The management of water resources in Bangladesh involves a centralised, heavy engineering approach in order to control floods and install irrigation, however, there is now a pressing need for ensuring social justice and equity in water resource development. Recognising the role of water in poverty alleviation, action has been taken to implement a 25-year National Water Management Plan. Although this is one important step, it is evident that many issues require more work.
With the collapse of the USSR, the water sector seized to be subsidised leading to deterioration of basic infrastructure. Action was taken to partially transfer the responsibility for operation and maintenance of irrigation systems to water users. Nonetheless, this has had limited success because it has been seen as an additional cost rather than benefit. This illustrates that for this to work, the returned benefits need to be higher than the costs.
Steadily shrinking for decades due to unsustainable irrigation policies, the Aral Sea is under increasing pressure, making both allocation and availability major challenges. Action has been taken and the Basin Economic Allocation Model has been developed as a long-term decision support system to facilitate putting “value on water use”. This demonstrates that economic models can be applied to assess economic value maximization of different water uses.
Fragmented data collection made processing, use and interpretation of data challenging. To attain a more uniform data collection, the State Water Cadastre was initiated, designed to collect data on surface and ground waters, water users, water quality and water quantity. Through the implementation of this programme, data was more easily available and also provided for more accurate response to environmental challenges.
For many businesses, issues of water scarcity are becoming increasingly relevant to their activities, manifested as increased costs or difficulties to obtain water as users compete for rights. To understand water dependencies in time and space, many companies apply the measure of water footprint, estimating water use throughout the value chain. Using this measure can give important insights into variation between countries in terms of how much of the water relates to production.
To supply water to a growing population, an aqueduct was built in the watershed of El Limón River in Tovar municipality. However, this aqueduct does not provide sufficient supply, creating conflicts among the communities. To solve these, agreements on the use and conservation of water resources have been made among the communities, involving both rural villages and urban areas. This illustrates the benefits of a participatory approach.
In Carabobo State, the urban and agricultural expansions are the main causes of watershed problems resulting from degradation of forests, deforestation and inadequate solid waste management. Since 2009, action has been taken to combat these developments through participatory public policies which focus on environmental education and sustainable development. The key to the success of the project has been extensive capacity building in combination with concrete management tools.
The quality of groundwater recharging the Guarani aquifer is threatened in some areas by rapid land-use changes, and locally by rapid urbanisation. Action was taken by the World Bank through a GEF-funded project on the ‘Sustainable Development & Environmental Protection of the Guarani Aquifer’, which included scientific studies, institutional provisions and transboundary groundwater management. This case study reinforces the lesson to ‘think globally but act locally’.
The Municipality of Talcahuano because of rapid urbanisation is subjected to natural resource degradation. Action was taken and a municipal strategy was created, assigning the municipality as the institution in charge of administering and combating natural resource degradation. This case illustrates the appropriateness of the municipal level of government in successfully addressing the recovery of water resources and environmental management.
The Toledo River basin is increasingly contaminated due to unsustainable agricultural practices, Action was taken through a UNESCO-IHP project aiming to perform an integrated environmental assessment of agricultural and farming production systems located in the Toledo River Basin. By using a multi-criteria approach, it was possible to highlight the interactions and use of natural capital, human-driven resources, and ecosystem services supporting agricultural and farming production systems.