A worker opens the iced entrance door to storeroom 1 at international gene bank Svalbard Global Seed Vault (SGSV) near Longyearbyen on Spitsbergen, Norway, October 20, 2015. Two consignments of crop seeds will be deposited next year in a “doomsday vault” built in an Arctic mountainside to safeguard global supplies. The vault, which opened on the Svalbard archipelago in 2008, is designed to protect crop seeds, such as beans, rice and wheat against the worst cataclysms of nuclear war or disease. (Photo by Anna Filipova/Reuters)

Aluminium bags with the seeds inside are seen at the international gene bank Svalbard Global Seed Vault (SGSV) near Longyearbyen on Spitsbergen, Norway, October 20, 2015. (Photo by Anna Filipova/Reuters)

An ice covered entrance door to the international gene bank Svalbard Global Seed Vault (SGSV) near Longyearbyen on Spitsbergen, Norway, October 20, 2015. (Photo by Anna Filipova/Reuters)

Asmund Asdal Senior Adviser from NordGen inspects seeds in storage at the international gene bank Svalbard Global Seed Vault (SGSV) near Longyearbyen on Spitsbergen, Norway, October 20, 2015. (Photo by Anna Filipova/Reuters)

Asmund Asdal, Senior Adviser from NordGen, holds 4 different samples of rice seeds from the Philippines at the International gene bank Svalbard Global Seed Vault (SGSV) near Longyearbyen on Spitsbergen, Norway, October 20, 2015. (Photo by Anna Filipova/Reuters)

Empty storage room 2 at the international gene bank Svalbard Global Seed Vault (SGSV) near Longyearbyen on Spitsbergen, Norway, October 20, 2015. There are only 2 storage rooms in the SGSV, the first one is almost full. (Photo by Anna Filipova/Reuters)

International gene bank Svalbard Global Seed Vault (SGSV) near Longyearbyen on Spitsbergen, Norway, October 19, 2015. (Photo by Anna Filipova/Reuters)

An ice covered entrance door to the international gene bank Svalbard Global Seed Vault (SGSV) near Longyearbyen on Spitsbergen, Norway, October 20, 2015. (Photo by Anna Filipova/Reuters)

The entrance tunnel to the international gene bank Svalbard Global Seed Vault (SGSV) near Longyearbyen on Spitsbergen, Norway, October 20, 2015. (Photo by Anna Filipova/Reuters)

Seeds are stored on shelves at the international gene bank Svalbard Global Seed Vault (SGSV) near Longyearbyen on Spitsbergen, Norway, October 20, 2015. Each country that sends seeds to the SGSV have to send it in a plastic box with seperate aluminium bags containing different seeds. (Photo by Anna Filipova/Reuters)

Plastic boxes on shelves hold seeds from the Icarda in Syria at the international gene bank Svalbard Global Seed Vault (SGSV) near Longyearbyen on Spitsbergen, Norway, October 20, 2015. The empty space are the missing boxes sent back when Syria requested the first-ever withdrawal of seeds from the Svalbard’s Global Seed Vault earlier this year. (Photo by Anna Filipova/Reuters)