1. Madronich, S., et al., Changes in biologically active ultraviolet radiation reaching the Earth's surface. Journal of Photochemistry and Photobiology: B Biology, 46, 5 (1998).

59 Only about 15 species of plants provide a great majority of the calories consumed and 75 percent of the world's protein consumption. In addition to the key cereals, sugar cane, sugar beet, sweet potato, cassava and soybean fall into this category. Clearly it is important to establish the effect of UV-B on the productivity of these species under different growing conditions.

60 A 25 percent depletion of the ozone layer and the ensuing increase in UV-B reaching the surface of oceans was estimated to reduce phytoplankton productivity by as much as 35% [12].

4. Dolin, P. J., Br. J. Opthalmol., 78, 178 (1994).

5. De Gruijl, F. R., Skin Cancer and Solar UV Radiation. Eur. J. Cancer, 35, 2003 (1999): S. Madronich and F. R. de Gruijl, Nature, 366, 23, (1993). Van der Leun, J. C. and F. R. de Gruijl, Influences of ozone depletion on human and animal health. Chapter 4 in UV-B radiation and ozone depletion: Effects on humans, animals, plants, microorganisms, and materials, ed. M. Tevini, 95-123. Ann Arbor: Lewis Publishers, (1993).

6. Robinson, J. K., Archives of Dermatology 126, 477, (1990).

7. Teramura, A. and N. S. Murali, Environmental Exp. Botany, 26, 89 (1986).

8. Nouchi, I., K. Kobayashi, and H. Y. Kim, J. Agric. Meteorol., 52, 867 (1997).

9. Hader, D.-P., Ecosystems, Evolution and Ultraviolet Radiation, ed. C. S. Cockell and A. R. Blaustein, New York: Springer-Verlag. (2001). p150.

10. Gieskes, W. W. C. and A. G. J. Buma, Plant Ecology, 128, 16 (1997).

11. Hermann, H., et al., J. Photochem. Photobiol., 34, 21 (1996).: J. J. Cullen and P. J. Neale, Photosynthesis Research, 39, 303 (1994).

12. Smith, R. C., Baker, K. S., Holm-Hanson, O. and Olson, R., Photochem. Photobiol. 31, 585 (1980).

13. Chapman, J. and Hardy, J. T. (1988). Effects of middle ultraviolet radiation on marine fishes Final Report Oregon State University US EPA Coop. Argrmt. CR-812688-02-0.

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