Figure 3-4 for Sean Mewhinney's Minds in Ablation

Figure 3-4

Forest and grassland limits on the plains of North America and Eurasia about 2000 B.C. and at the present day.

(Sources used include FRENZEL (1966, 1967), NEISTADT (1957), and NICHOLS (1967a).)

Source: H. H. Lamb, Climate: Present, Past and Future (London & N.Y., 1977),
Vol. 2: Climatic History and the Future.

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Last modified by pib on October 28, 2003.