Playa Del Carmen, coastal erosion. Photo source: ©© Andrewarchy
The last time the world warmed, 120,000 years ago, the Cancun coastline was swamped by a 7-foot (2.1-meter) rise in sea level in a few decades. A week from now at that Mexican resort, frustrated negotiators will try again to head off a new global deluge.
The disappointment of Copenhagen, the failure of the annual U.N. conference to produce a climate agreement last year in the Danish capital, has raised doubts about whether the long-running, 194-nation talks can ever agree on a legally binding treaty for reining in global warming…