Below are the first 10 and last 10 pages of uncorrected machine-
read text (when available) of this chapter, followed by the top
30 algorithmically extracted key phrases from the chapter as a
whole. Intended to provide our own search engines and external
engines with highly rich, chapter-representative searchable text
on the opening pages of each chapter. Because it is UNCORRECTED
material, please consider the following text as a useful but
insufficient proxy for the authoritative book pages. Do not use
for reproduction, copying, pasting, or reading; exclusively for
search engines. OCR for page 50 6 HISTORICAL PERSPECTIVES:
CLIMATIC CHANGES THROUGHOUT THE MILLENNIA John E. Kutzbach We
are here to consider the prospects of global change and our
common future. Our aim is to look forward. I want to share with
you some per- spectives about global change that we can gain
from first looking back- ward to our common past. Why is it
important to look backward first? The first reason is that the
global changes that may