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The entrance to the international gene bank Svalbard Global Seed Vault (SGSV) near Longyearbyen on Spitsbergen, Norway, 08 April 2015. During permafrost, the germs of more than four million plants such as rice, corn, beans, and potatoes are collected, frozen, and secured for the future in three mountain caves. Photo: Jens Büttner | usage worldwide (KEYSTONE/DPA/Jens Büttner)