The World Health Organization works in a number of public health areas, and their work on quantifying environmental health impacts has been receiving praise from many quarters. This site provides materials on their work in this area and visitors with a penchant for international health relief efforts and policy analysis will find the site invaluable. Along the left-hand side of the site, visitors will find topical sections that include "Methods", "Assessment at national level", "Global estimates", and "Publications". In the "Methods" area, visitors will learn about how the World Health Organization's methodology for studying environmental health impacts has been developed and they can also read a detailed report on the subject. The "Global Estimates" area is worth a look as well, and users can look at their complete report, "Preventing Disease Through Healthy Environments: Towards An Estimate Of the Global Burden Of Disease".