The present paper reproduces with some minor modifications the text of the
explanatory notes that accompany a set of two maps co-published in 1999 hy
the Commission for the Geological Map of the World and ANDRA entitled: Maps
of the World Environment during the last two Climatic Extremes (I. The Las
t Glacial Maximum - ca 18,000 +/- 2,000 yrs B.P., 2. The Holocene Optimum -
ca 8,000 +/- 1,000 yrs B.P.). A reduced version of these two maps, origina
lly printed at the scale of 1:25,000,000, each one in two sheers, is presen
ted here. They propose a reconstruction of the paleoenvironments of the wor
ld at two important moments of the recent past climatic evolution and provi
de useful geological data for refining climatic models and examining, from
different angles, the evolution concerning the regions and sites under stud
y.