Periodically HEI analyzes and interprets the scientific issues pertaining to a specific environmental problem. The results of these analyses are published in HEI Special Reports, which are prepared by expert panels appointed by the HEI Board of Directors and assisted by HEI scientific staff. The reports are then peer reviewed independently by outside experts in the area of knowledge being covered by the report. HEI Special Reports have been used widely by the scientific community and by government officials in deliberations regarding public policy. Read more about HEI’s processes for Special Reports.