In this capacity, they facilitate contact between top experts in environmental fields and the organizations that require their services. But the real eye-opener is the 'dynamic output' function that rapidly replaces one year's pyramid with the next for the whole time series, allowing researchers to see a 'movie' of the trend of the population pyramid. For many countries, this resource will be more valuable as a tool of population projection than population history, and users should note that raw number scales are used. General mailing list and netiquette background is also provided. Missing from this site is Library Hotline, which in the printed version often provides the best tidbits.
Users can also search for magazines and journal articles and newspapers.
The organization sponsors a variety of programs including an annual educational conference and a number of technical workshops and publishes the peer reviewed Journal of Environmental Health. Information is also provided about the associations four credentials, the Registered Environmental Health Specialist, the Environmental Health Technician, the Registered Hazardous Substances Professional, and the Registered Hazardous Substances Specialist. The page offers links to related articles and publications and to corporate settlements involving ergonomic injuries. The current issue contains articles on the construction of Internet 2, video conferencing, and wireless technologies. The report discusses the collection of personal information, privacy policies, and browser cookie use at these sites.