The term "political science" used to mean public policy studied not just as opinion but based on empirical, documentable evidence. Today it's come to mean something darker--the subversion of science in the hands of ideologues committed to manipulating public policy to their end. This new, and disheartening use of the...

What caused thelarge rise in asthma?One hypothesis is that people no longer get as many infectionsin childhood,making them more susceptible to allergic diseases such as asthma.

To better understand the determinants of health spending, it is important to distinguish spending on chronic health conditions from spending on patients with chronic health conditions.

Even air pollution levels far higher than any we experience in the United States are perfectly safe. Thenation's air does not cause adverse health effects.

Where has national ozone policy gone wrong, and how can we acheive healthy air at a far lower price?

The findings in Digging Up Trouble by the Union of Concerned Scientists are unreliable and based on flawed methodology and analysis.

TheEnvironmental Protection Agency's proposalto tighten ozone regulation poses a significant risk of public harm with little reason to expect much in the way of benefits.

This edition of the Index reveals that environmental quality continues to improve in many key areas, including air pollution, mercury emissions, wetlands, and forestlands.