71.   But environmental groups criticized Bush, saying the timetable was too stretched out and that a climate plan without a cap would not reduce emissions.

72.   But environmentalists argued that the formula does not go far enough to reduce emissions.

73.   But Ford has been virtually alone in also reducing emissions from full-sized light trucks, for which federal regulations are particularly lenient.

74.   But he reiterated the American desire that developing countries and rich ones participate in joint efforts to reduce emissions in the poorer nations.

75.   But it is more widely distributed as ETBE, a gasoline additive used to raise octane and to reduce carbon monoxide emissions.

76.   But smog is on the minds of air quality regulators who are considering a new rule reducing emissions from Southern California restaurants.

77.   But other Washington lobbyists said that he had also argued against action on reducing carbon dioxide emissions.

78.   But staff members cautioned that each company would be allowed to revise its risk estimates if it can prove it has further reduced emissions.

79.   But the job of reducing emissions also is made significantly easier for Europe by the collapse of Communism.

80.   But the United States has yet to propose any amounts by which emissions should be reduced or to say when limits should take effect.