Post a comment on the text below

Given the close link between water and ecosystems combined, and with the added emphasis on resilience and vulnerability, it is essential to develop a good understanding of the water resources systems that are characterised by natural variability and, in particular, the water demand as well as the magnitude and frequency of extreme events (see also (EEA (report under preparation) 2012b), section 3.3). Of special concern is the impact of environmental change (climate change, land-use management, and urbanisation) on these aspects of the hydrological cycle and how they might affect social and environmental systems.