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The spectacular industrial and economic development of the twentieth century was achieved at a considerable environmental cost. The increasingly precarious position of water, the most valuable of natural resources, reflects this trend. Today we have come to realise that concepts of sustainable development need to
The protection of water resources from deterioration in quality by pollution discharges is probably the biggest challenge in sustainable water resources management in the recent decades. In practice, most countries have adopted pollution control strategies and measures which are based on ‘end-of-pipe’ solutions: wastewater treatment plants and adjustments to the regulations, including taxes for wastewater discharges (Conventional Strategy). Although this approach involves very high costs, on many occasions, this strategy has been a complete failure. The research described in this book contribute to the development of sustainable solutions for the previously outlined problem. It was based on the validation of the Three-Step Strategic Approach concept (3-SSA), which includes: 1) prevention or minimisation of waste production; 2) treatment aimed at recovery and reuse of waste components, and 3) disposal of remaining waste with stimulation of natural self-purification of the receiving water body. The study showed overall positive effects of the 3-SSA, in comparison of Conventional Strategy, on wastewater management in the Upper Basin (389 km) of the Cauca river, the second most important river in Colombia. The Cost Benefit Analysis clearly favoured the 3-SSA, generating a major impact on the river water quality at lower cost compared to the Conventional Strategy.
This publication is a product of the GEF-funded FAO project ‘Decision Support for Mainstreaming and Scaling Out Sustainable Land Management (DS-SLM)’ which has developed a decision support framework (DSF). The DSF integrates experience from work with land degradation (LD) and SLM into an overall strategy for mainstreaming and scaling out SLM at different spatial and temporal scales. This publication serves as a step-by-step guide for the application and implementation of the DSF during planning, design and implementation of SLM interventions. It includes elements – both in its modules and proposed tools and methods – which can support countries in pursuing land degradation neutrality (LDN).
Across the Middle East, population growth and the rising consumption of water represent two key variables that are closely intertwined. When added to the projected impact of climate change on the region, they threaten to undermine established methods that attempt to ensure a manageable level of domestic and regional water security. Developing nations lacking water security are forced to contend with the looming complications this shortage could yield, which consequently obstruct attempts to achieve long-term, sustainable development. It is therefore imperative that policy and decision-makers be mindful of ongoing environmental, societal and technological developments that hold the potential to either better assist, or alternatively, hinder their efforts in managing limited water supplies. The conference, titled ‘Climate Change and the Future of Water’, co-organized by the ECSSR and the University of Maine, was held in Abu Dhabi from October 14–15, 2014. It brought together a group of distinguished experts and scientific researchers drawn from academia and government to provide valuable insights into developments in climate change and water security. In view of the clear importance of this issue to the Arab Gulf region, the ECSSR is pleased to present the resultant papers compiled in this volume. These professional and academic perspectives regarding regional implications of climate change and water scarcity offer innovative approaches to combatting some of the problems tied to climate change and water security.
Many people worldwide lack adequate access to clean water to meet basic needs, and many important economic activities, such as energy production and agriculture, also require water. Climate change is likely to aggravate water stress. As temperatures rise, ecosystems and the human, plant, and animal communities that depend on them will need more water to maintain their health and to thrive. Forests and trees are integral to the global water cycle and therefore vital for water security – they regulate water quantity, quality, and timing and provide protective functions against (for example) soil and coastal erosion, flooding, and avalanches. Forested watersheds provide 75 percent of our freshwater, delivering water to over half the world’s population. The purpose of A Guide to Forest–Water Management is to improve the global information base on the protective functions of forests for soil and water. It reviews emerging techniques and methodologies, provides guidance and recommendations on how to manage forests for their water ecosystem services, and offers insights into the business and economic cases for managing forests for water ecosystem services. Intact native forests and well-managed planted forests can be a relatively cheap approach to water management while generating multiple co-benefits. Water security is a significant global challenge, but this paper argues that water-centered forests can provide nature-based solutions to ensuring global water resilience.
​There has been some degree of reluctance in the past to consider disaster risk management within the mainstream of adaptation to climate variability and climate change. However, there is now wide recognition of the need to incorporate disaster risk management concerns in dealing with such phenomena. There is also a growing awareness of the necessity for a multi-sectoral approach in managing the effects of climate variability and climate change, since this can lead to a significant reduction of risk. This book presents the latest findings from scientific research on climate variation, climate change and their links with disaster risk management. It showcases projects and other initiatives in this field that are being undertaken in both industrialised and developing countries, by universities and scientific institutions, government bodies, national and international agencies, NGOs and other stakeholders. Finally, it discusses current and future challenges, identifying opportunities and highlighting the still unrealised potential for promoting better understanding of the connections between climate variation, climate change and disaster risk management worldwide.
Vols. for 1963- include as pt. 2 of the Jan. issue: Medical subject headings.
Fractured rock is the host or foundation for innumerable engineered structures related to energy, water, waste, and transportation. Characterizing, modeling, and monitoring fractured rock sites is critical to the functioning of those infrastructure, as well as to optimizing resource recovery and contaminant management. Characterization, Modeling, Monitoring, and Remediation of Fractured Rock examines the state of practice and state of art in the characterization of fractured rock and the chemical and biological processes related to subsurface contaminant fate and transport. This report examines new developments, knowledge, and approaches to engineering at fractured rock sites since the publication of the 1996 National Research Council report Rock Fractures and Fluid Flow: Contemporary Understanding and Fluid Flow. Fundamental understanding of the physical nature of fractured rock has changed little since 1996, but many new characterization tools have been developed, and there is now greater appreciation for the importance of chemical and biological processes that can occur in the fractured rock environment. The findings of Characterization, Modeling, Monitoring, and Remediation of Fractured Rock can be applied to all types of engineered infrastructure, but especially to engineered repositories for buried or stored waste and to fractured rock sites that have been contaminated as a result of past disposal or other practices. The recommendations of this report are intended to help the practitioner, researcher, and decision maker take a more interdisciplinary approach to engineering in the fractured rock environment. This report describes how existing tools-some only recently developed-can be used to increase the accuracy and reliability of engineering design and management given the interacting forces of nature. With an interdisciplinary approach, it is possible to conceptualize and model the fractured rock environment with acceptable levels of uncertainty and reliability, and to design systems that maximize remediation and long-term performance. Better scientific understanding could inform regulations, policies, and implementation guidelines related to infrastructure development and operations. The recommendations for research and applications to enhance practice of this book make it a valuable resource for students and practitioners in this field.