South African tennis star Wayne Ferreira should have been defending his Naples title in the Champions series for senior players this week. Instead of showing off his ground strokes in Italy, the Olympic medallist is here, with his latest passion: atmospheric water generators. "This machine captures the moisture from the outside air and turns it into the purest and healthiest, and highly oxygenated, drinking water available on earth,' he says, gesturing as he describes the working of the EcolaBlue machines displayed at Globe 2008, a trade fair and conference on business and the environment being held here. So what turns a former top-10 ranked professional tennis player into the president of EcolaBlue Life and Energy? "I started this company only 10 months ago, along with an old friend Henri-James [Tielman], but I've always been interested in environmental issues,' says Mr. Ferreira. "I was one of the first to get a hybrid car, before I gave it up. I like the concept but I wanted to stay alive