Use available data

'Use available data' is a frequent requirement when asked to prepare an environmental statement. In this article, I suggest areas where we can improve our use of existing data or information to answer some current environmental protection and management questions but I also draw attention to areas where targeted research and acquisition of new field data is required. I counsel those who commission work not to expect too much of available information and to ensure that properly managed field investigations and experimental studies continue to be undertaken. (C) 1997 Elsevier Science Ltd.