That range seems easily obtainable, especially if the economy cooperates, and most fund managers think it will.

FORBES: Hang Up On Your China Fund Manager

By using easily obtainable cobalt and phosphates, the MIT work could make it a lot more viable to obtain hydrogen directly from solar cells.

ECONOMIST: Looking to leaves for a way to store solar power after sunset

Fashionably, Mr Roberts believes that a local system based on easily obtainable seasonal foods that do not need to be transported huge distances would form part of a solution.

ECONOMIST: Food in rich countries

The milk is not easily obtainable in the UK and judging by its full-on taste, we're not likely to be seeing Britain's bovine stocks replaced with these desert-loving creatures any time soon.

BBC: NEWS | UK | Magazine | Milk: One hump or two?