The deteriorating water quality of the Danube River and the ecological problems created by its continuing exploitation for electricity generation are major issues facing countries in the Danube River Basin. In response, representatives from the eight Danube riparian countries have recently declared their willingness to cooperate on the management of this important European river. In the absence of a comprehensive, basin-wide planning authority, this Danube Declaration is an important first step in establishing cooperative policies. Still, many hurdles remain before intentions become practice. This article describes the scientific and institutional complexities involved in negotiating agreements among the Danube riparian nations and suggests forms of cooperative action. A potential role for an independent analyst in the negotiation process is discussed.