VIII 



PREFACE 



that best balances economic and environmental con- 

 cerns in a given situation will be facilitated by such 

 discussions. The emphasis of future meetings should 

 differ from this one since the economic and environ- 

 mental problems that industrial nations face continue to 

 evolve vi^ith our changing world. 



J. H. Thorp 

 J. W. Gibbons 

 Editors 



