The author, Sophie Bathurst of Australia, won first place in an international youth essay competition sponsored by the World Bank and other partners. She answered the question "How can you…

Sophie Bathurst |

I had heard that the world spent less on energy R&D than on pet food, so I decided to check. Actually, it's worse than that.    Photo © Sophielouise at Dreamstime Worldwide energy R&D…

Marianne Fay |