EnDic2004 is a new revised and extended edition of EnDic2000. Some 1500 new terms and two new languages have been added. The total number of searchwords in various languages amounts now to 80000. About one third of the entries are furnished with definitions in English, Estonian and Finnish. EnDic2004 covers a wide field of environmental protection and nature conservation – e.g. from such fields as meteorology, hydrology, environmental engineering, water supply and wastewater treatment, waste management, and the environmental policy of EU. The dictionary is an excellent tool for scientists, students, translators and others whose work has an international dimension. Funded by the Finnish Environment Institute (SYKE) and the Ministry of Environment. Published by SYKE.