bplist00Ô X$versionY$archiverT$topX$objects† _NSKeyedArchiverÑ Troot€¢ U$nullo$From Bill Gates, How to Avoid a Climate Disaster List of Useful Questions/Charts How much greenhouse gas is emitted by the things we do? C Making things (cement, steel, plastic) 31% C Plugging in (electricity) 27% C Growing things (plants, animals) 19% C Getting around (planes, trucks, cargo ships) 16% C Keeping warm and cool (heating, cooling, refrigeration) 7% How much power does it take? C The world 5,000 gigawatts C The United States 1,000 gigawatts C Mid-size city 1 gigawatt C Small town 1 megawatt C Average American house 1 kilowatt How much power can we generate per square meter? Energy source Watts per square meter C Fossil fuels 500 10,000 C Nuclear 500 1,000 C Solar* 5 20 C Hydropower (dams) 5 50 C Wind 1 2 C Wood and other biomass Less than 1 $)27ILQSV\ ¨