This primer updates a 2005 report by the National Center for Charitable Statistics at the Urban Institute, The Broader Movement: Nonprofit Environmental and Conservation Organizations, 1989–2005. The 2005 report provided the first quantitative investigation of the broader environmental and conservation movement, based on data from the Internal Revenue Service (IRS) tax files.
This new primer updates this broad analysis of environmental nonprofits to 2008, the latest year for which IRS data is complete.