Online scientific reference resource with more than 8500 encyclopedia articles, over 115,000 definitions, and suggestions for further study on specific topics
Focuses on the physical, social, and economic aspects of environmental issues. Topic, organization, and country portals form research centers around issues covering energy systems, health care, agriculture, climate change, population, and economic development. Portals include authoritative analysis, academic journals, news, case studies, legislation, conference proceedings, primary source documents, statistics, and rich multimedia.
Website developed by the American Association for the Advancement of Science that provides a forum for science news from universities, medical centers, corporations and research institutes.
"Scientific American, the longest continuously published magazine in the U.S., has been bringing its readers unique insights about developments in science and technology for more than 170 years."[from publisher's site]