Table 7.11. Agricultural Yield Changes Under a 2x CO2 Climate (percentage of Gross Agricultural Product)." a b After Rosenzweig et al (1993), of also Fischer et al. (1993[1994?]), Rosenzweig and Parry (1994), and Reilly (1994). c The scenarios are (1) no adaptation, (2) minor shifts, and (3) major shifts in behaviour. Between brackets: figures for 50% reduction in marginal costs of renewables over all intervals, and for a doubling of marginal costs of forestry over all intervals respectively. alternatives (nuclear, hydro, wind, geothermal, etc.) (all % of total energy); ΣEner = tɔtai energy; (M)toe = (million) tons of oil equivalent: popul population: GNP gross nadonal product in 1989. Western Europe - OECD Europe (includes Turkey); Eastern Europe = non-OECD Europe (includes Cyprus, Gibraltar and Malta); JANZ-Japan, Australia and New Zealand. Source: Van Ettinger (1994), p.12. |