrost let water into a building meant as a deep freeze to safeguard the world’s food supplies.
The water, limited to the 15-meter entrance hall in the melt late last year, had no impact on millions of seeds of crops including rice, maize, potatoes and wheat that are stored more than 110 meters inside the mountainside.
Still, water was an unexpected problem for the vault on the Svalbard archipelago, about 1,000 kilometers from the North Pole. It seeks to safeguard seeds from cataclysms such as nuclear war or disease in natural permafrost.
“Svalbard Global Seed Vault is facing technical improvements in connection with water intrusion,” Norwegian state construction group Statsbygg, which built the vault that opened in 2008, said in a statement on Saturday. “The seeds in the seed vault have never been threatened.”
Spokeswoman Hege Njaa Aschim said Statsbygg had removed electrical equipment from the entrance (a source of heat) and was building waterproof walls inside and ditches outside to channel away any water.
The number of visitors would be reduced to limit human body heat, she said. Some of the water that flowed in refroze and had to be chipped out by workers from the local fire service.
An underlying problem was that permafrost around the entrance of the vault, which had thawed from the heat of construction a decade ago, has not refrozen as predicted by scientists, Aschim said.
Temperatures in the Arctic region have been rising at twice the global average in a quickening trend that climate scientists blame on manmade greenhouse gases. Svalbard has sometimes had rain even in the depths of winter when the sun does not rise.
“There’s no doubt that the permafrost will remain in the mountainside where the seeds are,” said Marie Haga, head of the Bonn-based Crop Trust that works with Norway to run the vault. “But we had not expected it to melt around the tunnel.”
The trust had so far raised just over $200 million toward an $850m. endowment fund to help safeguard seeds in collections around the globe, she said.
“That is an extremely cheap insurance policy for the world,” Haga said.