AEI's annual Earth Day checkup will celebrate the 10th edition of the PRI/AEI Index of Leading Environmental Indicators and feature analysis of recent trends and developments in the environment by AEI's entire "green team" of scholars and fellows who work in the field. The Index examines government data on numerous environmental conditions in the United States, most of which show consistent improvement. This year's edition devotes special attention to the growing interest in corporate environmental reporting, and will also offer comparisons of U.S. environmental trends with trends in European Union nations.

Mr. Hayward, the principal author of the Index, will be joined by AEI resident fellow, Karlyn H. Bowman, who will present findings from her ongoing work on public opinion on the environment; Roger Bate, an expert of environmental issues in the developing world; Samuel Thernstrom, who writes for AEI on climate change and other issues; and AEI's Ted Gayer, an expert on environmental policy and government regulation of health and safety risks.