At the Earth Summit in Rio in 1992, over 150 nations signed the convention on biological diversity-a record by any standard. Since then, nearly 20 other states have signed the convention. Over 40 states ratified the convention in less than 18 months another record-so that the convention became International Environmental Law on 29 December 1993. Widening perspectives on biodiversity raises and discusses essential questions related to the convention on biological ...
