Greenhouse Effect and Global Climate Change: Hearings Before the Committee on Energy and Natural Resources, United States Senate, One Hundredth Congress, First Session ... November 9 and 10, 1987 [, June 23, 1988].
U.S. Government Printing Office, 1988 - Global temperature changes
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aerosols agricultural annual areas atmosphere average become begin carbon dioxide cause century CFCs climate change climate model coal Committee computed continue crops decades dependence drought earth economic efficiency emissions energy environmental estimated expected experiments Figure forcing forests fossil fuels future gases global climate global warming going greenhouse effect greenhouse gases growth Hansen hearing heat impacts important improved increase industrial latitudes layer limit look major mean measurements natural nuclear observations occur ocean ozone past percent period plants possible predicted present problem production question radiative forcing range recent reduce regions release require response rise scenario season Senator simulations soil solar stratospheric suggest summer surface temperature temperature change Thank trace trend United variability winter yield
Page 44 - Global warming is now sufficiently large that we can ascribe with a high degree of confidence a cause and effect relationship to the greenhouse effect.
Page 33 - THE inhabitants of planet Earth are quietly conducting a gigantic environmental experiment. So vast and so sweeping will be the consequences that, were it brought before any responsible council for approval, it would be firmly rejected. Yet it goes on with little interference from any jurisdiction or nation. The experiment in question is the release of CO, and other so-called 'greenhouse gases
Page 43 - Number one, the earth is warmer in 1988 than at any time in the history of instrument measurements. Number two, the global warming is now large enough that we can ascribe with a degree of confidence a cause and effect relationship to the greenhouse effect. And number three, our computer climate simulations indicate that the greenhouse effect is already large enough to...
Page 120 - Dudek follows:] ENVIRONMENTAL DEFENSE FUND 1616 P Street. NW Washington, DC 20036 (202) 387-3500 STATEMENT OF DR.
Page 50 - Principal results from the experiments are as follows: (1) Global warming to the level attained at the peak of the current interglacial and the previous interglacial occurs in all three scenarios; however, there are dramatic differences in the levels of future warming, depending on trace gas growth.
Page 204 - RC (1987) Response of vegetation to rising carbon dioxide: Photosynthesis, biomass and seed yield of soybean.
Page 82 - ENVIRONMENTAL DEFENSE FUND 1616 P Street, NW Washington, DC 20036 (202) 387-3500 Testimony of Dr.
Page 42 - NASA Goddard Institute for Space Studies 2880 Broadway New York, NY 10025...
Page 48 - The shaded region in pan (a) is an estimate of global temperature during the peak of the current and previous interglacial periods — about 6,000 and 120,000 before the present, respectively.