Preface; Criteria for evaluation; Summary report on the survey; Follow up: agenda 21; 1. General environmental concerns A. C. Kiss and P. Hassan; 2. Nature conservation and terrestrial living resources M. J. Forster and R. U. Osterwoldt; 3. Atmosphere and outer space R. E. Benedick and R. Pronove; 4. Marine environment and marine pollution A. E. Boyle, D. A. C. Freestone, K. Kummer and D. M. Ong; 5. Marine living resources A. Szekely and B. Kwiatkowska; 6. Transboundary freshwaters G. J. Cano; 7. Hazardous substances W. F. Jones and M. D. Yeater; 8. Nuclear safety M. R. Mazzanti; 9. Working environment V. A. Leary; 10. Liability for environment damage G. Doeker and T. Gehring; 11. Environmental disputes P. N. Bhagwati; 12. Sample bilateral instruments A. Borg Olivier; 13. Relationship between environmental agreements and instruments related to trade and development J. O. Cameron, T. Mjolo-Thamage and J. C. Robinson; Annex.