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Global Climate Change Digest
A Guide to Information on Greenhouse Gases and Ozone Depletion
Published July 1988 through June 1999

FROM VOLUME 6, NUMBER 3, MARCH 1993

PROFESSIONAL PUBLICATIONS...
GENERAL INTEREST AND POLICY

Item #d93mar1

"A Guide to Global Warming Potentials (GWPs)," L.D.D. Harvey (Dept. Geog., Univ. Toronto, Toronto ON M5S 1A1, Can.), Energy Policy, 21(1), 24-34, Jan. 1993.

The currently used GWP index is subject to major conceptual difficulties: the lifetime of part of the atmospheric CO₂ is essentially infinite, and there are major uncertainties in the lifetimes and indirect heating effects of important greenhouse gases (which are reviewed here). Proposes an alternative index which circumvents these difficulties, shifting emphasis away from short-lived gases such as methane and toward CO₂.

Item #d93mar2

"The Dilemma of Fossil Fuel Use and Global Climate Change," R.R. Judkins (Oak Ridge Nat. Lab., Oak Ridge TN 37831), W. Fulkerson, M.K. Sanghvi, Energy & Fuels, 7(1), 14-22, Jan.-Feb. 1993.

Recommends pursuit of low-cost measures that would slow greenhouse gas emissions, and technical preparation for much larger reductions should they be deemed necessary. The former include greater research and development of efficient end use and nonfossil sources; policies that encourage methane and other hydrogen-rich fuels, especially in the developing nations; experiments with CO₂ recovery and sequestration; technical assistance to developing and eastern European countries.

Item #d93mar3

Corrections to figures in the Dec. 10 commentary "IPCC Strategies Unfair to the South," Nature, p. 374, Jan. 28, 1993.