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Royal Society - David Keith

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Cover image from DaisyBall model, by Ginger Booth, http://gingerbooth.com, Copyright © Yale University 1997–2008. The cover<br />

image comes from the Daisyworld model developed by Dr. James Lovelock and Professor Andrew Watson, both Fellows of the<br />

<strong>Royal</strong> <strong>Society</strong>. This conceptual model illustrates the tight coupling between climate and the biosphere through the connection<br />

between surface reflectivity and temperature—white daisies reflect more and absorb less solar radiation than do dark daisies<br />

thereby keeping the Earth cooler. This is the principle on which Geoengineering by the reflection of solar radiation is based.<br />

Daisyworld has been instrumental in drawing attention to the tight link between the Earth’s surface climate and the presence<br />

of living organisms. See: Watson, A. J. and Lovelock, J.E. (1983). Biological homeostasis of the global environment: the parable<br />

of Daisyworld. Tellus 35B, 284–289.

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