21.   And two weeks later he decided against supporting ratification of the Kyoto Protocol, the international treaty to reduce greenhouse gas emissions.

22.   Another key difference between the Americans and the other major participants is the role developing countries should play in curbing greenhouse gas emissions.

23.   Another key difference between the Americans and other participants is what role developing countries should play in curbing greenhouse gas emissions.

24.   At a news conference here on Wednesday, American negotiators said they were all for aggressively cutting greenhouse emissions domestically.

25.   Both Europe and Japan have already achieved much better records than the United States in controlling greenhouse gas emissions without sacrificing quality of life.

26.   A bill to reduce greenhouse gas emissions from automobiles has stalled in the California State Assembly, the latest legislative setback for environmental groups.

27.   Bush wants to gently nudge businesses to reduce and voluntarily track their greenhouse emissions.

28.   But Clinton seemingly recognizes that there is no easy solution to the steady growth of greenhouse gas emissions.

29.   But global warming and the need to reduce greenhouse gas emissions has driven the process as well.

30.   But Ford said it did not support stiffer fuel-economy standards or the international Kyoto Protocol on greenhouse gas emissions as ways to address the problem.

n. + emission >>共 118
gas 24.23%
greenhouse 22.38%
carbon 5.57%
auto 3.53%
vehicle 3.16%
exhaust 3.06%
tailpipe 2.69%
mercury 2.32%
oxide 1.76%
nitrogen 1.76%
greenhouse + n. >>共 90
gas 57.20%
emission 25.91%
cut 0.75%
target 0.75%
experiment 0.75%
problem 0.75%
tomato 0.65%
pollution 0.43%
limit 0.43%
reduction 0.43%
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