11.   The European Parliament on Wednesday backed a European Union proposal for new standards aimed at reducing aircraft noise and pollution caused by fuel emissions.

12.   The European Union officials Tuesday hailed an agreement to introduce stricter controls on vehicle fuel emissions as an important step in the fight against air pollution.

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%
fuel 1.11%
fuel + n. >>共 571
price 11.94%
cost 5.29%
economy 5.03%
shortage 3.83%
depot 3.72%
supply 3.60%
efficiency 3.04%
tax 2.50%
standard 2.35%
consumption 2.27%
emission 0.26%
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