Miami Herald: The tide is rising; that is no longer in doubt. Miami-Dade must prepare for sea-level rise made inevitable by the billions of tons of greenhouse gases already dumped into the atmosphere worldwide. We exist on a sliver of ground between the Everglades and the Atlantic Ocean only made dry by a complex network of canals and locks. We measure our elevation above the sea in single digits, making South Florida internationally recognized as one of the most vulnerable places on Earth to sea-level rise. ...