The East Asian Seas Regional Task Team on the Implications of Climate Change comprised scientists from within the region. At its two meetings in May and November of 1989, team members discussed their findings which led to this report. Emphasis was focused on the 5 countries of the region which participate in the Regional Seas Programme (Indonesia, Malaysia, Philippines, Singapore and Thailand) although other countries within the region have been considered in some of the chapters. The team worked to a scenario of a mean global atmospheric temperature rise of 1 .5°C and corresponding sea level rise of 20cm by the year 2025. Case studies in this report appear either as individual chapters or are incorporated within chapters.