UN climate report urges world to adapt now, or suffer later

Climate change is upon us, and humanity is far from ready, the United Nations climate panel warned in a major report yesterday.

Noting that nearly half the world's population was already vulnerable to increasingly dangerous climate impacts, the report calls for drastic action on a huge scale: A third to a half of the planet needs to be conserved and protected to ensure future food and fresh water supplies. Coastal cities need...