In this issue's Special Section we offer the second part of a group of studies dealing with the impact of climate change on ancient Maya civilization. As mentioned in the Introduction to the first part (Fowler 2002), Mayanists have been aware of the possible effects of climatic factors on Maya culture since the early decades of last century. At first, comments on the effects of climate change in the Maya area were largely speculative. By the 1980s such work became increasingly compelling and sophisticated, including correlations of worldwide glacial, palynological, and other climatological data, as reflected in several publications (Dahlin 1983; Folan et al. 1983; Gunn and Adams 1981). Soon after, Lewis Messenger provided a broad global correlation with specific reference to archaeological sequences in Mesoamerica and the Maya area (Messenger 1990). Perhaps it would be fair to say that Maya paleoclimatological studies may have peaked with the massive work of Richardson Gill (2000), which has attracted much critical attention. David Webster (2002:241–247), for example, praises the book for its directness and clarity of purpose but expresses skepticism about the climatological bias and stresses that much more research is needed.