<p>Pages 249-267 in G. Cederlöf and M. Rangarajan (editors), 'At Nature's Edge: The Global Present and Long-Term History,' Oxford University Press, New Delhi. 331 pp.</p>
<p>Pages 249-267 in G. Cederlöf and M. Rangarajan (editors), 'At Nature's Edge: The Global Present and Long-Term History,' Oxford University Press, New Delhi. 331 pp.</p>