The Transport System and Society’s Metabolism in the UK

This paper analyses the interrelation between the transport system and measures of resource consumption such as material and energy consumption over a 60-year period (1937–1997) in the UK. Non-motorized transport and time consumption for mobility are estimated in addition to conventional measures of transport. During the period analyzed, the UK population grew by 20% while transport of goods and persons increased more than threefold and material and energy consumption almost doubled. The transport intensity of domestic material input (DMI) doubled to 300 ton-kilometers (tkm) per ton of DMI while the transport intensity of domestic energy consumption (DEC) doubled to 20 tkm per gigajoule (GJ) of DEC. Thus, while the material and energy intensity of GDP declined significantly, a well-established trend in many advanced countries, the transport intensity of materials and energy consumption rose. These findings suggest a close link between transport, economic development, and long-term structural transformations. In the case of personal transport, a rebound effect was also observed: whereas the average speed of transport has greatly increased, the average number of hours per day devoted to personal transport has not declined.     

Environmental Migration and Sustainable Development in the Upper Reaches of the Yangtze River

This paper explores the demographic impacts of the implementation of the Grand Development in West China policies and environmental rehabilitation projects in the upper reaches of the Yangtze River. It analyses the interaction between the environmental reconstruction and environment-related migration in this region. The intertwined nature of environmental, ethnic, and poverty problems not only bears negatively upon the alleviation of poverty conducing to the accruement of wealth of the poverty-stricken population, but also hinders the rehabilitation of the environment. It brings forth some opinions regarding improving the capacity of regional sustainable development through environmental migration.     

“Replacement Migration”: The UN Population Division on European Population Decline

The imminent decline of populations in Europe, Japan and South Korea has generated widespread apprehension, largely because of fears that there will not be enough working age people to support the elderly. The UN Population Division has seemed to endorse those fears by an analysis of the levels of immigration needed to provide a constant number or ratio of workers, and by writing of the need for a solution to population decline. On the other hand, smaller populations would be environmentally advantageous in those countries. They must return to replacement level fertility or risk replacement by other populations, but they would benefit if they reached stationarity at a smaller population level. The transition is manageable if a higher proportion of working age people go to work. Right now, though dependency ratios are supposedly highly favorable, most of those countries are plagued by high unemployment levels.     

A critical disjuncture? The culmination of post-World War II socio-demographic and economic trends in the United States

This essay examines the consequences of major social, demographic and economic trends in the United States since World War II. These include rising women’s employment, the ‘Baby Boom’, the outlines of the so-called ‘new’ immigration, the increasing racial and ethnic diversity deriving from that immigration, the economic contexts in which recent US immigration has occurred, and recent technologically-induced features of global work flows that will condition immigration’s future reception and effects. Women’s wartime work experiences, together with their economic opportunities in the ensuing decades, boosted married women’s autonomy and domestic leverage. Rising economic prosperity encouraged marriage and family formation even as growing employment among married women of childbearing age made having and taking care of large families more difficult. World War II also spawned the expansion of migration to the United States, which in turn converted the country from a largely biracial society with a sizable white majority and a small black minority into a multiracial, multiethnic society with greater racial and ethnic boundary crossing and increasingly blurred colour lines. A major issue is whether currently changing economic conditions and social institutions will support and strengthen such tendencies or instead weaken them. Without robust job growth, the demographic legacy of the baby boom, which now involves ever-rising numbers of retired people, will be more difficult to support, especially given the country’s current fiscal deficits. Greater earnings inequality and weak job growth may also poison the climate for further immigration to the US, thus diminishing the chance that newcomers can continue contributing to the dissolution of fault lines among racial-ethnic groups and to the resolution of periodic labour shortages.