Water resources in Spain play a crucial role in the social and economic development of numerous sectors and territories, and in guaranteeing the good condition of many ecological systems.
Spain’s water resources are highly sensitive to climate change, and the impact is even greater in arid or semi-arid areas, which abound particularly in certain water basins where reductions in water resources of up to 30% are forecast for the end of the 21st century.
The area of the Eferdinger Becken, Upper Austria, is a small area that lies on the Danube. It has no protection against floods with a 100-year return time: the flood-prone area includes about 154 houses that flood regularly. Due to the importance of the retention space for the discharge and the difficult technical feasibility, passive flood protection was considered as more suitable. Homeowners needed to decide on relocation by the end of 2015. The federal and the regional governments compensate citizens 80% of the value of the house if they agree to move.
Normally a shallow river, the White Cart Water was prone to flash flooding. Its water levels can rise by six metres after just 12 hours of rain, which threatened vulnerable Glasgow suburbs downstream. Public awareness of such flooding risks in the 1980s and 1990s, and projections of more intense periods of rainfall made devising a flood prevention scheme a priority for the Glasgow City Council.
Kristalbad is an area of about 40 hectares located in the east of the Netherlands between the cities of Enschede (160.000 inhabitants) and Hengelo (81.000 inhabitants). This is one of the last remaining green areas between these two cities, playing a role for ecosystem-based adaptation to cope with potential climate change related impacts.
The densely populated River Lavant valley region in the eastern part of Carinthia in the southern Austrian Alps is characterised by a low level of precipitation, geological conditions unfavourable to groundwater storage and a limited number of springs that can be used for water supply. In the past decades, annual precipitation amounts have declined significantly, and the region has been affected by water shortages during hot summers several times.
Isola Vicentina (Italy) signed the EU’s Mayors Adapt initiative (current Covenant of Mayors for Climate and Energy) in 2014 and since then started the elaboration process of its Municipal Water Management Plan (MWMP) in order to integrate climate change adaptation into its water management policies. For this purpose, Isola Vicentina Mayor engaged the “Planning Climate Change” research group at the IUAV University of Venice and Green-Dev studio, a local consultancy firm.
In 2000, the governments of Bulgaria, Romania, Ukraine and Moldova pledged to work together – with the signing of the Lower Danube Green Corridor Agreement - to establish a green corridor along the entire length of the Lower Danube River (~1,000 km). All partners recognized a need and shared responsibility to protect and manage the Lower Danube in a sustainable way.
The Ebro delta (Catalonia, Spain) and its coastal lagoons (Alfacada and Tancada) are vulnerable to the effects of climate change, particularly to sea level rise. In combination with sediment deficit due to river regulation and subsidence, sea lever rise can lead to exacerbated coastal erosion and retreat. Local management practices (e.g. intensive rice farming) have also affected the natural habitats and species of the delta, causing wetland loss and changes in salinity and water quality.
The Zaragoza Water Saving City programme was initiated in 1996 in response to water scarcity and is still on-going. It has included awareness raising campaigns, the implementation of examples of good practice of reduced water consumption and voluntary public commitments by citizens and businesses. The water tariffs were revised to provide disincentives and incentives that ensure a full cost recovery whilst maintaining affordability for low-income households. The programme also involved improvements to the water distribution infrastructure to reduce the waste of water.
The Netherlands is a country with a long history of mitigating flood damage and adapting to flood risk. With 60% of the country below sea level, the development and implementation of flood resilient infrastructure has become an important part of the Dutch culture. The flood threat in the Netherlands is not only related to rising sea-levels. Rivers also pose a risk of flooding. This risk is increased by climate change as it causes more frequent and extreme rainfall.