The Corporate Toxics Information Project analyzes and disseminates information from the US Environmental Protection Agency on corporate releases of toxic chemicals and the resulting exposures of communities to air and water pollution hazards. The Project aims to help community-based activists and socially responsible investors to translate the right to know into the right to clean air and water. The computational methods are wide-ranging, including: fate-and-transport modeling of point-source pollution from industrial facilities; analysis of spatial and socioeconomic data from the Bureau of the Census; and research on corporate structure. Professors Michael Ash and James K. Boyce direct CTIP at the Political Economy Research Institute, UMass Amherst.