How to deal with the environmental consequences of energy use is a complex problem that poses a serious challenge to industrial leaders, policymakers, and research scientists the world over. Energy and the Environment in the 21st Century systematically addresses the larger issues of energy technology and the environment, providing an up-to-date assessment of projected energy requirements worldwide and of the ways these requirements can be met in an environmentally acceptable manner. This valuable compendium of more than eighty original contributions provides the basis for an international agenda of energy and environmental technology and policy. The various chapters are united by the theme that new and improved energy technologies are central to meeting humanity's goals of environmental, economic, and social well-being. Energy and the Environment in the 21 st Century first addresses the broad underlying issues of environmental science, energy technology, demographics, economics, and policy and then takes up specific areas of energy technology, including transportation, industrial processes, building systems, electric power systems, resource supply, and advanced energy-supply technologies. Jefferson W. Tester is Professor of Chemical Engineering and Director of the Energy Laboratory at MIT.