A Safe and Sustainable World: The Promise Of Ecological by Nancy Jack Todd

By Nancy Jack Todd

Explores the delivery and improvement of ecological layout. within the past due 60's, a study and schooling association used to be based, to discover the methods a extra sustainable global will be created. This publication covers the tale of that trip. It seems to what has to be performed to combine human ingenuity and the evolutionary intelligence of the wildlife.

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The first experiments were to investigate the effects of increasing the area of water surface exposed to sunlight. Not only the upper surface of the water, as in natural systems, but the outer rim of the column was exposed to light through the translucent walls of the tanks. Newcomer and biology graduate from the University of California at Berkeley, Ron Zweig, wrote one of the first reports: “The theory behind experimenting with these ponds is to increase the amount of pond surface area exposed to solar energy.

The Styrofoam was enclosed in canvas bags to prevent it from breaking up and floating loose in the pond. Nylon line anchored the cages to cinder blocks on the pond bottom. As with his other efforts in fish raising, Bill was anxious about overreliance on commercial feeds. “There are numerous manufacturers of dry feeds for trout and catfish,” he told New Alchemy followers. “Scientifically inclined readers may be appalled at the energetics of formulating such a feed. Others will question the appropriateness of feeding fish on potentially useful human food.

After much pondering we settled on the plan of waiting till Saturday, when there would be more help, and picking it by hand. Saturday arrived and harvesting began. The first hour was great fun. We would gather up great armloads of stalks and totter to the edge of the field bearing enormous sheaves. By the second hour we were beginning to wonder why the picked section had grown so little in relation to the vast area that remained to be cleared. By the third hour conversations had begun to lag and the crowd had thinned perceptibly.

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