Svalbard Global Seed Vault

The Svalbard Global Seed Vault is the largest backup facility for the world's crop diversity. It lies inside a mountain in the Svalbard archipelago, halfway between mainland Norway and the North Pole. The vault safeguards duplicates of over 1.4 million seed samples drawn from almost every country in the world, and it is described as the ultimate insurance policy for the world's food supply.

The vault exists to protect crop diversity by safeguarding seeds of the crops grown and consumed today, holding them as a reserve against loss elsewhere. When a crop variety disappears its valuable traits may be gone forever, so the stored seeds serve as a backup from which collections lost elsewhere can be restored. The need is not hypothetical: the national genebank of the Philippines was damaged by flooding and later destroyed by fire, while the genebanks of Afghanistan and Iraq have been lost completely. Against a global network of about 1,700 genebanks the vault functions as a final layer of security.

The arrangement preserves the autonomy of the institutions that use it. Seeds are stored under black box conditions, meaning only the institution that deposited them has access and may withdraw them. Depositing genebanks retain ownership of the material they place in the vault.

The site itself was chosen to serve the same purpose. Spitsbergen was considered ideal because it lacked tectonic activity and had permafrost, which aids preservation.

The idea of a global security storage facility in Svalbard, intended to house duplicates of seed conserved in gene banks, began to be discussed in the 1980s. In 1984 the Nordic Gene Bank, now NordGen, established a backup seed storage facility in an abandoned coal mine outside Longyearbyen. The vault that followed is the largest backup facility for the world's crop diversity.

Groundbreaking for the Svalbard Global Seed Vault took place on 19 June 2006 and the facility opened on 26 February 2008. Construction cost about 45 million krone, equivalent to US$8.8 million in 2008. The vault sits at an elevation of 130 metres. Its profile was recognised in the TIME Best Inventions of 2008.

The permafrost at the site holds temperatures between minus 3 and 4 degrees Celsius.

The seed storage area lies more than 100 metres inside the mountain, beneath rock between 40 and 60 metres thick. The facility is organised into three halls. The surrounding mountain mass carries permafrost whose temperature holds steady between minus 3 and 4 degrees Celsius.

An additional cooling system lowers the temperature of the seed stores to minus 18 degrees Celsius and maintains it at that constant level.

The vault is owned by Norway's Ministry of Agriculture and Food and was designed by architect Peter W. S., with a floor area of about 1,000 square metres. NordGen operates the Seed Vault in cooperation with the Norwegian Ministry of Agriculture and Food and the Crop Trust.

Deposited seeds are held under a black box arrangement. This means storage takes place under black box conditions, so that only the institution that deposited the seeds has access to them and may withdraw them.

As of June 2025 the Seed Vault conserves 1,355,591 accessions, a body of material representing more than 13,000 years of agricultural history. In 2015 researchers began sending seeds from the Middle East for safeguarding in Svalbard because of ongoing conflicts. For the Seed Vault's tenth anniversary on 26 February 2018 a shipment of 70,000 samples was delivered, bringing samples received to more than one million.

Water often seeps into the 100 metre entrance tunnel in warmer spring months and in one case encroached 15 metres before freezing. In 2019 the Norwegian public works agency Statsbygg completed tunnel improvements, waterproofing the walls, removing heat sources and digging exterior drainage ditches. The seed storage area itself lies more than 100 metres inside the mountain, under rock between 40 and 60 metres thick.