Inter Press Service: The beauty of the Mexican Caribbean resort city of Cancún may have been one reason for choosing it to host the upcoming global summit on climate change. But Cancún has little to recommend it as a model for adapting to the challenges posed by climate change. The destruction of mangroves, excess garbage and hotel sprawl are just some of the environmental problems found in Cancún, or “pot of snakes” — just one of many meanings attributed to the city’s Mayan name. “Cancún is an embarrassment….