MAP20110062866 Yarett, Ian The World's green giants / Ian Yarett Sumario: As government efforts slow, our annual rankings show which companies are still carrying the eco-mantle En: Newsweek : the international news magazine. - New York : Newsweek Inc., 2004-2012 = ISSN 0163-7053. - 24/10/2011 Tomo 158 Número 17 - 2011 , p. 30-39 1. Ranking . 2. Gestión medioambiental . 3. Política empresarial . 4. Empresas . 5. Multinacionales . 6. Desarrollo sostenible .