EPA believes its cap-and-trade rule is the best approach to protect public health by reducing mercury emissions from coal-fired power plants while maintaining fuel diversity and energy security.

We are committed to sharing our scientific studies with the public in the most comprehensive and understandable format possible. Issue experts are reviewing the fuel economy data and we look forward to providing a summary of the information next week.

For a smooth transition to the more protective ozone standards, it is essential that state and local governments work to meet one standard without losing progress. Asking states to meet two standards at once defies common sense and risks confusion and backsliding.

Is still reviewing the terms of the agreement, and once the agency completes its review and files it with the Environmental Appeals Board, the agreement will be announced.

While we did disclose it, we will go the extra mile to ensure there is no confusion.

It does a real disservice to this discussion to have an analysis that makes unfounded and inaccurate conclusions.

EPA has an extensive effort underway to determine the sources of PFOA, how the public is being exposed, and whether these exposures pose a potential health risk.

Even one child impacted by lead is one child too many, which is why we are working on the rule to ensure that children will not be exposed to unsafe levels of lead when their homes are being renovated.

Steve Johnson is a 25-year career scientist at the EPA, ... He is committed to doing the sampling and the testing and the cleanup and doing whatever needs to be done.