If world population predictions come true, food production worldwide must somehow be expanded .to stave off inevitable famine. Most estimates suggest that production must double in the next twenty years merely for nutritional standards to remain at their present inadequate levels. At present rates land agriculture is expanding more slowly than population. In addition, future expansion on a large scale is unlikely because most of the world's arable land is already under cultivation. These facts are nothing new to scientists, who for years have been searching for a workable way out of the food vs. population nightmare. In the past many forward-looking agronomists put their faith in the oceans as the salty savior of earth's malnourished millions. The idea was promising because the sea's bounty seemed limitless. For decades the annual ocean harvest grew at double the population rate.
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