New Scientist: KEVIN CONRAD was brought up in Papua New Guinea, the son of American missionaries. He spent his childhood "shooting birds, cutting down trees and burning things". His name might not be familiar, but at the Bali climate conference last December he drew applause and worldwide TV coverage for taking on the US. If it wasn’t willing to lead the world in combating climate change, said Conrad, head of the Papua New Guinea delegation, the US should "get out of the way". There is more to …