The U.S. Environmental Protection Agency (EPA) has internships available, including opportunities for economics majors and other social scientists. Here is text from the announcement being circulated:

The Oak Ridge Institute for Science and Education (ORISE) has several research projects available at the U.S. Environmental Protection Agency (EPA).

These projects provide opportunities to participate in ongoing research activities at various EPA offices and locations. Qualifications, appointment location and appointment length vary depending upon the project. Participants will receive a stipend depending on educational level and research experience.

The ORISE Research Participation/Internship Programs at the EPA are designed to provide a flow of scientists and engineers into the EPA to participate in current research and development activities and studies, and related projects. In addition, the program links the EPA’s technologies with the capabilities of the academic community.

Check http://orise.orau.gov/epa/ for details and the application.