I discovered the true meaning of sustainability at this year's fall Twentynine Palms Weed Show. It's a little known 70-year-old tradition held in a remote town deep in California's Mojave Desert. This is the little known Oasis of Mara, now the hamlet of Twentynine Palms, an hour northeast of Palm Springs. It's a short jump to the Marine Base, which wasn't there when the show started. It was founded much earlier, by convalescents from WWI mustard gas who took the long trip on dirt roads to the isolated area with air ideal for healing ravaged lungs. Pasadena physician Dr. Luckie treated fathers, sons and brothers for mustard gas after the war and insisted they all move to the therapeutic climate.