In recent years, scientists who work for and advise the federal government have seen their work manipulated, suppressed, distorted, while agencies have systematically limited public and policy maker access to critical scientific information. To document this abuse, the Union of Concerned Scientists has created the A to Z Guide to Political Interference in Science.  

From air pollution to Ground Zero, the A to Z Guide showcases dozens of examples of the misuse of science on issues like childhood lead poisoning, toxic mercury contamination, and endangered species.  

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The United States government bears great responsibility for keeping our environment clean and Americans healthy and safe. And while science is rarely the only factor in public policy decisions, this input should be objective and impartial.

As the list of examples of political interference in science and the concern from government scientists grows, so has concern from the general public, public interest groups, members of Congress, and the media.

Particular concern comes from the scientific community, as scientists know first hand that a strong investment in independent science has served as the foundation of American prosperity and contributed greatly to our quality of life. More than 12,000 scientists of all backgrounds from all 50 states—including 52 Nobel Laureates—have signed a statement denouncing political interference in science and calling for reform. If you are a scientist, you can add your voice to the statement right now.

The A to Z Guide features examples of political interference in science from 2001 to 2007. Some of the examples are taken from two investigative reports issued in 2004.