Scientific and estuarine research on the Chesapeake Bay pinpointed several areas that required attention including nutrient over-enrichment, dwindling underwater Bay grasses, and toxic pollution. Action was taken and the Chesapeake Bay Commission was established to address the issues. This case illustrates how the use of modelling can be a cost-effective tool in helping to implement watershed restoration actions and monitor goals set by stakeholders.
Activities such as horticulture and tourism around the Great Barrier Reef create sediment, nutrient and pesticide runoff, placing increased pressure on the ecosystem. The World Wildlife Fund has taken action, predominantly by raising awareness. The key lesson is how a carefully orchestrated campaign can convince decision-makers of the importance of integrated river basin management as a means of reducing land-based marine pollution.
Unsustainable irrigation policies during the Soviet era have had devastating consequences for the Aral Sea. With the collapse of USSR, the riparian states took action and entered into agreement on Cooperation in the Joint Use and Protection of Water Resources of Interstate Significance. Furthermore, the international community took action and much attention has been devoted to re-establish the Aral Sea ecosystem. This case illustrates the importance of engaging all key stakeholders.
Oil-shale mining and oil-shale based electricity production has caused serious damage to ground and surface water in the Viru-Peipsi catchment area in Estonia. Action was taken to enhance the protection of the water resources through a project that set out a management plan. The project included data collection, monitoring and capacity building. Due to the success of this project, it can be used as an example for future developments.
After some devastating floods in the Yangtze, the Chinese government took action and issued a policy to counter floods, including wetland restoration. WWF further assisted and developed four pilot sites to demonstrate the benefits of wetland restoration for biodiversity, and to seek alternative income options for farmers, based on the sustainable use of wetlands. This case illustrates the value of a participatory approach.
The district of Tikamgarh has faced severe water scarcity. Action was thus taken to implement concrete measures to restore the water bodies in the surrounding area. Together with relevant stakeholders, the district administration initiated and implemented the project. The key lesson to draw from this case is the need for the participation by all relevant groups.
In Central Asia, water is unevenly distributed with states positioned downstream being placed in a very unfavourable position. The situation is further complicated since the benefits from cooperation are highly asymmetrical. Despite the challenge, the states have taken action and entered into a regional agreement, which attracted the international donor community to engage further. This case illustrates how international initiatives can influence institutional arrangements in transboundary basins.
Initial success resulted in the joint forest management strategy in Sukhomajiri being expanded. Unfortunately the successes of the original project were not replicated and the scaling-up efforts ended in rapid siltation. This has led to a discussion of possible IWRM implementation in the area. The key lesson learnt from this case is the importance of community involvement for successful community activity implementation.
The Chilika Lagoon was subjected to environmental degradation. Action was taken by the Chilika Development Authority through the application of GIS and remote sensing tools for monitoring and assessment of the lagoon, resulting in significant improvement of the ecological health of the lagoon. The key lesson learnt is how a clear understanding of the coastal process and the river basin is essential for restoration of a coastal wetland.
In the River Basin District of the CEE region, the countries are cooperating to develop transboundary management, using the International River Basin Commission as a platform. The aim is to address national IWRM priorities, strengthen cooperation with major stakeholders and initiate changes in policies and legislation. This case illustrates the difficulties to balance national priorities in a transboundary context.