81.   The uncertainty also complicates the task of negotiators from around the world as they struggle to determine how much and how rapidly greenhouse gas emissions should be cut.

82.   There was also disagreement over the issue of rich nations buying special credits allowing increases in greenhouse gas emissions.

83.   These fuel savings also mean a sharp reduction in greenhouse gas emissions.

84.   They see big business scare ads warning that mandatory reductions of greenhouse emissions will force higher prices and unemployment.

85.   This group as a whole stands to benefit from controls on greenhouse emissions since its members put a premium on the more efficient use of energy.

86.   Those have much higher fuel economy, and thus lower greenhouse gas emissions.

87.   Trading in emission rights enables companies or countries to reduce greenhouse gas emissions either by outright cuts or by trading in excess reductions made by others.

88.   Two of the largest of them, China and India, have abundant reserves of coal, the most troublesome fossil fuel in terms of greenhouse emissions.

89.   We affirm the importance of flexible and cost-effective cooperative approaches to reducing greenhouse gas emissions, including by promoting the development and diffusion of beneficial technologies.

90.   Vehicles are graded on handling, acceleration, energy efficiency, greenhouse gas emissions and reliability.