Not all farm tours are as down-home. On Friday mornings, you can get a terrific glimpse of what might be the future of food at a sprawling project called the (OTEC) National Energy Laboratory of Hawaii in the lava fields just outside the Kona airport on the Big Island. Here, an experiment designed to generate electricity by using the temperature difference between cold, deep ocean water and warm shore water is paying unexpected dividends
Chez Froggie 