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Comments on the debate over the application of cost-benefit analysis in formulating air pollution rules in the U.S. Citation of the scheduled hearing of the U.S. Supreme Court over challenges to the Clean Air Act manifested in the lawsuit filed by the American Trucking Association Inc. against the U.S. Environmental Protection Agency; Assertion on the impracticality of regulations designed to reduce smog-causing ozone and soot; Discomfort of legislators over placing monetary values on human life; Prevalence of the uneven application of environmental rules.

The article looks at the health hazard posed by ozone smog and related European and U.S. regulations. The author says that while the European Union ozone limit appears lower than that under U.S. law, when definitional differences between the laws are taken into account the U.S. law may be more stringent in practice. Topics include how ozone smog occurs and the proposal of the U.S. Environmental Protection Agency (EPA) under U.S. President Barack Obama to strengthen U.S. ozone regulations.

Reports on federal ozone standards, and measures being taken to ensure cooperation with them. Constraints on the expansion of polluting industries; Requirement that states deliver clean air plan to the Environmental Protection Agency by 2007; Risk of losing federal transportation funding; Effect of the creation of tighter rules for ozone, the main element in smog, on traffic-challenged areas like Raleigh-Durham-Chapel Hill, North Carolina.

The article discusses a policy of U.S. President Barack Obama in reducing environmental standards. Topics include air pollution standards by the Environmental Protection Agency (EPA), regulation by former President George W. Bush, the reaction of U.S. Republicans and green activists to the policy, and the struggle for Obama to deal with climate change.

The article discusses the court case Environmental Protection Agency (EPA) v. EME Homer City Generation wherein the U.S. EPA adopted the Cross-State Air Pollution Rule. The Supreme Court held that the EPA's allocation of emission reductions is permissible and equitable interpretation of the Good Neighbor Provision. Also explained is the "good neighbor rule" in the Clean Air Act.

The article reports on the final rule issued by the U.S. Environmental Protection Agency (EPA) in June 2011 that requires certain types of industrial facilities that emit greenhouse gases (GHGs) to secure Clean Air Act permits. The rule will satisfy the law's requirements to determine which sources are subject to such permits for prevention of significant deterioration (PSD). It will be effective starting August 2. Since January 2, PSD and title V standards apply to GHG.

The article reports on the proposal of the U.S. Environmental Protection Agency (EPA) to loosen the restrictions of Clean Air Act. EPA proposes that companies updating their facilities be allowed to bypass the federal air permits prior to any upgrade. Some state regulators fear that the proposed rule will give industries more resources to avoid scrutiny.

The article looks at global warming policy in the U.S. According to the article, Election Day in November 2006 propelled global warming to a top-tier issue on the nation's agenda for action. A Zogby survey found that a majority of voters said that the U.S. Congress should pass legislation promoting renewable and alternative energy sources as an effective way to reduce global warming pollution. A coalition of states have challenged the Environmental Protection Agency's failure to regulate carbon dioxide as required under the Clean Air Act, taking the case to the Supreme Court. The article comments on the National Wildlife Federation's commitment to working with Americans and elected officials to save wildlife and future generations from global warming.

The article reports on the air quality standards for soot released by the U.S. Environmental Protection Agency (EPA). On its air quality standard for soot, EPA reduced the allowable amount of fine particles, averaged over 24 hours, but did not tighten the annual average for soot as recommended by the Clean Air Scientific Advisory Committee. Environmental groups criticized the new standards as inadequate.

The article comments on the clean-air regulations issued by the U.S. Environmental Protection Agency (EPA). According to a report that was released by the National Research Council, the accuracy of the EPA regulations exceeds current modeling capabilities. The net differences in emission levels between the highway build and no-build scenarios are smaller than the error terms of those models. The EPA uses unreliable data to rule against the decisions of state and local representatives. It claimed that its complex modeling of airsheds can explain the impact of different kinds of construction on automobile emissions.

The article reports on the support of the National Pork Producers Council to the U.S. Environmental Protection Agency's (EPA) approval of air consent agreement which protect animal feeding operations from EPA enforcement actions. All livestock producers who signed the agreements will be exempt from past air emission violations and from potential infractions over the next four years.

Focuses on the changes in the Clean Air Act New Source Review program made by the U.S. Environmental Protection Agency (EPA) as of October 2004. Reaction of environmental groups to the changes; Position of EPA Inspector General Nikki Tinsley on the impact of the changes on air quality in the U.S.; Implication of the changes for the agency's Office of Enforcement and Compliance Assurance.

Reports on the implementation of the new Clean Air Act diesel engine standards by the Environmental Protection Agency in the U.S. Deadline for engine manufacturers to introduce cleaner diesel engines; Aim to reduce the nitrogen oxide emissions per year; Plan to conduct early prototype testing with trucking customers.

Introduces the new Maximum Achievable Control Technologies (MACT) rules to complete the the MACT standard rulemaking process by the Environmental Protection Agency in the U.S. Impact of the new rules on certain industries; Completion of the series of technology-based national emissions standards under the 1990 Clean Air Act Amendments; Directives and scope of the new MACT rules.

Reports that chlor-alkali chemical manufacturing facilities using mercury cells must meet tougher air pollution standards for mercury under a rule issued by the U.S. Environmental Protection Agency. Objective of the regulation; Provisions of the new Clear Air Act; Assurance that the law will have no significant impact on the market for products made using chlorine or sodium hydroxide.