Even though it hasn't been officially announced, it's been widely reported that architectural firm Grimshaw has won the bid to design the third runway at Heathrow. How much design a strip of tarmac needs I don't know, but presumably there's more to it than my ignorant assumptions suggest.
Grimshaw are, of course, the firm behind such eco-hits as the Eden Project and the firm's chairman Sir Nicholas Grimshaw has something of a reputation for sustainable and environmentally considerate approaches to architecture.