ROBERT HUNZIKER—In time, sea levels will surpass 1-2-3-4-5 feet, and more, but within an unknown time frame. Keep in mind even one-foot of an increase spells worldwide coastal disasters. A Noah’s Ark scenario is not needed to upend coastal cities throughout the planet.
The rule of thumb for sea level rise is: One inch of sea level increase submerges 50-100 inches of beach coastline. So, in plain English, if one-inch equals 4-to-8 feet of submerged beach, in turn, one-foot will submerge 48-to-96 feet of coastline beach. (Source: NASA-Jet propulsion Laboratory). That’s a lot, especially for Miami Beach, where the city has already had to raise streets (Google: “Miami Beach is Raising Streets by 2 Feet to Combat Rising Seas” to see a photo).