P739 CEJFAX 739 Fri 6 May 21:12/24 1/2 Diary -DAMES BARRIER Tenth anniversary celebrations May 8 PROTJCTJON OF RURBL ENGLAND Launches report on impact of changing leisure patterns on the countryside May 12 BRITISH RIVERS AND STREAMS David Bellamy announces results of three-9ear survey by young people May 17 LONDON ZOO EXTJNCTJON EXHIBITION May 28 5-,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,.P739 CEEFAX 739 Fri 6 May 21:11/48 2/2 DIARY INTERNATIONAL WHALING COMMISSION Meeting at Pujrto Vallarta, Mexico May 23 - 27 NATURBL DISASTER REDUCTION World conference in Yokohama, Japan May 23 - 27 EU AGRICULTURE MINISTERS COUVCIL Meeting in Brussels May 30 -31 GLOBAL WBRMING CONFERENCE Royal Geographical Society May 31 Environment Index is on - page 730