The UNESCO-led World Water Development Report 4 aims to encourage all stakeholders both in and out of the water box - water managers, leaders in government, civil society and businesses ? to engage early in decision making processes to improve the quality and acceptance of decisions and the probability of successful implementation. It highlights that more responsible action by all water users has enormous potential to lead to better outcomes - but requires political, social, economic and technical responses at all levels of government, businesses and communities, from local to international.