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

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

63.   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.

64.   Separately, the U.S. by December is supposed to come up with a plan to slash its greenhouse gas emissions.

65.   So the treaty partners are now trying to agree on expanded measures to control the growth of greenhouse gas emissions well beyond the turn of the century.

66.   Some environmental activists suggest they expect Clinton will stop short of advocating a rollback of greenhouse gas emissions.

67.   Supporters of mandatory targets for cutting greenhouse gas emissions used the increase to argue that voluntary targets had not worked.

68.   That is why White House policy wonks are now focusing on hybrid plans that limit greenhouse gas emissions, yet provide an escape hatch.

69.   That may be the only meaningful alternative to a politically doomed climate treaty based on specific targets for cutting greenhouse gas emissions, he said.