Green roofs energy savings. http://www.globalchange.com Data from Chicago, Tokyo, California, New York, Australia, Toronto, Germany, Reduction of roof temperature, city climate, heat island reduction, cooling savings, environmental. High rise blocks with ventilation costs. Retrofitting. Open living spaces, carbon-neutral buildings with natural light, renewable power generation. Wind turbines on roofs and solar cells. Payback period of renewable energy generation. Falling solar cell costs. Solar cell demand in Germany. Government subsidies, generous unit payments for home generation electricity. Innovation and new technology. Kwhr. Distortion of energy markets. Economies of scale. Cost per unit falling. Economy, global warming, energy conservation and real estate industry. Environment, environmental change, climate change. Risks in real estate development. Operational and management risks and role of a Futurist. What is a Futurist? Identifying new opportunities in buildings control,...