The nation's worst polluter, the U.S. Department of Defense (DOD), is refusing to sign enforcement agreements with the U.S. Environmental Protection Agency (EPA) that require DOD to clean up polluted sites nationwide. The military bases covered by EPA's enforcement orders may endanger public drinking water supplies as a result of the military dumping toxic pollutants at the sites.

A House panel recently examined efforts by the U.S. Environmental Protection Agency (EPA) to study human exposure to, and toxic effects of, common industrial chemicals. EPA is not assessing enough chemicals and is taking too long to complete the assessments it does undertake, lawmakers said. Witnesses complained that without rigorous scientific studies as a foundation, federal and state agencies cannot set air and water quality standards that protect public health.

The U.S. Environmental Protection Agency's (EPA) new, stricter national air quality standard for ozone is being challenged in multiple court actions, all of which are asking a federal appeals court to review the final rule. Although the new standard, announced March 12, is an improvement over the previous standard, environmental groups, state and local governments, and business interests all have filed lawsuits hoping to force the EPA to reconsider its decision.