Climate Change And Water Resources In Africa

The focus of this book is on the key water-related vulnerabilities to climate change in Africa, particularly in its most vulnerable areas, exploring potential management responses to such vulnerabilities. The African countries are particularly exposed and vulnerable to the negative impacts of climate change, with important impacts on water resources and hydrological systems, water availability, water resource management and sea level variations. Already, under various anthropogenic pressures, the status of water resources in Africa has been changing over the past decades, with decreasing water quality, falling groundwater levels, and variability in rainfall, both in terms of timing and intensity. Climate change will further accelerate the rate of change, affecting the ability of people and societies to respond in a timely manner. It is clear that there is no quick fix to the pressures imposed on water resources by climate change. Increasing the resilience of ecosystems and communities to extreme events such as flooding and drought, and integrating climate change risks and opportunities into development decision-making is indeed a key challenge, as much a technical climate-change one, as a political and developmental challenge. The book, in this regard, intends to contribute to the debate around climate change in relation to water resources management in Africa, and in particular inform policy decisions and actions that will improve governments’ and communities’ ability to manage the challenges of climate change and variability in relation to the aquatic ecosystems that they depend on. The knowledge collected in this book will benefit policy makers, researchers, as well as other stakeholders.

"Climatic Change and Water Resources in the Middle East and North Africa" is dedicated to high-priority topics related to the impact of climate change on water resources in a water scarce region. The subject is described and discussed in three main chapters and different case studies. The three main chapters are (1) Climatic changes - sources and effects on the water cycle, (2) Impact of climate change on water resources, (3) Water resources and water management. These chapters are split up into further 26 sections. A total of 64 individuals from many countries have made contributions to this book. All topics in this book are complimentary and contribute to a comprehensive understanding of the interactions between global climate change, world water cycle and water resources. A valuable and meaningful interdisciplinary mixture of topics is combined in this book which will be of great interest to many scientists.

This book presents a comprehensive overview of climate variability and change in Africa, and includes impact assessments and case studies from integration frameworks, with a particular focus on climate, agriculture and water resources. Richly illustrated, the book highlights case studies from western, eastern and southern African region, and explores related development policies. Climate change adaptation research, prediction, and reanalysis are also addressed

This paper summarizes the methods and findings of the hydrological assessment component of the project studying likely impacts of climate change on water resources and agriculture in Africa. The first phase of the study used a version of a conceptual rainfall-runoff model called WatBal (Water Balance) applied to gridded data to simulate changes in soil moisture and runoff across the whole continent of Africa rather than to any particular catchment or water resource system. The model inputs were the climate variables of the 1961-90 climatology and physiological parameters (such as soil properties and land use) derived from global datasets for each of the 0.5 degree latitude/longitude cells across the continent. The primary model output comprised a time series (monthly time step) of simulated runoff for all the grid cells for each of the districts in the countries of interest. The second phase of the study extended the hydrology analyses to update the above hydroclimatic series to the year 2000 using updated input data. To ascertain the possible impacts of climate change within the districts being investigated this study used synthetic or GCM-based climate change scenarios as input to the WatBal model. The WatBal model was used to determine the impact of these different scenarios on runoff and actual evaporation and hence flow in the districts under study. The generated hydroclimatic series and scenario analyses were used as inputs into various Ricardian regressions in other analyses measuring likely impacts of climate change on the agricultural economies of Africa.

This collection showcases experiences from research and field projects in climate change adaptation on the African continent. It includes a set of papers presented at a symposium held in Addis Abeba in February 2016, which brought together international experts to discuss “fostering African resilience and capacity to adapt.” The papers introduce a wide range of methodological approaches and practical case studies to show how climate change adaptation can be implemented in regions and countries across the continent. Responding to the need for more cross-sectoral interaction among the various stakeholders working in the field of climate change adaptation, the book fosters the exchange of information on best practices across the African continent.

The effects of climate change are beginning to be felt around the world with rising temperatures, changing precipitation levels, more frequent and severe storms and longer more intensive droughts threatening human life and livelihoods and damaging property and infrastructure. As such, society in all countries – both developing and developed – need to increase their resilience to the impacts of climate change, where resilience is the ability of a system to absorb stresses and adapt in ways that improve the overall sustainability of the system; enabling it to be better prepared for future climate change impacts. In this context, a climate resilient society is one that is: reflective (learns from experiences); robust (both people and infrastructure can withstand the impacts of extreme conditions); forward-thinking (with plans made to ensure systems function during extreme events); flexible (so systems and plans can change, evolve or adopt alternative strategies); resourceful (to respond quickly to extreme events); inclusive (so all communities including the vulnerable are involved in planning); and integrated (so people, systems, decision-making and investments are mutually supportive of common goals). The Climate Resilient Societies Major Reference Work includes chapters covering a range of themes that provide readers with an invaluable overview on how various levels of government have attempted to create climate resilient societies. In particular, each chapter, under its respective theme, will address how a government, or series of governments, at various levels in non-OECD and/or OECD countries, have implemented innovative climate resilient policies that seek synergies across strategies, choices and actions, in an attempt to build a climate resilient society. Each chapter will address one specific sub-theme out of the population of themes covered in the Major Reference Work: Water, Energy, Agriculture and Food, Built environment and Infrastructure, Transport, Human health, Society, Disaster, Business and Economy, and Financing Climate Resilience.

- Water resources management should be assessed under climate change conditions, as historic data cannot replicate future climatic conditions. - Climate change impacts on water resources are bound to affect all water uses, i.e., irrigated agriculture, domestic and industrial water supply, hydropower generation, and environmental flow (of streams and rivers) and water level (of lakes). - Bottom-up approaches, i.e., the forcing of hydrologic simulation models with climate change models’ outputs, are the most common engineering practices and considered as climate-resilient water management approaches. - Hydrologic simulations forced by climate change scenarios derived from regional climate models (RCMs) can provide accurate assessments of the future water regime at basin scales. - Irrigated agriculture requires special attention as it is the principal water consumer and alterations of both precipitation and temperature patterns will directly affect agriculture yields and incomes. - Integrated water resources management (IWRM) requires multidisciplinary and interdisciplinary approaches, with climate change to be an emerging cornerstone in the IWRM concept.

This book presents case studies that share important experiences regarding Integrated Water Resource Management (IWRM) in various countries. Following an introduction to theoretical concepts, responsibilities, and challenges, the subsequent chapters address, among other topics, an analysis of policies and regulations for water management in Brazil, the drivers that led California to adapt to the IWRM framework, and the international regulations for water markets and water banking in Australia and Chile. The implications of climate change for water resource systems in Mexico are discussed, as well as management strategies from California that could potentially serve as IWRM adaptation schemes in Mexico. Critical cases from Guanacaste (Costa Rica), and from Zayandehrud River Basin and Lake Urmia (Iran) are reviewed in terms of management practices and solutions. The book also provides an overview of the current availability and use of water resources in South Korea, and discusses the management of and international water law instruments for transboundary groundwater in Africa.

Climate change is a major challenge for us all, but for African countries it represents a particular threat. This book outlines current thinking and evidence and the impact such change will have on Africa's development prospects. Global warming above the level of two degrees Celsius would be enormously damaging for poorer parts of the world, leading to crises with crops, livestock, water supplies and coastal areas. Within Africa, it's likely to be the continent's poorest people who are hit hardest. In this accessible and authoritative introduction to an often-overlooked aspect of the environment, Camilla Toulmin uses case studies to look at issues ranging from natural disasters to biofuels, and from conflict to the oil industry. Finally, the book addresses what future there might be for Africa in a carbon-constrained world.

Climate change is expected to modify the hydrological cycle and affect freshwater resources. Groundwater is a critical source of fresh drinking water for almost half of the worlds population and it also supplies irrigated agriculture. Groundwater is also important in sustaining streams, lakes, wetlands, and associated ecosystems. But despite this,