Agence France-Presse: Warm sunshine and sandy beaches make south Florida and its crown city, Miami, a haven for tourists, but the area is increasingly endangered by sea level rise, experts say. During a special Senate hearing held in Miami Beach, Senator Bill Nelson described south Florida as "Ground Zero" for climate change and its threats to coastal communities. The perils for Miami are particularly concerning because it has the most assets at stake in the world in terms of assets like homes, beachfront hotels and businesses,...