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Kelp growing off the Falkland Islands
may grow to from 150 to 200 feet tall. (Photo: Cindy Buxton
and Annie Price, published in Green Inheritance by Anthony Huxley.)
In some parts of the world, kelp is commercially cultivated and harvested by boat. (Photo by Jeff Foott, published in Green Inheritance.)
Twists of blue green algae, spirulina, each a quarter of a millimeter long , are potentially of great importance in feeding a hungry world. Spirulina is suitable for industrial production in open ponds or closed tubes and outperforms all of the major crops with yields ten times higher than wheat. A mat of spirulina is on a conveyor belt at a processing plant in Mexico. ( Photo by Robert Harding and published in Green Inheritance.)
Japanese seaweed harvest. The Japanese eat a variety of dried seaweed, including the universally known sushi products. (Photo by Joel Sackett and published in Japan a Facts on File publication.)
