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Climate change impacts

Key Documents

Reports

Displaying 1-20 of 30 key documents

Climate change, water and food security

Source: Food and Agriculture Organization | December 2011

This report examines the challenges of managing water resources for agricultural use — specifically in the context of food production — in the face of a changing climate. It provides an overview of climate change impacts in different parts of the world, details options for adaptation and mitigation, and offers practical recommendations on how developing countries can cope with these impacts.  

The report outlines methods to assess impacts on water and agriculture, and stresses that water and agricultural policies must be more closely aligned. It concludes with suggestions for action to help countries in carrying out such assessments and adapting agricultural water management. These include using methods such as decision analysis to improve predictions; developing and applying downscaling techniques to build capacity for better analyses and climate adaptation; and coordinating analyses of the level of investment required for different solutions.

A framework for assessing the vulnerability of wetlands to climate change

Source: Ramsar Convention on Wetlands | June 2011

This technical report examines methods for assessing the vulnerability of wetlands — particularly in the context of climate change — as part of a broader set of methodologies for wetland inventory, assessment and monitoring. It gives an overview of available approaches to assessing vulnerability, including the frameworks available to incorporate climate change risks into development planning and projects.

The report identifies challenges and information gaps that have emerged from vulnerability assessments, including "multiple vulnerabilities" a lack of reliable data or long-term monitoring, and differing perceptions of the need to address wetland vulnerability. It concludes that to provide the information needed for sound management vulnerability assessments will need a better understanding of the complexity of interactive pressures that affect wetlands, such as land use and pollution; to develop appropriate metrics to assess vulnerability to multiple pressures; and to bolster data on the sensitivity and adaptive capacity of wetlands.

The State of Food Insecurity in the World 2011

Source: Food and Agriculture Organization | October 2011

This year's edition of the report focuses on the costs of food price volatility, as well as the dangers and opportunities that high food prices present to poor countries. It outlines how food price volatility affects food security, offers policy options to reduce volatility cost-effectively, and suggests how countries can manage cost increases when they cannot be avoided.

A key message of the report is that increases in food prices are set to continue. The authors pinpoint contributing factors such as climate change-related increases in the frequency of extreme weather events, and stronger linkages between energy and agricultural markets because of growing demand for biofuels.

One of the key points made in the report is that large countries were able to insulate themselves from the crisis, but small countries dependent on imports, especially in Africa, were hard hit. Others include the importance of safety-net mechanisms for alleviating the impacts of food insecurity and laying the foundations for development, and that high food prices offer incentives for improving food security in the long term by increasing investment in agriculture.

A better climate for disaster risk management

Source: The International Research Institute for Climate and Society (IRI) The Earth Institute at Columbia University | 2011

This report highlights advances in the use of climate information to predict and prepare for climate-related natural disasters. It draws together 17 case studies that capture the current state of knowledge within the humanitarian community, and identifies research innovations. It presents the challenges and opportunities that disaster risk managers face in using climate science with a three step approach: indentifying the problem, developing tools, and taking action.

The results show that effective partnerships are crucial and can help to build the information needed for effective response. They also suggest how the use of this information can be improved — for example by focusing on immediate opportunities for action in countries and regions more likely to benefit. Recommendations also include developing realistic expectations, in order to maintain trust in the information and those who provide it, and encouraging national meteorological services to tailor their information to the problem at hand.

Agricultural Management for Climate Change Adaptation, Greenhouse Gas Mitigation, and Agricultural Productivity

Source: International Food Policy Research Institution | June 2011

This report aims to identify strategies that the agricultural sector can adopt to mitigate and adapt to climate change, ensure food security, and improve the livelihoods of poor smallholder producers.

Agriculture is the main source of livelihood for poor people in developing countries, and improving agricultural productivity is key to achieving food security and meeting most targets set as part of the Millennium Development Goals. In Sub-Saharan Africa, climate change is adding to existing development challenges, making it essential that mitigation, adaptation and rural development strategies are developed together.

By focusing on the example of smallholder farmers in Kenya, the authors suggest "triple win" agricultural practices that promise the greatest payoff in terms of increased resilience of the agriculture sector to climate change mitigation, adaptation, productivity and profitability. They include irrigation, soil and water conservation, integrated soil fertility management and improved livestock feeding.

Enhancing Security in Afghanistan and Central Asia through Regional Cooperation on Water: Amu Darya Consultation Report

Source: EastWest Institute | May 2011

This report aims at encouraging increased trans-boundary cooperation in water resource management in Afghanistan and Central Asia, through a bottom-up, basin-based approach that adheres to the principles of Integrated Water Resource Management (IWRM)

The largest river in the region, Amu Darya, is crucial for the 43 million people who live in the Aral Sea Basin — but river flow and water availability are becoming increasingly unreliable because of the impact of climate change and inefficient water management. This is a security threat heightened by an expected 50 per cent increase in the region's population by 2025, says the report.

It calls for countries that rely on the Amu Darya — Afghanistan, Kyrgyzstan, Tajikistan, Turkmenistan and Uzbekistan — to follow the IWRM approach to balancing competing demands for water, build trust and share practices at the local level by training experts from different countries in joint forums, and avoid multilateral agreements that involve management mechanisms too broad to be effective.

Estimating Regions' Relative Vulnerability to Climate Damages in the CRED Model

Source: Stockholm Environment Institute | February 2011

This report introduces the Climate and Regional Economics of Development (CRED) model — a climate vulnerability index that estimates the economic damage from climate change in nine world regions based on three measures: freshwater resources per capita, the share of population living in coastal areas, and the percentage of gross domestic product (GDP) of climate-sensitive economic sectors.

The report reviews the current literature of climate change vulnerability indices and describes the CRED climate model, including the data sources and methods used to create the index. It presents the results by region and compares them with the results of other indices. It concludes that although other indices contain more variables that produce more detailed results, they are more difficult to interpret. CRED indicators are quantifiable, can be updated when new information becomes available, and inform climate change policy by identifying regions and countries where intervention to prevent damages is crucial.

What are the projected impacts of climate change on food crop productivity in Africa and S Asia?

Source: DFID

This paper reports the results of a systematic review of the impacts of climate change on crop productivity in Africa and South Asia. The study, funded by the UK Department for International Development (DFID), assessed eight food crops — rice, wheat, maize, sorghum, millet, cassava, yam, plantain and sugarcane — that make up more than 80 per cent of agricultural production in these regions. Its findings aim to inform DFID's policies, allocation of resources and other practices according to the need for a stronger focus on evidence-informed decision-making on agriculture in a changing climate. The report provides background information; a detailed account of the review protocol and methodology; the data extraction strategy; data collection; meta-analyses; a synthesis of results; and key findings for all crops organised by region. It recognises that climate change will worsen environmental conditions that already affect crops, such as heat, drought, salinity and submergence in water.

Understanding climate change from below, addressing barriers from above

Source: ActionAid | 2010

This report outlines the local, practical experiences and lessons learned from the action research project Climate Change Adaptation and Disaster Risk Reduction (CCA-DRR). The goal of the project was to help local people analyse their own vulnerability to the impacts of climate change and work collaboratively to explore better adaptation practices.

It ran from 2008 to 2010 in three areas of rural Bangladesh where natural hazards occur frequently: Sirajganj on the Jamuna River, which is vulnerable to floods; Naogaon in the north-west, vulnerable to drought; and Patuakhali on the coast, which is vulnerable to cyclones, sea-level rise and salinity intrusion.

The report includes an analysis of the strengths and weakness of activities that mobilise local communities to adapt to the impacts of climate change. It concludes with several recommendations for future policy and implementation, and highlights that local people are best placed to understand changes in their environment.

IPCC Fourth Assessment Report: Climate Change 2007 (AR4)

Source: Intergovernmental Panel on Climate Change (IPCC)

This report from the IPCC, provides a complete and comprehensive overview of the current knowledge and understanding of climate change. The report includes four separate documents that cover the physical science basis for climate change, projected impacts, adaptation and vulnerability of different populations, mitigation strategies, and a synthesis report for policymakers.

Vision 2030: The resilience of water supply and sanitation in the face of climate change

Source: WHO

This report presents the findings of the WHO's flagship Vision 2030 study. Comprised of a series of summary and technical papers and fact sheets, the Vision 2030 report provides a comprehensive overview of current and projected climate change and its potential impacts on drinking-water and sanitation systems. The report also points to solutions to improve the resilience of infrastructure and services to predicted changes in rainfall.

Comprehensive assessment of water management for agriculture

Source: International Water Management Institute (IWMI)

This book, published by IWMI, evaluates the benefits, costs and impacts of water development over the past 50 years. The authors highlight challenges still facing poor countries today and outline some of the solutions people have adopted. The assessment is available as a summary, with specific policy recommendations, or in individual chapters covering topics ranging from integration and institutional reform to improvements in irrigation and groundwater use.

Coping with water scarcity: challenge of the twenty-first century

Source: Food and Agriculture Organization (FAO)

This report, published to mark World Water Day 2007, reviews the multiple dimensions of water scarcity including increasing demand, competition and conflict and climate change. The authors consider opportunities for improving the efficiency of water use, suggesting the need to increase investments in water, value environmental services and build awareness of water scarcity among the general public.

Rethinking agriculture in the Greater Mekong Subregion

Source: International Water Management Institute | January 2010

This report considers strategies to help the Greater Mekong Subregion in South-East Asia meet food demands in the face of climate change. The authors predict likely effects of climate change on agriculture in the region and make recommendations to cope with these, including improving water efficiency and promoting broad-based agricultural development to reduce poverty.

China and a sustainable future: towards a low carbon economy and society

Source: UN Development Programme | April 2010

This report from the Chinese branch of the UN Development Programme investigates how China can reduce its heavy dependence on energy and resource consumption and move to a low-carbon economy. The authors suggest that the key lies in strengthening institutions, integrating policies, and enforcing implementation.

Promoting poles of clean growth to foster the transition to a more sustainable economy

Source: UNCTAD

This report discusses opportunities for developing countries to pursue low carbon growth within four key areas: energy efficiency, agriculture, and renewable energy technologies. It presents 20 essays — written by a wide range of economic, financial, climate and food crises experts — that focus on the prospects and hurdles facing least developed countries.

Arab Environment: Climate Change: impact of climate change on Arab countries

Source: Arab Forum for Environment and Development | December 2009

This report identifies the major impacts of climate change in the Arab world and outlines potential adaptation measures for the region. It aims to inform and shape climate change policy in the Arab world. Dwindling water resources, sea level rise, reduced food production, deteriorating biodiversity and declining tourism are highlighted as particular areas of concern.

The Earth Observation Handbook

Source: CEOS | 2008

This report, prepared by the Committee on Earth Observation Satellites (CEOS), presents the main capabilities of satellite systems and their applications to detect, monitor and adapt to climate change, alongside plans for future relevant satellite missions.

The report is divided into three parts. The first discusses the Earth's changing climate, emphasising the role of satellite imagery in monitoring this. The second presents a number of case studies to illustrate how earth observing satellites provide data to improve our understanding of climate change, including charting sea-level rise to better cope with flooding.

The final part summarises satellite capabilities with a description of the different satellite missions and instruments as well as their applications, such as to improve weather forecasting or provide damage assessment associated with natural disasters.

Using climate to predict infectious disease epidemics

Source: WHO | 2005

This report from the WHO assesses the potential for creating early warning systems for vector-borne disease. It reviews the current state of research for several diseases such as dengue fever, leishmaniasis, malaria and West Nile virus.

The report includes an algorithmic framework for developing early warning systems, outlining data requirements and the different components of the system. It also contains two useful tables: one on the sensitivity of different infectious diseases to climate; and one summarising the existing research, identifying in which region the disease is most common, data availability and proposed actions.

A key problem in developing early warning systems, as highlighted by this report, is that non-climatic risk factors such as population immunity and food security strongly affect the potential for a disease outbreak. Equally challenging is the poor disease surveillance in many developing countries — the authors call on these countries to strengthen these systems, to help in the fight against climate change.

The report concludes that it will be important for researchers not to design these systems in isolation — health policymakers should be included at all stages of the design.

Global climate change and extreme weather events: Understanding the contributions to infectious disease emergence

Source: Institute of Medicine | 2008

This extensive report from the Institute of Medicine of the US National Academies takes on the considerable challenge of understanding how, and to what extent, climate change will affect infectious diseases.

The report provides detailed summaries of current knowledge on diseases such as cholera and rift valley fever. Several pages are devoted to reviewing the latest climate science to contextualise the effect on infectious disease; it also includes several maps on climate anomalies to show how they are linked to disease.

One section highlights methods to assess climate change impacts on infectious diseases. These include analyses of historical records; monitoring programs, especially those that track disease in wild animals; and comparisons of satellite-derived environmental measurements with epidemiological data.

The report concludes with an analysis of the challenges facing policymakers. In many cases, it says, the best public health measures against climate change are those that strengthen health systems in general, such as better training for professionals and better disease surveillance. Policymakers will need to move away from the traditional thinking of individual policies for individual diseases, towards a joined-up approach aimed at tackling "systemic, long-term" stresses that cause a range of effects.

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