To the editor:

The surface area of Earth is 196,950,277 square miles, and of this area, 70.73% is oceans, 139,295,000 square miles. The average depth of the ocean is 2.38 miles. The greatest is 6.7 miles with two-thirds over 2 miles deep and four-fifths covered by waters more than a mile deep.

The constant atmospheric cycle of evaporation to condensation washes out of the soil into streams, rivers and then to the oceans, all those soluble ingredients that the human diet must maintain in order to survive, thus as the arable land becomes mostly sand and crop yields decline, the diet of future generations must increasingly turn to the products, both live and vegetable, from “ocean farming” to survive.

Strange as it might seem to us, a laboratory analysis between filtered seawater and healthy blood, without the hemoglobin, will find them to be almost a perfect match.

John Richcreek, Seymour