Therefore, it is necessary to use indexes in order to find journal articles. The DCIS list of digital collections by title or category will guide you to many of these indexes and to other files such as the Dictionary , Encyclopedia , World Factbook , Weather Info , the AP Photo Archive , and Biographies . They often contain references to other books and articles which can be used for further research. World Factbook Brief descriptions of current conditions, transportation, economy, geography., plus a map. Provides an overview of water supply and quality issues, with many statistical tables and charts.
Science Covers environmental topics such as climate change.
A great source for statistics on just about anything. All Libraries HA202. Statistical Universe , provides access to national and international statistics. It includes an option to search the CIS American Statistics Index, the Statistical Reference Index, and the Index to International Statistics. Journal articles provide in-depth information, and usually have extensive lists of additional references that you can use to find more information.