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 Pantanoso watershed in Montevideo has been identified as vulnerable to threats of intense rains and floods, posing risks to the human settlements. To combat the risks, action was taken by the local population and governmental authorities to engage in a project on Climate Related Disaster Risk Management. The key lesson is that strengthening vulnerable communities upon climate risks represents a key tool for the IWRM, since it contributes to empowering the population.
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 legal and regulatory framework of water utilities in Peru provides opportunities for local financing of investments. Despite this, the sector remains heavily dependent on public financing. Action has been taken by the World Bank to initiate a study investigating the barriers to local private funding. This case study illustrates that public loans, private loans and equity investment are appropriate to fund the necessary investment.
In Chile, water has been privatised. However, in order to make sure that access was still available to all strata of society, the privatisation was accompanied by a robust regulatory framework, including a system of direct subsidies for drinking water consumption and sewage services for low income households. This case thus illustrates that in case of privatisation, a direct subsidiary scheme should be considered.
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.
A large proportion of Brazil’s population is lacking access to water and sanitation, and development is slow, in particular in rural areas due to lack of funds and political will, but also due to inefficiency in the resources allocation. Action has been taken by the State of Ceará to implement the model called Integrated Rural Water Supply and Sanitation System, illustrating that the most important component of attaining sustainable management is user participation.
The Eastern area of Tucuman province was faced with significant problems of contaminated water. Extensive research was done, involving universities, and a project was carried out, applying the aspects of IWRM within the areas of technical solutions, institutional arrangements of future water supply operation. This case study highlights the importance of conducting research prior to a project to attain sufficient information.
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.