In this study, the award-winning environmental analyst Lester Brown and his colleagues have charted progress in building the eco-economy - an economy in harmony with the Earth's ecosystems, not undermining them. This edition of the biennial reader highlights 12 key trends, from population growing by 80 million annually, to ice melting, to the boom in use of solar cells. It explains, for example, why wind-generated electricity is emerging as the foundation of the new post-fossil fuel energy economy. It also specifically investigates China's desertification problem, the issues surrounding food production, and the challenge of controlling climate change. Drawing on research and analysis by the Earth Policy Institute, the reader monitors the shift from the old economy to the new.