Human populations have increased and technology as advanced over time. The United States is no longer empty and rural. We are an urban and industrial nation. The goal of many of us has been to expand into remaining undeveloped areas, leading to urban sprawl with associated boxing and fencing of remaining natrual areas. It is time for a paradigm shift. One where the population lives in high density urban areas, and the remaining land remains as intact ecosystems. Energy supplies need to change from pirmarily fossil fuels, particularly oil, into solar, wind, and nuclear energy. Wind energy should be generated above current farmland, not in open spaces. Biofuels can be part of the mixture, but are not a panacea. A mixture of energy sources is best until alternatives can be found. The cost of green energy is small in comparison to the costs of the Iraq war.