Downloaded 363 times
![The water, energy and food security nexus means that the
three sectors — water security, energy security and food
security — are inextricably linked and that actions in one
area more often than not have impacts in one or both of
the others.
• Water security is defined in the Millennium Development Goals (MDGs) as "access to
safe drinking water and sanitation", both of which have recently become a human
right. While not part of most water security definitions yet, availability of and access
to water for other human and ecosystem uses is also very important from a nexus
perspective.
• Energy security has been defined as "access to clean, reliable and affordable energy
services for cooking and heating, lighting, communications and productive uses"
(United Nations), and as "uninterrupted physical availability [of energy] at a price
which is affordable, while respecting environment concerns".
• Food security is defined by the Food and Agricultural Organization (FAO) as
"availability and access to sufficient, safe and nutritious food to meet the dietary
needs and food preferences for an active and healthy life". Adequate food has also
been defined as a human right.](https://image.slidesharecdn.com/sdfinal-160423070037/75/SUSTAINABLE-DEVELOPMENT-16-2048.jpg)
More Related Content
Similar to SUSTAINABLE DEVELOPMENT
SUSTAINABLE DEVELOPMENT
- 1. SUSTAINABLE DEVELOPMENT THE WATER ENERGYFOOD NEXUS: EFFECTS ON LIVLIHOODS OF COMMON MAN GUIDED BY- Prof- G.S. Bramha Prof- Sri Lalitha Prof- Renu Rani Presented by- Gayathri Naidu
- 2. OVERVIEW- What arenatural resources? The link between population growth and the use of world’s resources What is sustainable development? Importance of sustainable development How can we achieve SD? Principles of sustainable society Evolution of Water energy food security Nexus Discuss the importance of security Nexus Effects of security Nexus on the livelihood of common man.
- 3. WHAT IS ANATURAL RESOURCE? • Any thing that we extract from the biosphere or the physical landscape to accommodate the needs of man is defined as a natural resource. • A natural resource is further classified as – Renewable & Non Renewable • Resources. • Examples – • Renewable resources- Solar energy, Wind energy, Tidal energy & Biomass • Non-Renewable resources- Fossil fuels such as oil, Natural gas, coal. ++ RESOURCE ACTIVITY + PRODUCTS = WASTE +
- 4. POPULATION GROWTH &ENVIRONMENT • Population growth results in High levels of consumption and industrialization, inequality in wealth and land distribution, inappropriate government policies, poverty, and inefficient technologies all contribute to environmental decline. • Many of the world's population live in poor countries already strained by food insecurity; inadequate sanitation, water supplies and housing; and an inability to meet the basic needs of the current population. • Clearly one of the challenges of a growing population is that the mere presence of so many people sharing a limited number of resources strains the environment.
- 5.
- 6. China & IndiaAre Building 4 New Coal Power Plants – Every Week! More than 1,000 new coal plants are planned worldwide, with about three-quarters of these in China and India alone Coal, oil and gas are Fossil Fuels. Iron ore mine, Australia Similarly, minerals are also extracted from their ores by digging.
- 7. Forest resources are exploitedfor the production of Timber, also causing havoc for the inhabitant animal species To think about: What do you think will be the impact of these types of fishing on the resources of the sea?
- 8. Sustainable development o Developmentmeans making life better, to have a better standard of living and an improved quality of life o Sustainable Development means making sure that the things we do, the goods we buy and the lifestyle we have today will not harm the environment for us, for people in other places and for future generations
- 9. The Brundtland Definition(1987) “Sustainable development is development that meets the needs of the present without compromising the ability of future generations to meet their own needs.”
- 10. o Looking atlevels of consumption and waste o Thinking about our careful use of the Earth's resources o Realising that we are each responsible for our actions, and that what we do can have a huge effect on other people, and places o The environment pillar of sustainable development is crucial; once we understand that the resources that the planet offers are finite it becomes clear that current methods of consumption are using up more resources than the planet can afford. o The approach towards sustainable development should encompass all aspects and take into consideration the fact that everything is connected: across generations and across countries
- 11. o THE PRINCIPLEIS TO LOOK AT EVERYTHING AS PART OF A WHOLE: THE ISSUES WHICH WE FACE ARE MULTIPLE, AND COMPLEX. WE NEED A HOLISTIC VISION, WHICH LOOKS AT THE WELLBEING OF MAN AND THE PLANET TOGETHER THE SYSTEMS APPROACH- When we think of sustainable development we must think of a system where the decisions taken ensure that every component of the system – man, trees, environment, society, wealth, is capable of flourishing without hindering the capacity of the other component to do so, whether in the present or in the future
- 12. ECONOMIC SOCIAL ENVIRONMENTAL •opportunities for growth • increased GDP and benefits • system stability and security • Green jobs and eradication of unemployment • Prevention of practices which misuse resources • Regulation of over- exploitation and harmful externalities • Participation and inclusion of everyone • eradication of poverty and exclusion • food security • equitable distribution of resources • better life chances and opportunities • protection from exploitative Protection of ecosystems and biosphere • increased quality of air, land, water • better management of waste and pollution • respect and protection for all species - flora, fauna, marine species • measures to ensure resource sustainability and harmony
- 13. Many conflicting viewsof sustainable development believe that it is actually anti- growth and anti-wealth. On the contrary, SD is about balance and a holistic approach to development. This means that some things need to be preserved and sustained while others should be given the incentive to be developed. What needs to be sustained What needs to be developed. o People and cultures o Natural Resources o Biodiversity o Environment and Ecosystems o Quality of life o Justice and social equality Equal opportunity o Institutions o Culture of sustainability Fair income Dialogue and Communication
- 14. NEXUS APPROACH The term“Nexus” in Latin describes the act of tying together or something which binds. In connection with environmental resource management, the term nexus was introduced for the first time during the 1980s, notably in a project by the UN University (Food-Energy Nexus programme, (Sachs and Silk 1990)). The nexus perspective emphasizes the inter-relatedness and interdependencies of these environmental resources and their transitions and fluxes across spatial scales and between compartments. Instead of just looking at individual components, the functioning, productivity and management of a complex system is taken into consideration.
- 15. WATER ENERGY FOODSECURITY NEXUS
- 16. The water, energyand food security nexus means that the three sectors — water security, energy security and food security — are inextricably linked and that actions in one area more often than not have impacts in one or both of the others. • Water security is defined in the Millennium Development Goals (MDGs) as "access to safe drinking water and sanitation", both of which have recently become a human right. While not part of most water security definitions yet, availability of and access to water for other human and ecosystem uses is also very important from a nexus perspective. • Energy security has been defined as "access to clean, reliable and affordable energy services for cooking and heating, lighting, communications and productive uses" (United Nations), and as "uninterrupted physical availability [of energy] at a price which is affordable, while respecting environment concerns". • Food security is defined by the Food and Agricultural Organization (FAO) as "availability and access to sufficient, safe and nutritious food to meet the dietary needs and food preferences for an active and healthy life". Adequate food has also been defined as a human right.
- 17. NEXUS CHALLENGES- WATERSECURITY (CASE STUDY IN KATHMANDU) • Growing water demand for agriculture, energy, industry, human & livestock • Uneven endowment of water resources • Almost 90% water is consumed by the agriculture sector • Groundwater depletion: 70-80% of the agricultural production depends on groundwater irrigation • Water pollution – arsenic, water borne diseases, high child mortality, poor human health, salinization • About 20% of the population lack access to safe drinking water
- 18. FOOD SECURITY- Food productionneeds to be doubled in next 25 years • Per capita agricultural land has been declining • Rice & wheat- high water & energy demanding • Increased production needs to come from limited or shrinking areas of cultivable lands • Intensification of agriculture has led to a great dependence on water & energy • Competition for land for food and bio-energy crops & ecosystem services.
- 19. ENERGY SECURITY Widening demand- supply gap • 63% no electricity -65% use biomass for cooking • Shortage of energy impedes economic growth • Meeting growing energy demand for agriculture, water, industry & other economic activities • High dependence on traditional sources, fossil fuels, imported energy • Reducing reliance upon fossil fuels & carbon
- 20. EFFECTS ON THELIVELIHOOD OF COMMON MAN With 3% of land, SA has to feed 20% population • Per capita agricultural land has been declining • Population will reach 2.2 billion in 2050 • Cereal demand will increase from 241 476 million MT in 2050 • Increased production needs to come from limited or shrinking areas of cultivable lands • Water demand for irrigation will increase about 70% • Fertilizer demand will increase over 100%
- 21.