1.   Backing off a campaign pledge, President Bush tells Congress that he will not regulate carbon dioxide emissions from power plants.

2.   Defendants could be federal agencies like the Environmental Protection Agency or the Energy Department, for subsidizing the use of fossil fuels or accused of failing to regulate emissions.

3.   Missouri does regulate mercury emissions directly into water.

4.   Rep. Jay Inslee of Washington plans to remind runners racing on Sunday to protest global warming that Bush has reversed himself on a pledge to regulate carbon dioxide emissions.

5.   She said the trading system could replace five separate enforcement programs that regulate emissions on a plant-by-plant basis.

6.   The bill would regulate tailpipe emission of carbon dioxide, which many scientists believe is the chief contributor to global warming.

7.   The Environmental Protection Agency announced last month that it will begin regulating mercury emissions from power plants.

8.   There are alternatives, of course, like regulating emissions directly.

9.   While regulating smokestack emissions and expanding access to electricity in developing nations would be an expensive undertaking, it would also be a huge boon.

10.   With an automatic, the automaker can control the shift points of the engine and more closely regulate emissions.