The Global Forest Resource Assessment (FRA) is FAO's mechanism for regularly monitoring and evaluation of the state of the world's forests at the national, regional and global levels. A report has been published by FAO every five to ten years, each focusing on a different topic and presented in different formats. Following the publication of a report that criticized FAO's results by the World Resources Institute (WRI) - an International Non-Governmental Organization specializing in environment issues, both organizations have worked together since 2000. The WRI was invited to present its concerns at the FAO Forestry Committee meeting and to share information on their approach to forest assessment. This led to the adoption of a Memorandum of Understanding, establishing the inclusion of WRI in the Global Forest Resource Assessment process.