Three years ago, not long after Hurricane Irma left parts of Miami underwater, the federal government embarked on a study to find a way to protect the vulnerable South Florida coast from deadly and destructive storm surge. Already, no one likes the answer. Build a wall, the U.S. Army Corps of Engineers proposed in its first draft of the study, now under review. Six miles of it, in fact, mostly inland, running parallel to the coast through neighborhoods — except for a one-mile stretch right on Biscayne Bay, past the gleaming sky-rises of Brickell, the city’s financial district. The dramatic, $6 billion proposal remains tentative and at least five years off. But the startling suggestion of a massive sea wall up to 20 feet high cutting across beautiful Biscayne Bay was enough to jolt some Miamians to attention: The hard choices that will be necessary […]