31.   Hotter weather, in turn, is widely believed to be brought on by carbon emissions from burning fossil fuels.

32.   Oil companies such as Chevron and BP Amoco, fearing future regulation on carbon emissions if global warming increases, are beginning to assist.

33.   Overall, the study found that a limit on carbon emissions as envisioned in the current version of the treaty will shift production to developing countries.

34.   That is expected to continue, at least until countries that ratify the Kyoto accords put large taxes on carbon emissions.

35.   The Clinton Administration is counting on such clever low-cost solutions as it tries to negotiate a limit on carbon emissions.

36.   The conference is writing a worldwide treaty on carbon fuel emissions that will be signed in Kyoto, Japan, in early December.

37.   The Midwest relies on ethanol to satisfy a federal requirement to cut down on carbon onoxide emissions.

38.   The next step, to hold down carbon emissions, is to make the best use of the electricity.

39.   The researchers would set limits on total carbon emissions and parcel out rights to emit that could be traded between businesses and perhaps countries.

40.   The pricing changes were undertaken for economic reasons, not environmental ones, the report said, but the effect on carbon emissions was the same.

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%
carbon + n. >>共 148
emission 11.52%
atom 8.45%
tax 5.76%
steel 3.84%
content 3.26%
nanotube 3.26%
molecule 2.88%
credit 2.50%
sink 2.50%
filter 2.30%
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