Winners hold up their Greenwash Oscar awards. Photo: Chris Albertyn/groundWork Johannesburg -- Oil majors Shell, BP and ExxonMobil dominated todays World Summit Greenwash Academy Awards, beating Biotech giants Monsanto, Novartis and Aventis in a glittering award ceremony in Johannesburg. Local South African underdog Sasol edged out Eskom for Best Picture.Other winners were Enron for Best Makeup, Arthur Andersen for Best Documentary Destruction, and an unprecedented joint award to Total, Unocal and Premier Oil for Best Foreign Direct Investment.The ceremony was disrupted briefly by Ronald McDonald, who demanded an Award for McDonalds partnership with UNICEF. The Academy spontaneously decided to...