00980cam a2200289 a 4500 1996064 OSt 20240715092943.0 900330s1990 dcu b 001 0 eng 90005939 8185336695 DLC DLC DLC GF75 .Si3 Silver, Cheryl Simon. One earth, one future : our changing global environment / by Cheryl Simon Silver with Ruth S. DeFries for the National Academy of Sciences. Washington, D.C. : National Academy Press, c1990. xiii, 196 p. ; 23 cm. Includes bibliographical references (p. 161-162) and index. Nature Effect of human beings on. Pollution. Global warming. Environmental policy. DeFries, Ruth S. National Academy of Sciences (U.S.) 7 cbc orignew 1 ocip 19 y-gencatlg lcc BK 0 1108 1108 0 0 lcc 0 0 REF GAFC GAFC GEN 2024-07-15 0 GF75 .Si3 2024-1766 2024-07-15 09:31:34 c.1 2024-07-15 BK