Seeds of Hope

In this weeks edition of The Economist, an article enititled 'Seeds of hope' discusses "An international seed bank being set up in the Arctic". Here is the article:

If catastrophe were to befall humanity—be it plague, nuclear war or an asteroid striking the Earth—what provision could be made for the survivors? This week work began on a project to re-establish agriculture should such a calamity occur. On a remote Arctic island, a vault is being dug to house the seeds of up to 3m different crops, as part of plans to protect food supplies across the world.

The Svalbard International Seed Vault, as the facility is called, will cost the Norwegian government, which is paying for it, about $3m. Eventually it will contain samples of every known crop variety that can be grown from seed, from the tropics to the highest latitudes.

Svalbard was chosen because it is cold and remote. The island is expected to remain frozen for the next hundred years, despite changes in the world's climate, and the vault is being carved out of the ice and rock. Seeds deposited in the bank will be preserved by the cold, certainly for hundreds and perhaps even thousands of years. The freezing conditions, not to mention polar bears, should put off any unwelcome visitors. Just in case they do not, the bank will be 70 metres (230 feet) underground, inside concrete walls more than a metre thick and behind a strong security door and a perimeter fence.

The Global Crop Diversity Trust, a charity involved in the creation of the vault, estimates that there are now some 1,400 gene banks for crops, scattered on every inhabited continent. It is developing plans to conserve every important crop on the planet. Some do not have seeds and so cannot be stored on Svalbard. Bananas, for example, are estimated by the United Nations Food and Agriculture Organisation to be the world's fourth most consumed food (after wheat, rice and maize) and form the staple diets of some 400m people in the tropics. Bananas can only be conserved as cuttings, and these must be cut back and replanted every few months. Work is under way to develop better ways of preserving such crops.

Many of the gene banks are in countries where the crop is not native, to make it more likely that the species will survive a disaster. (The banana bank is in Belgium.) The Svalbard vault fulfils this criterion for any seed you can think of. Whether anyone will be able to reach it if catastrophe strikes is another question.