EEA/NSV/10/002 – ETC/ICM Security implications of future water use in Western Balkans: challenge of hydropower development Risks and proposed management measures regarding explorative scenarios (Chapter 9) – final draft Date: 8 January, 2014 EEA activity: EEA West Balkan Cooperation ETC/ICM Water Prepared by / compiled by: Dr. Lidija Globevnik Gašper Šubelj Luka Snoj Organisation: TC Vode EEA Project manager: Anita Pirc Velkavrh Risks and proposed management measures regarding explorative scenarios Table 1: Explorative scenario 1 (The good society) - vulnerability, risks and proposed mitigation measures. Affected sector Agriculture Threat/Impacts Energy Low reduction in precipitation & Low rise in temperature Proposed mitigation and adaptation measures to avoid/reduce threats and vulnerability and achieve vision Vulnerability Risks Low susceptibility of crop production due to low water shortage in soil, there is still enough water for irrigation. High coping capacities due to sustainable agricultural methods (crop pattern are adapted to climate and soil conditions). Summer water shortage can affect agriculture extension of growing season; changes in crop productivity, the projected lengthening of the thermal growing season would allow a northward expansion of warm season crops to areas that were not previously suitable. Higher risks of flood and risk events will effect agriculture production. Crop production will decrease. Agriculture policy has to stay sustainable and continuously adapt to climate change and changing environment. Investments into early warning systems should remain high in order to assure future sustainable development. Low susceptibility and high coping capacities of hydropower plants due to no/low changes in amount of disposable surface water resources and sustainable maintenance of existing HPP and efficient construction of new HPP. High energy consumption due to growing economy is causing demand for construction of new HPP, which is reducing availability of water. Conflicts between different economic sectors may occur. Majority of the rivers is exploited. Too high dependency on hydropower energy can present a risk of electric energy blackouts when there is not enough water in reservoirs for the power stations to function. Increase investment in nonhydropower renewable energy. Sustainable energy development strategies should include a wider spectrum of non-hydropower renewable energy sources such as sun, geothermal water, wind etc. Hydropower dependency should be reduced. New hydropower capacities should be carefully examined and assessed if they really will provide long-term benefits. 1 Tourism Urban Low susceptibility and high coping capacities of tourism due to no/low changes in amount of disposable surface water resources and sustainable maintenance of existing touristic facilities and efficient construction of new touristic infrastructure. Suitability for tourism can decline slightly during the key summer months. Regions close to the low elevation limit for winter sport are most sensitive to the projected warming. Climate changes can cause substantial consequences for coastal regions/countries where tourism is an important economic sector and contributor to national GDP (e.g. Croatia). Further development of tourism should remain sustainable and adapted to climate and environmental changes. Regions which are too depended on tourism should reconsider and preventively start to develop other sectors. With collaboration of all WB countries, region should be marketed as single tourist destination with unique culture. Low susceptibility and high coping capacities of urban areas due to no/low changes in amount of disposable surface water resources and sustainable renovation of existing urban facilities, introduction of green public transport and efficient construction of new urban residential settlements. Intense economic development can cause uncontrolled urban sprawl and depopulation of rural areas. Growing urban areas can face a growing drinking water demand which can result in drinking water deficit especially in summer. Rising temperatures can increase the risk of algal growth in water supply systems which can consequent in contamination of drinking water. Urban sprawl should be controlled and strategically planned with consideration of upcoming climate changes and their effects on urbanized regions. Living in rural areas and rural life style should be highly promoted to keep rural areas populated. Water levels should be carefully monitored for developing effective risk mapping for drinking water deficit and urban floods. 2 Table 2: Explorative scenario 2 (Technogarden in the Balkans) - vulnerability, risks and proposed mitigation measures. Affected sector Risks High susceptibility of crop production due to water shortage in soil and shortage of water for irrigation. High coping capacities due to sustainable agricultural methods (crop patterns are adapted to climate and soil conditions). Water shortage in all seasons but especially in summer can affect agriculture extension of growing season. Changes in crop productivity, the projected lengthening of the thermal growing season would allow a northward expansion of warm season crops to areas that were not previously suitable. Higher risks of flood and risk events will effect agriculture production. Crop production will decrease. It is a chance of uncontrolled introduction of genetically modified organisms (resilient to higher temperatures). Invasive and higher temperatures resilient species are threatening agriculture production. Extreme events as are droughts and floods are causing higher rates of tree mortality. Climate change can have impact also on forests vegetation period, growth, health and distribution of trees and thus on the services and goods provided by forests. Increasing evapotranspiration is putting pressure on the use of irrigation in drought-prone areas. Food prices are rising. Agriculture policy has to stay sustainable and continuously adapt to climate change and changing environment. Irrigation efficiency should be improved with introduction of low water demand drip irrigation techniques from local water resources. Water usage should be decreased with switching to crops which are less water-intensive to produce. Monitoring and warning systems should be established for surveying fires, diseases, insects and other possible disturbances in agriculture and forestry sectors. There should be strong cooperation between hydrometeorological and agricultural sectors. Researches and investments into new ways of obtaining useful information as is assessing of soil fertility and water levels using remote sensing should be encouraged. High susceptibility of water resources and high coping capacities of hydropower plants due to high changes in amount of disposable surface water resources but sustainable maintenance of existing HPP and efficient construction of new HPP. High energy consumption due to growing economy is causing demand for construction of new HPP, which is reducing availability of water. Droughts can impact the hydropower production very hard, causing blackouts when there is not enough water in reservoirs for the power stations to properly function. Lower water flows can cause lower hydropower outputs which combination with the increasing demands is causing energy deficit and need for electricity import. New hydropower capacities should be carefully examined and assessed if they really will provide long-term benefits considering on-going climate changes and reduced water flows while existing hydropower plants should be modified to be more energy efficient regarding less abundant river flows. There should be more control with implementing and testing new technologies regarding their environmental impacts and potential negative consequences. Investments in climate change investigation and future water availability should remain high with strong collaboration of energy, agricultural and water consuming sectors. High increase in temperature & High decrease in precipitation Energy Proposed mitigation and adaptation measures to avoid/reduce threats and vulnerability and achieve vision Vulnerability Agriculture Threat/Impacts 3 Suitability for tourism can decline moderately during the key summer months. Climate changes can cause substantial consequences on regions/countries where tourism is an important economic sector contributor to national GDP (e.g. Croatia). Rising temperatures in the whole region are likely to cause decrease in summer tourism, as tourists head further north. However, tourism later and earlier in the season may increase which can extend tourist season and contribute positively to GDP. Tourist infrastructure along the Adriatic coast may be vulnerable to coastal erosion and sea-level rise. Warmer winter temperatures and decreased precipitation can present a significant threat to ski resorts (winter tourist seasons are becoming shorter). Further development of tourism should remain sustainable and constantly adapt to climate and environmental changes. Regions which are too depended on tourism should reconsider and preventively start to develop other sectors. Higher temperatures mean that greater efforts should be made to design buildings with efficient cooling systems. Rather than focusing on largescale coastal developments, investors and planners should focus to develop lower-impact ecotourism facilities and infrastructure in national parks and mountainous regions. Ski resorts should be assessed with a focus on snow availability and their economic efficiency considering projected climate change impacts. To compensate for income lost in hotter summers and milder winters, tourist season can be expanded by introduction of other tourist friendly activities such as mountaineering, spa, rafting, horse-riding, etc. Major environmental, cultural and other touristic sites should be the subject of a thorough climate and natural hazard risk assessment. Touristic sites at higher risk should be properly protected. High susceptibility and high coping capacities of urban areas due to high changes in amount of disposable surface water resources and sustainable renovation of existing urban facilities, introduction of green public transport and efficient construction of new urban residential settlements. Intense economic development can cause uncontrolled urban sprawl and depopulation of rural areas. Heat waves can be especially strong and dangerous in highly urbanized areas. Beside heat waves, storms, urban floods and droughts can also threaten urban areas. Growing urban areas can face a higher drinking water demand which can result in summer drinking water deficit. Rising temperatures can increase the risk of algal growth in water supply systems which can consequent in contamination of drinking water. Sea level rise can cause sea flooding and present a significant risk to coastal cities. Higher mean temperature can increase demand for cooling but lower demand for heating. Climate change will have higher impacts on elder, very young and poor population. Urban sprawl should be controlled and strategically planned with consideration of upcoming climate changes and their effects on urbanized regions. Living in rural areas and rural life style should be highly promoted to keep rural areas populated. Water levels should be carefully monitored for developing effective risk mapping for drinking water deficit and urban floods. Coastal cities should implement proper measures regarding coast protection to avoid sea flooding such as seawalls, land acquisition and creation of marshlands as buffer against rising sea level, population which can't be protected should be relocated. Tourism High susceptibility and high coping capacities of tourism due to high changes in amount of disposable surface water resources and sustainable maintenance of existing touristic facilities and efficient construction of new touristic infrastructure. Urban High increase in temperature & High decrease in precipitation 4 Table 3: Explorative scenario 3 (Run to the hills) - vulnerability, risks and proposed mitigation measures. Affected sector Agriculture Threat/Impacts Energy Moderate temperature increase & Moderate precipitation decrease Proposed mitigation and adaptation measures to avoid/reduce threats and vulnerability and achieve vision Vulnerability Risks Low susceptibility of crop production due to low water shortage in soil and shortage of water for irrigation. Low coping capacities due to unsustainable agricultural methods (crop patterns are not adopted to climate and soil conditions). Summer water shortage can affect agriculture extension of growing season and decrease in crop productivity. The projected lengthening of the thermal growing season would allow a northward expansion of warm season crops to areas that were not previously suitable). Higher risks of flood and risk events will effect agriculture production especially because early warning systems are not established. Inefficient irrigation systems can negatively impact on water availability and crop production respectively. Water scarcity can affect irrigated agricultural areas. Agriculture policy should immediately implement principles of sustainable development and immediately adapt to climate change and changing environment. Climate change adaption measures should be incorporated into national/regional agricultural strategic development documents. Legislation regarding food safety and animal health should be stronger. Farmers should be encouraged to improve sustainability and adapt to climate change. New technologies should become more available to farmers with organic and sustainable farming techniques promotion. Sustainable rural development should be encouraged with investments to improve rural infrastructure. Establishment of monitoring and warning systems for surveying fires, diseases, insects and other possible disturbances in agriculture and forestry. Low susceptibility of water resources and low coping capacities of hydropower plants due to low changes in amount of disposable surface water resources but unsustainable maintenance of existing HPP and inefficient construction of new HPP. Conflicts between different economic sectors may occur. Unsustainable and insufficiently planned investments in new hydropower projects may prove poor value for money if they end up running at a small fraction of their total capacity which can result also in energy blackouts. Unsustainable and not strategically planned construction of new hydropower plants has significant detrimental effects on the environment (e.g. reduced biodiversity) of river catchments and can slow down other economic activities in the region. Early warning systems are not operational. National energy sectors should as soon as possible implement principles of sustainable development and begin to cooperate with neighbouring countries. Transboundary collaboration regarding exploitation of water sources for hydropower energy would ensure energy efficiency, sustainability and equal development of WB region. The highly centralized nature and aging infrastructure of the power distribution network in the Western Balkans leaves it vulnerable to climate change. Decentralization of the energy sector would lower its vulnerability to climate change and extreme events. In a first phase existing hydropower plants should be properly maintained with improved efficiency. In a second phase construction of new hydropower plants considering climate change and water availability should be done in sustainable way. Investments in non-hydropower renewable energy sources would ensure diversification of energy sources and reduce chances of energy blackouts. 5 Suitability for tourism can decline markedly through the year due to unattractive conditions for tourism and low adaption of tourism to climate change. Climate change can have negative impacts especially on regions/countries where tourism is an important economic sector and contributor to national GDP (e.g. Croatia). Rising temperatures in the whole WB region are likely to cause decrease in summer tourism, as tourists head further north. However, tourism later and earlier in the season may increase which can extend tourist season and contribute positively to GDP. Warmer winter temperatures, unsustainable infrastructure maintenance, low investments in new touristic facilities and decreased precipitation can present a significant threat to ski resorts and other touristic facilities respectively. Cultural heritage and cultural tourism may be endangered as well due to unsustainable economic development and renovation. Conflicts and social tensions are diverting tourists and creating unattractive conditions for further touristic development. Further development of tourism should immediately integrate means of sustainable development. Regions which are too depended on tourism should reconsider and preventively start to develop other sectors. New tourist development, facilities and infrastructure should be planned with minimal environmental footprints, with emphasize on ecologically sound waste management and renewable energy such as installation of solar panels on new buildings. Rather than focusing on large-scale coastal developments, investors and planners should focus to develop lower-impact ecotourism facilities and infrastructure in national parks and mountainous regions. Ski resorts should be properly maintained, construction of new ski resorts is not excluded if assessment of climate change impacts on their potential location shows that their construction is economically efficient in the long-term perspective. To compensate for income lost in hotter summers and milder winters, tourist season can be expanded by introduction of other tourist friendly activities such as mountaineering, spa, rafting, horse-riding, etc. Major environmental, cultural and other touristic sites should be the subject of a thorough climate and natural hazard risk assessment. Touristic sites at higher risk should be properly protected. Indirect measures such as establishment of political and social stability would markedly increase touristic attraction of the WB. Low susceptibility and low coping capacities of urban areas due to low/no changes in amount of disposable surface water resources and unsustainable urban development with insufficient public transport and other infrastructure. Public water supply and sewer systems are disrupted. Effects on quality of surface and groundwater are consequently adverse. Energy blackouts may occur due to reduced energy supply from hydropower generation due to unsustainable maintenance of hydropower facilities. Transport, commerce and economic activities are disrupted mainly due to unsustainable development. Lack of affordable housing facilities can result with development of informal settlements on marginal land near cities. Unsustainable economic development may raise social tension, ghettoization, conflicts can create unpleasant and unattractive living conditions in urbanized regions. Extreme events can present a moderate threat to linkage infrastructures such as bridges, roads, pipelines while transmission networks which can cause substantial economic losses in industry. Air pollution can be exacerbated by high temperatures. Exacerbation of the urban heat island effect can lead to increased risk of heat-related mortality and illnesses, especially for chronically sick, very young, socially isolated and elderly population. Heat waves can be especially strong and dangerous in highly urbanized areas without parks and green belts. Beside heat waves, storms, urban floods and droughts can also present a threat to urban areas. Urban planning should implement means of sustainable development with consideration of upcoming climate changes and their effects on urbanized regions. Living in rural areas and rural life style should be highly promoted to keep rural areas populated. Water levels should be carefully monitored for developing effective risk mapping for drinking water deficit and urban floods. Urban areas affected by heat waves should develop heat-health action plans and improve climate sensitive disease surveillance, control and sanitation. Public transport should become more efficient, sustainable and available to everybody. Critical infrastructure should be maintained and adjusted where needed to cope with climate change. Safety of schools and health facilities should be assessed and upgraded if necessary. Protected ecosystems and natural buffers should be introduced to mitigate floods, storms and other hazards. Construction of new facilities and residential neighbourhoods should be carefully and strategically planned, development of informal marginal settlements without proper infrastructure should be avoided. Tourism Low susceptibility and low coping capacities of tourism due to no/low changes in amount of disposable surface water resources and unsustainable maintenance of existing touristic facilities and inefficient construction of new touristic infrastructure. Urban Moderate temperature increase & Moderate precipitation decrease 6 Table 4: Explorative scenario 4 (Downward spiral) - vulnerability, risks and proposed mitigation measures. Affected sector Agriculture Threat/Impacts Energy High increase in temperature & High decrease in precipitation Proposed mitigation and adaptation measures to avoid/reduce threats and vulnerability and achieve vision Vulnerability Risks High susceptibility of crop production due to high water shortage in soil and shortage of water for irrigation. Low coping capacities due to unsustainable agricultural methods (crop patterns are not adopted to climate and soil conditions). Water shortage in all seasons but especially in summer can affect agriculture extension of growing season. Warmer temperatures, longer and more frequent droughts and heat waves are causing heat stress and increasing tree mortality. They have a large adverse effect on crop yields. Unsustainable farming practices combined with higher rates of evaporation from topsoil are causing soil degradation as one of the major threats. Lower yields will require greater food imports which are increasing food security concern. Rising food prices are likely to hit the hardest the poorest people who are living in rural areas. The capacity to develop new approaches and mitigate climate change impacts is low among farmers, many of whom have low education. There will be shortage of water for irrigation; certain crops which are currently not-irrigated will be forced to become more dependent on extra water. Invasive and higher temperatures resilient species are bringing threatening agriculture production. Changes in crop productivity and decreases in crop yield, such as wheat, maize, potatoes, vegetables etc. The projected lengthening of the thermal growing season would allow a northward expansion of warm season crops to areas that were not previously suitable. Agriculture policy should implement principles of sustainable development and immediately start adapting to climate change and changing environment. Climate change adaption measures should be incorporated into national/regional agricultural strategic development documents. Legislation regarding food safety and animal health should be stronger. Rural infrastructure should be improved; irrigational systems should be properly maintained with improved efficiency due to the fact that quantities of available water are decreasing. Areas where agricultural adaption to climate change is far below economic feasibility should be replaced with other economic sectors. Agriculture production should remain strong on less impacted areas. Farmers should adapt to climate change and start to grow drought and high temperatures resilient crops. To avoid deruralization of impacted areas livelihood diversification beyond farming should be supported and promoted with encouraging sustainable rural tourism. High susceptibility of water resources and low coping capacities of hydropower plants due to high changes in amount of disposable surface water resources and unsustainable maintenance of existing HPP and inefficient construction of new HPP. Main threat to hydropower energy production is presenting reduced water availability which is even more endangered due to unsustainable and insufficient water management and poor cooperation regarding exploitation of water resources between Western Balkans countries. Droughts can impact hydropower production very hard, causing blackouts when there is not enough water in reservoirs for the power stations to produce demanded amount of energy. Unsustainable and insufficiently planned investments in new hydropower projects may prove poor value for money if they end up running at a small fraction of their total capacity which can result also in energy blackouts. Thermo power plants as major energy source will be under threat due to the increasing scarcity of water for cooling purposes. The declining energy produced by hydropower and thermal power plants output combined with high energy losses will lead to energy import, potentially resulting in higher electricity prices which impacts will especially effect the poorest, rural population. Water use and energy supply is endangered due to poor water infrastructure, insufficient irrigation techniques and reduced water flows. Water use and energy supply is endangered due to poor water infrastructure and inefficient irrigation techniques. Early warning systems are not operational. Good water management practices are poorly known which is causing a big gap between energy production and research and are causing further society decay. National energy sectors should as soon as possible implement principles of sustainable development with strong consideration of on-going climate changes and reduced water flows and begin to cooperate with wider region. Transboundary collaboration regarding exploitation of water sources for hydropower energy would ensure energy efficiency, sustainability and equal development of WB region. In order to establish investment priorities, a thorough investigation of vulnerability of existing energy infrastructure and distribution network to climate change and extreme weather such as droughts and heat waves, floods etc. needs to be undertaken by national governments. To ensure energy sustainability existing hydropower and thermal plants should be properly maintained. The highly centralized nature and aging infrastructure of the power distribution network in the Western Balkans leaves it vulnerable to climate change. Environmentally disputed energy capacities (e.g. old thermo plants) should be replaced with green, environmentally friendly energy sources. There should be strong focus on energy conservation and efficiency. The importance of energy efficiency in all sectors should be incorporated in educational curricula as well. Decentralization of the energy sector would lower its vulnerability to climate change and extreme events. 7 High increase in temperature & High decrease in precipitation Tourism High susceptibility and low coping capacities of tourism due to high changes in amount of disposable surface water resources and unsustainable maintenance of existing touristic facilities and inefficient construction of new touristic infrastructure. Suitability for tourism can decline markedly through the year due to unattractive conditions for tourism, low, slow and insufficient adaption of tourism to climate change impacts. Climate change can have negative impacts especially on regions/countries where tourism is an important economic sector and contributor to national GDP (e.g. Croatia). Rising temperatures in the whole WB region can cause decrease in summer tourism, as tourists head further north where temperatures are milder. Tourist infrastructure along the Adriatic coast may be vulnerable to coastal erosion and sealevel rise. Warmer winter temperatures, unsustainable infrastructure maintenance, low investments in new touristic facilities and decreased precipitation can present a significant threat to ski resorts and other touristic facilities respectively. Cultural heritage and cultural tourism may be endangered as well due to unsustainable economic development, renovation and slow and insufficient infrastructure maintenance. Conflicts and social tensions are diverting tourists and creating unattractive conditions for further touristic development. Increased natural hazards can present a risk to many areas of tourist interest such as cultural centres and national parks. Natural hazards can not only discourage tourists from visiting but can potentially damage tourism centres and decrease their long-term tourist potential. 8 Tourism should immediately integrate means of sustainable development with emphasize on climate and environmental changes. Regions which are too depended on tourism should reconsider and preventively start to develop other sectors. New tourist facilities and infrastructure should be planned with minimal environmental footprints, with emphasize on ecologically sound waste management and renewable energy such as installation of solar panels on new buildings. Higher temperatures mean that greater efforts should be made to design buildings with efficient cooling systems. Coastal tourist destination should be assessed considering potential sea level rise. Rather than focusing on largescale coastal developments, investors and planners should focus to develop lower-impact ecotourism facilities and infrastructure in national parks and mountainous regions. Ski resorts should be assessed with a focus on snow availability and their economic efficiency considering projected climate change impacts. To compensate for income lost in hotter summers and milder winters, tourist season can be expanded by introduction of other tourist friendly activities such as mountaineering, spa, rafting, horse-riding, etc. Major environmental, cultural and other touristic sites should be the subject of a thorough climate and natural hazard risk assessment. Touristic sites at higher risk should be properly protected. Climate change impacts should not be considered just as threat for some tourist destinations but also as opportunity for destinations which were traditionally not touristic but their tourist potential increased with warmer - more pleasant climate (e.g. mountainous settlements). Such destinations should be recognized and stimulated to develop proper tourist facilities and infrastructure in sustainable way. Indirect measures such as establishment of political and social stability would markedly increase touristic attraction of the WB. Governments should provide better support to private sector and assure that information and programs, regarding climate change adaption are available particularly to smaller private entrepreneurs working in tourist sector. Urban High susceptibility and low coping capacities of urban areas due to high changes in amount of disposable surface water resources and unsustainable urban development with insufficient public transport and other infrastructure. Extreme events can present a threat to linkage infrastructures such as bridges, roads, pipelines, or transmission networks which can cause substantial economic losses in industry. Air pollution is exacerbated by high temperatures. Energy transmission and distribution may be overstressed because of heat waves in conjunction with higher energy demand for cooling. Exacerbation of the urban heat island effect can lead to increased risk of heat-related mortality and illnesses, especially for chronically sick, very young, socially isolated and elderly population. Heat waves can be especially strong and dangerous in highly urbanized areas. Beside heat waves, storms, urban floods and droughts can also present a threat to urban areas. Sea level rise can cause sea flooding and present a significant risk to coastal cities. Groundwater availability may be at risk due to saline intrusion intro aquifers. Public water supply and sewer systems are disrupted. Effects on quality of surface and groundwater are consequently adverse. Energy blackouts may occur due to reduced energy supply from hydropower generation. Transport, commerce and economic activities are disrupted due to heavy precipitation events and unsustainable development. Lack of affordable housing facilities can result with development of informal settlements on marginal land near cities. Unsustainable economic development may rise social tension, ghettoization, and conflicts and create unpleasant and unattractive living conditions in urbanized regions. 9 Urban planning should implement means of sustainable development with consideration of upcoming climate changes and their effects on urbanized regions. Living in rural areas and rural life style should be highly promoted to keep rural areas populated. Water levels should be carefully monitored for developing effective risk mapping for drinking water deficit and urban floods. Coastal cities should implement proper measures regarding coast protection to avoid sea flooding such as seawalls and land acquisition and creation of marshlands as buffer against rising sea level. Population which can't be protected should be relocated. Urban areas affected by heat waves should develop heat-health action plans and improve climate sensitive disease surveillance, control and sanitation. Public transport should become more efficient, sustainable and available to everybody. Critical infrastructure should be maintained and adjusted where needed to cope with climate change. Early warning systems should be installed; emergency management capacities should be increased. Safety of schools and health facilities should be assessed and upgraded if necessary. Protected ecosystems and natural buffers should be introduced to mitigate floods, storms and other hazards. Construction of new facilities and residential neighbourhoods should be carefully and strategically planned, uncontrolled development of informal marginal settlements without proper infrastructure should be avoided.