Border crossing: Time magazine goes green, literally

This week's Time magazine cover (US), for only the second time in its history, has replaced its trademarked red border with another colour, in this case green. It's to highlight the cover story on global warming and climate change, illustrated by a takeoff on that perennial cliche, the flag raising at Iwo Jima. How to win the war on global warming, its main coverline trumpets.In his letter to