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…time series data on lifetime work hours are unavailable, data on annual average hours worked[5] are available for numerous countries. Trends in annual hours worked should be revealing in view of the observed stability of…
…the initial population No(t) by We also replace a with Dt, the characteristic duration, that is, the time it takes the population N(t) to grow from 10% to 90% of the limit k. Dt is related…
…1981. The Regulatory Approach to Air Quality Management: A case study of New Mexico. Research Paper R-25, Resour. for the Future, Washington, DC 71. Counc. Environ. Qual. (CEQ). 1990. Environmental Quality. Washington, DC: US…
…develop and utilize a numerical ranking system for risks or priorities, but the premature ordering of actions is counterproductive. For example, when the city of Seattle ranked its environmental priorities,…
…Online at URL https://www.bts.gov/ntl/. 34US Department of Transportation (1997) National Transportation Statistics 1997 (Washington, DC: Bureau of Transportation Statistics). Online at https://www.bts.gov/btsprod/nts/. 35J. H. Ausubel and C. Marchetti (1996) ‘Elektron’, Daedalus 125, 139-169. 36M. Jufer…
…1991a, Energy and environment: the light path, Energy Systems and Policy 15:181-188. Ausubel, J.H., 1991b, Does climate still matter?, Nature 350:649-652. Birdsall, N., 1992, Another look at Population and Global Warming, Country Economics Department, World…
…electricity consumption will l ead to ultra-high voltage lines (for example, + 2 megavolts) with higher capacity (for example, 5 or 10 gigawatts) and continental range. The great advantage of continental and intercontinental connections is that…
The following paper was published in Foreign Affairs (November/December 2000, Vol 79, Number 6, pp. 127-144). It is posted with the permission of the editors. Copyright 2000 Council on Foreign Relations SKINHEAD EARTH?…
Always alert for surprising ways that technology may spare environment, we are delighted by papers showing that Viagra could spare threatened species in general and in particular ones exploited in…