More seeds deposited in 'doomsday' vault

The stores of seeds in a "doomsday" vault in the Norwegian Arctic are growing as researchers rush to preserve 100,000 crop varieties from potential extinction.

The imperiled seeds are going to be critical for protecting the global food supply against devastating crop losses as a result of climate change, said Cary Fowler, executive director of the Global Crop Diversity Trust.

"These resources stand between us and catastrophic starvation," Fowler said. "You can't imagine a solution to climate change without crop diversity."