scholarly journals Water in Times of Climate Change

2021 ◽  
Keyword(s):  
Climate Change ◽  
Water Management ◽  
Case Studies ◽  
Urban Areas ◽  
Cape Town

This book on water and climate change goes beyond the usual and predictable analyses, by bringing religion and values into a discussion that is often dominated by technocratic solutions. The three case studies of Jakarta, Cape Town, and Amsterdam demonstrate the challenges of water management in urban areas and the role religion can play in addressing them. With representatives from science, politics, economics, and religion, as well as young voices, the book stimulates a values-driven dialogue on issues of water in times of climate change.

European cities facing climate change: water management issue

BUILDER ◽  
2021 ◽  
Vol 288 (7) ◽  
pp. 78-85
Author(s):  
Sebastian Dziedzic ◽  
Agata Twardoch
Keyword(s):  
Climate Change ◽  
Water Management ◽  
Case Studies ◽  
Urban Areas ◽  
Urban Spaces ◽  
Management Issue ◽  
European Cities ◽  
Integrated Approaches

The article provides an overview of spatial and legal solutions related to the issue of water management in cities in the context of climate change. The aim of the research is to identify the main differences between the traditional and integrated approaches to water-related infrastructure based on case studies of European Cities at different scales. Gathering, ordering and comparing adequate solutions will allow to establish guidelines for the development of Polish cities and point out directions for architects and urban planners designing urban spaces. The comparison of good examples with theory would make it possible to verify whether practise corresponds with theory, and whether it can actually - through the synergy of measures – bring new quality to urban areas.

Cross sectoral and scale-up impacts of greywater recycling technologies on catchment hydrological flows

2008 ◽  
Vol 57 (5) ◽  
pp. 741-746 ◽  
Author(s):  
N Bertrand ◽  
B Jefferson ◽  
P Jeffrey
Keyword(s):  
Climate Change ◽  
Water Management ◽  
Surface Runoff ◽  
Urban Areas ◽  
Scale Up ◽  
Catchment Scale ◽  
Flood Volume ◽  
Recycling Systems ◽  
Flooding Events ◽  
The Impact

With the growth of urban areas and climate change, decisions need to be taken to improve water management. This paper reports an assessment of the impact of greywater recycling systems on catchment scale hydrological flows. A simulation model developed in InfoWorks CS (Wallingford Software Ltd) was used to evaluate how river flows, sewer flows, surface runoff and flooding events may be influenced when grey water recycling systems of different number and scale are implemented in a representative catchment. The simulations show the effectiveness of greywater recycling systems in reducing total wastewater volume and flood volume. However, no hydraulic impacts due to implementation of greywater was identified by the model.

scholarly journals How Does Digitization Succeed in the Municipal Water Sector? The WaterExe4.0 Meta-Study Identifies Barriers as well as Success Factors, and Reveals Expectations for the Future

Energies ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 7709
Author(s):  
Günter Müller-Czygan ◽  
Viktoriya Tarasyuk ◽  
Christian Wagner ◽  
Manuela Wimmer
Keyword(s):  
Climate Change ◽  
Water Management ◽  
Water Resources ◽  
Urban Areas ◽  
Digital Systems ◽  
Urban Water ◽  
Water Industry ◽  
Urban Water Management ◽  
The Future ◽  
German Speaking

Water is increasingly taking center stage when it comes to coping with climate change. Especially in urban areas, negative consequences from heavy rainfall events and prolonged dry periods are rising worldwide. In the past, the various tasks of urban water management were performed by different departments that often did not cooperate with each other (water supply, wastewater disposal, green space irrigation, etc.), as the required water supply was not a question of available water volumes. This is already changing with climate change, in some cases even dramatically. More and more, it is necessary to consider how to distribute available water resources in urban areas, especially during dry periods, since wastewater treatment is also becoming more complex and costly. In the future, urban water management will examine water use in terms of its various objectives, and will need to provide alternative water resources for these different purposes (groundwater, river water, storm water, treated wastewater, etc.). The necessary technological interconnection requires intelligent digital systems. Furthermore, the water industry must also play its role in global CO2 reduction and make its procedural treatment processes more efficient; this will also only succeed with adequate digital systems. Although digitization has experienced an enormous surge in development over the last five years and numerous solutions are available to address the challenges described previously, there is still a large gap between the scope of offerings and their implementation. Researchers at Hof University of Applied Sciences have investigated the reasons for this imbalance as part of WaterExe4.0, the first meta-study on digitization in the German-speaking water industry, funded by the German Federal Ministry of Education and Research. Only 11% of roughly 700 identified products, projects and studies relate to real applications. For example, the surveyed experts of the water sector stated that everyday problems are considered too little or hardly at all in new solutions, which greatly overburdens users. Furthermore, they see no adequate possibility for a systematic analysis of new ideas to identify significant obstacles and to find the best way to start and implement a digitization project. The results from four methodologically different sub-surveys (literature and market research, survey, expert interviews and workshops) provide a reliable overview of the current situation in the German-speaking water industry and its expectations for the future. The results are also transferable to other countries.

scholarly journals Storm water Management in the context of Climate Change and Rapid Urbanization: A case of Tokyo Metropolitan

2019 ◽  
Vol 1 ◽  
pp. 32-44
Author(s):  
Binaya Kumar Mishra
Keyword(s):  
Climate Change ◽  
Water Management ◽  
Urban Areas ◽  
Water Environment ◽  
Storm Water ◽  
Groundwater Depletion ◽  
Flood Events ◽  
Rapid Urbanization ◽  
Storm Water Management ◽  
Tokyo Metropolitan

Groundwater table depletion and increasing flood events can be easily realized in urban areas. It is necessary to improve existing storm water management systems for good quality water environment and reduced hydro-meteorological disasters while preserving our natural/pristine environment in a sustainable manner. This can be achieved through optimal collection, infiltration and storage of storm water. The need of sustainable storm water management is desired and optimal capture measure is explored in this paper. This paper provides a review of storm water management in urbanization and climate change context with a case study of Tokyo Metropolitan, Japan which could be helpful in mitigating the dual problems of groundwater depletion and flood events. This paper presents the overview of storm water run-off management in order to guide future storm water management policies. Also, the effects of different onsite facilities from water harvesting, reuse, ponds and infiltration are explored to establish adaptation strategies that restore water cycle and reduce climate change induced flood and water scarcity.

Climate change impacts on river basin and freshwater ecosystems: some observations on challenges and emerging solutions

2012 ◽  
Vol 3 (3) ◽  
pp. 171-184 ◽  
Author(s):  
Avi Ostfeld ◽  
Stefano Barchiesi ◽  
Matthijs Bonte ◽  
Carol R. Collier ◽  
Katharine Cross ◽  
...  
Keyword(s):  
Climate Change ◽  
Water Management ◽  
Case Studies ◽  
River Basin ◽  
Climate Change Impacts ◽  
River Basin Management ◽  
Freshwater Ecosystems ◽  
Delaware River ◽  
Change Models ◽  
Okavango River

Despite uncertainty pertaining to methods, assumptions and input data of climate change models, most models point towards a trend of an increasing frequency of flooding and drought events. How these changes reflect water management decisions and what can be done to minimize climate change impacts remains unclear. This paper summarizes and extends the workshop outcomes on ‘Climate Change Impacts on Watershed Management: Challenges and Emerging Solutions’ held at the IWA World Water Congress and Exhibition, Montréal, 2010, hosted by the IWA Watershed and River Basin Management Specialist Group. The paper discusses climate change impacts on water management of freshwater ecosystems and river basins, and illustrates these with three case studies. It is demonstrated through the case studies that engagement of relevant stakeholders is needed early in the process of building environmental flows and climate change decision-making tools, to result in greater buy-in to decisions made, create new partnerships, and help build stronger water management institutions. New alliances are then created between water managers, policy makers, community members, and scientists. This has been highlighted by the demonstration of the Pangani integrated environmental flow assessment, through the Okavango River Basin case study, and in the more participatory governance approach proposed for the Delaware River Basin.

scholarly journals Nature-Based Solutions for Urban Climate Change Adaptation and Wellbeing: Evidence and Opportunities From Kiribati, Samoa, and Vanuatu

2021 ◽  
Vol 9 ◽  
Author(s):  
Gabriel L. Kiddle ◽  
Tokintekai Bakineti ◽  
Anita Latai-Niusulu ◽  
Willy Missack ◽  
Maibritt Pedersen Zari ◽  
...  
Keyword(s):  
Climate Change ◽  
Case Studies ◽  
Climate Change Adaptation ◽  
Urban Areas ◽  
Pacific Islands ◽  
Biological Diversity ◽  
Urban Climate ◽  
Urban Ecosystems ◽  
Ecological Knowledge ◽  
Pacific Island

Climate change and urbanisation in combination put great pressure on terrestrial and ocean ecosystems, vital for subsistence and wellbeing in both rural and urban areas of Pacific islands. Adaptation is urgently required. Nature-based solutions (NbS) offer great potential, with the region increasingly implementing NbS and linked approaches like ecosystem-based adaptation in response. This paper utilises three Pacific island nation case-studies, Kiribati, Samoa and Vanuatu, to review current NbS approaches to adapt and mitigate the converging resilience challenges of climate change and urbanisation. We look at associated government policies, current NbS experience, and offer insights into opportunities for future work with focus on urban areas. These three Pacific island case-studies showcase their rich cultural and biological diversity and, importantly, the role of traditional ecological knowledge in shaping localised, place-based, NbS for climate change adaptation and enhanced wellbeing. But gaps in knowledge, policy, and practice remain. There is great potential for a nature-based urban design agenda positioned within an urban ecosystems framework linked closely to Indigenous understandings of wellbeing.

A conceptual framework for addressing complexity and unfolding transition dynamics when developing sustainable adaption strategies in urban water management

2012 ◽  
Vol 66 (11) ◽  
pp. 2393-2401 ◽  
Author(s):  
C. F. Fratini ◽  
M. Elle ◽  
M. B. Jensen ◽  
P. S. Mikkelsen
Keyword(s):  
Climate Change ◽  
Water Management ◽  
Conceptual Framework ◽  
Green Infrastructure ◽  
Urban Areas ◽  
System Optimization ◽  
Urban Water ◽  
Urban Water Management ◽  
Adaptation To Climate Change ◽  
Sustainable Transition

To achieve a successful and sustainable adaptation to climate change we need to transform the way we think about change. Much water management research has focused on technical innovation with a range of new solutions developed to achieve a ‘more sustainable and integrated urban water management cycle’. But Danish municipalities and utility companies are struggling to bring such solutions into practice. ‘Green infrastructure’, for example, requires the consideration of a larger range of aspects related to the urban context than the traditional urban water system optimization. There is the need for standardized methods and guidelines to organize transdisciplinary processes where different types of knowledge and perspectives are taken into account. On the basis of the macro–meso–micro pattern inspired by complexity science and transition theory, we developed a conceptual framework to organize processes addressing the complexity characterizing urban water management in the context of climate change. In this paper the framework is used to organize a research process aiming at understanding and unfolding urban dynamics for sustainable transition. The final goal is to enable local authorities and utilities to create the basis for managing and catalysing the technical and organizational innovation necessary for a sustainable transition towards climate change adaptation in urban areas.

scholarly journals Water sensitive urban design and stormwater harvesting - on the path to sustainable urban development - case studies from Sydney, Australia

2007 ◽  
pp. 851-861
Author(s):  
Olof J. Jonasson ◽  
Peter Davies
Keyword(s):  
Water Management ◽  
Case Studies ◽  
Urban Design ◽  
Land Use Planning ◽  
Water Conservation ◽  
Urban Areas ◽  
Sustainable Urban Development ◽  
Urban Drainage ◽  
Eastern Australia ◽  
Water Sensitive Urban Design

In Australia, Water Sensitive Urban Design (WSUD) or Sustainable Urban Drainage (SUDS)is being used to integrate urban drainage and water supply infrastructure planning and designwith elements of hydrology, ecology, land use planning and landscaping, To support thisdirection, various National and State guidelines and legislation have been developed that areaimed at changing traditional engineering and urban design practice,Recent droughts affecting most of Eastern Australia, including three capital cities, has led to afocus on urban water management. This has increased the attention and recognition ofintegrated water management including water conservation, demand management,diversification of supply, protecting environmental flows and improving water quality at thereceiving bodies. Within Australia, stormwater reuse is being promoted as one way to lessenthe demand on drinking water supplies for non-potable uses. Important for urban areas is theneed for appropriate levels of treatment (depending on use) and sufficient storage to provide areliable supply. From an integrated water management perspective such projects can havemultiple benefits through managing the discharge and improving the quality from lowfrequent storms at the local scale while providing broader water conservation gains across theurban area.This paper discusses two case studies from Australia that have applied integrated watermanagement principles within an existing urban catchment. These include a stormwaterharvesting project to irrigate a sports field and a car park bioretention system to treat roadrunoff before it discharges to a natural stream.

scholarly journals Critical Gaps and Implications of Risk Communication in International Agreements: 3 Select Case Studies From Urban Areas in the Tropics of South Asia

2021 ◽  
Author(s):  
Shabana Khan ◽  
Jyoti Mishra
Keyword(s):  
Climate Change ◽  
Risk Communication ◽  
South Asia ◽  
Case Studies ◽  
Urban Areas ◽  
Local Level ◽  
Disaster Risk ◽  
International Agreements ◽  
Political Processes ◽  
The Tropics

Abstract The cost of urban disasters has been consistently increasing, particularly in the cities of developing countries located across the tropics. Among various challenges of disaster risk management and climate change impacts, it is noted that most residents are poorly informed about their risk exposure and apposite response. The paper is based on the premise that one important cause for this gap is inadequate emphasis on risk communication at different levels of planning and agreements. Accordingly, it highlights some important gaps in the risk communication across international agreements including Sendai Framework for Disaster Risk Reduction (SFDRR), Sustainable Development Goals (SDGs), and United Nations Framework Convention on Climate Change (UNFCCC) and evaluates their impacts at the local level. It brings three select urban case studies located in the tropical areas of South Asia region that illustrate contradiction and chaos that results from inadequate stress on risk communication at the global level. The findings are based on secondary data and literature focusing on global agreements, risk communication, and disaster response. The paper argues that even though global strategies address urban risks, the fragmented nature of risk communication results in poor response and contributes to losses that occur in disasters. It suggests a need to address risk communication as a priority for dealing with risks at different scales. There is also a need to redefine risk communication that extends beyond warning generation and considers multiple factors influencing response including interlinked vulnerabilities, and variations emerging from varied geographical, socio-cultural, economic, and political processes.

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