Norway to boost climate change defences of 'doomsday' seed vault

Norway on Saturday said it would boost protection of a seed storage vault designed to protect the world's crops from disaster, after soaring temperatures caused water to leak into its entrance.Situated deep inside a mountain on a remote Arctic island in a Norwegian archipelago, the Svalbard Global Seed Vault, dubbed the "doomsday" vault, is the largest of its kind and can store up to 2.5 billion seeds.Freezing temperatures inside the vault keep the seeds, sealed in packages and stored on shelves