Recent years have seen a rise in information-based environmental policies. This report focuses on a type of voluntary, information-based environmental policy – air quality alerts – by summarizing the recent research and contributing new findings.

The controversy over the Clean Air Act is worth understanding because it reveals a pivotal development that EPA and the environmental groups would prefer to conceal: the 40-year-old act is no longer a sensible way to regulate large-volume conventional air pollutants such as ozone and particulate matter.

Samuel Thernstrom testifies at a congressional hearing on the EPA's response to air quality issues in the aftermath of September 11, 2001.

AEI is pleased to host a panel discussion to weigh the pros and cons of hydraulic fracturing, a technology that--depending on which side of the debate you fall on--is either our saving energy grace or a troubling new threat to environmental quality.

This volume covers seven major indicators of environmental progress, including air quality, energy, climate change, water quality, toxic chemicals, forests and land, and biodiversity.

In this briefing Steven F. Hayward, F. K. Weyerhaeuser Fellow at AEI, will discuss the findings of the seventh edition of his annual report on environmental trends and conditions, the Index of Leading Environmental Indicators 2002 (Pacific Research Institute). He will present an overview of long-term environmental trends, citing government...

Improvements seen across key environmental indicators should be cause for celebration this Earth Day, according to Steven F. Hayward, Ph.D., author of the new book "Almanac of Environmental Trends."

On the one year anniversary of the BP oil spill and a few days before Earth Day 2011, AEI presents scholar work on environmental issues.