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his favorite schemes for decreasing fuel consumption is the‘‘dynaship, a freighter powered by sail.” The dyna-ship idea was developed by a retired designer for Shell Oil. It’s not implausible, Clark said. Satellites now give us access to more detailed and accurate weather information than ever before, The designer of the dyna-ship estimates that that craft would use only 5% of the energy now used by freighters in the North Atlantic shipping lanes and could take 15% of the time off the trip, Clark is especially interested in the architectural application of solar power. “A tremendous amount of intelligence and understanding of solar power was used in indigenous architecture,” he said. The cliff houses of the Indians in Mesa Verde, N.M. took advantage of the sun’s location in winter and summer and its special reflection toward their cliff during each season to help with the natural cooling and heating of interior spaces.
By contrast, Clark said, a popular solution for housing 20th century Americans is the ‘‘mobile home,” designed with no particular location or climate in mind, and always ready to be tugged, by auto, down the highway to a' new location.
One ‘‘interesting lesson on the environment” noted by Clark: The drilling of the first oil well,- in 1859 in Pennsylvania, came during a severe shortage of whale oil, since the whale population was heavily hunted, and dwindling. ‘‘It’s possible, that if oil hadn’t been discovered when it was, there would be no whales for the environmentalists to worry about now,” he said.D
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