Aiming for sustainability - new fish farming techniques

By midcentury, mankind must double food production to fill the bellies of an exploding population of humans, according to the United Nations. A big part of that growth is likely to come from farmed seafood.

"With Earth's burgeoning human population to feed, we must turn to the sea with new understanding and new technology," famed oceanographer Jacques Cousteau said in 1973. "We need to farm it as we farm the land."

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