Subject(s): Environmental policy -- Economic aspects -- Natural resources Management -- Economic development -- Environmental aspects -- Food scrcity , Global ponzi economy -- Challenges : population pressure- land and water, Governmental refugees -- Climate change and the energy transition -- Stabilizing climate - An energy efficiency revolution : Revolution in lighting technology, Energy efficient applications, Zero carbon building, Electrifying the transport system , New material economy -- Stabilizing climate : renewable energy, Solar cells and thermal collectors, Plant- based source of energy, Hydropower, World energy economy of 2020 -- Ecology of cities, Redesigning urban transport, Reducing urban water use, urban farming, Upgrading squatter settlements -- Eradicating poverty and stabilizing population : Education for all, Health care -- Restore the earth : Forest, Rebuilding soil, Regenerating fisheries, Protecting plant and animal diversity, Earth restoration budget -- Food security -- Taxes and subsidies , Mobilization of resources, 3 models of social change