51.   It will fundamentally determine if and when we have a market for trading greenhouse gas emissions and what role, if any, forests will play in that.

52.   Kerry challenged Republican opponents of a treaty who fear that it would hurt American jobs, stressing that cuts in greenhouse gas emissions need not stunt growth.

53.   Lashof said the government has had six voluntary programs in the past decade but greenhouse gas emissions have continued to increase and growth rates have remained unchanged.

54.   Monday a United Nations Global Warming Conference convened in Kyoto, Japan, hoping to break an international stalemate on how to reduce greenhouse gas emissions.

55.   Molinari gave the city notice of the lawsuit in March, when he asserted that the landfill violated the federal Clean Air Act because of its methane gas emissions.

56.   Nor does Honda support the California bill to cut greenhouse gas emissions, preferring a federal policy to state-by-state variances in regulations.

57.   On Friday, Clinton won a commitment from Mexican President Ernesto Zedillo that Mexico will agree to limits on greenhouse gas emissions.

58.   Republicans deplore the arbitrary and premature abandonment of the previous policy of voluntary reductions of greenhouse gas emissions.

59.   Romm is an expert on energy technologies like solar power and conservation that would help control greenhouse gas emissions.

60.   She pioneered much of the research into the role of land-use changes on global warming, analyzing the effects of greenhouse gas emissions resulting from tropical deforestation.