Weather and climate are always in flux, always changing. At times the changes can be sudden and dramatic, while on other occasions the changes are subtle and occur over long periods of time. What are the primary causes and effects of these changes? How do they relate to our everyday lives and to human history? These and other questions we explore in the Climate TimeLine. (See Site Features)

The Climate TimeLine uses a "powers of ten" exponential approach (see CTL Overview) to frame 1) meteorological and climatic processes (Climate Science) and 2) specific climate events of the past (Climate History) at varying timescales. Each timescale has its own collection of resources and links to more information. If you find Climte TimeLine helpful in learning about climate change and variability, consider submitting a review to the Digital Library for Earth System Education (DLESE).

Climate TimeLine has been cited for excellence in science education by the NSTA SciLinks program, Eisenhower National Clearinghouse, and GEsource, the geography and environment hub the RDN, a collaboration of over seventy educational and research organisations, including the Natural History Museum and the British Library.