The National Climatic Data Center of the National Oceanic and Atmospheric Administration (NOAA) has made available the Climate of 2002 Preliminary Annual Review Web site. Visitors will find numerous charts; graphs; tables; and descriptions of global temperatures, temperature trends, regional temperatures, and global precipitation. A US climate summary, as well as information on significant events,...

This topic in depth begins with the About Temperature (1) Web site, written by Beverly T. Lynds of Unidata, which is a program that works to enable university researchers and educators to acquire and use atmospheric and related data. The one-page site explains what temperature is, the development of thermometers, heat and thermodynamics, and other related topics. The second site is maintained by...