Green skills - IT Class 9
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Green skills are skills needed for promoting a green economy in areas like renewable energy, water treatment, sustainable cities, green construction, and waste management. Some key green skills include using renewable energy sources, water and waste management, rainwater harvesting, and conserving energy and reducing pollution. Green jobs are jobs that help preserve the environment in different sectors through sustainable practices and technologies. [END SUMMARY]
Green skills - IT Class 9
- 1. Green Skills Mr. Jagannath D. TGT- Social Science
- 3. Green Skills ? • The skills used for promoting green economy are known as green skills. These skills are needed in areas similar to renewable energy, sewer water treatment,climate resilient cities, green construction, solid waste management,etc. The Green Skills Agreement defines skills for sustainability as “Skills for sustainability, also known as green skills, are the technical skills, knowledge, values and attitudes needed in the workforce to develop and support sustainable social, economic and environmental outcomes in business, industry and the community.” Some of the areas in which green skills contribute to the sustainabledevelopment are as follows: a) using renewable energy (example, using solar power and wind energy) b) water and waste management c) rain water harvesting d) conserving energy e) reducing pollution
- 4. Introduction The environment around us affects all aspects of our life; and all our day-to-day activities also affect the environment. Those who live in cities get their food supply from surrounding villages and in turn, are dependent on forests, grasslands, rivers, seashores,for resources, such as water, fuel wood, fodder, etc. We use resources from which food is made and we depend on the community of living plants and animals, which form a web of life. Everything around us forms our environment and our lives depend on the flora and fauna around us. Similarly, our school environment comprises the physical and the socio-cultural environment. The physical environment includes the school building and the classrooms, library, laboratories corridors, kitchen, toilets, garden and also the playground. The sociocultural environment is manifested by the school, with climate teaching, by the teachers, student activities, inclusivity, attitude towards learning, social behaviour, discipline, respect for each other’s caste, religion and creed, achievement of students, etc. Over the years, with economic development, there has been an increase in environmental pollution. For example, with the advent of high input agriculture, we could grow more food by using fertilisers and pesticides and using hybrid crops, but it also resulted in the ill effects of overuse of chemicals, which led to soil and environmental degradation. This threatens the stability of the environment. We need to plan the maintenance of the areas in a sustainable manner so that we can enjoy the good environment created by us;it may be sustainable agriculture, developing eco-fashion design, manufacturing of solar panels, or designing environmentally sustainable homes.
- 5. Session 1- Society and Environment People live together in villages, cities, states and countries, thus forming a ‘Society’. Society interacts with the environment, and changes it at the same time. The interaction of the society with the environment sometimes affects the ecological balance in the environment. With the increase in population and economic activities, people’s interference with nature has started destroying the environment. The industrial development and intensive agriculture that provides the goods for our increasingly consumer-oriented society uses up large amounts of natural resources, such as water, minerals, petroleum products, wood, etc.
- 6. Natural Resources: A resource can be defined as any natural or artificial substance, energy or organism, which is used by human being for its welfare. 1) Land 2) Forest 3) Water 4) Mineral 5) Food 6) Energy
- 7. Natural Resources fall under the following main categories: a) Inexhaustible – Ex. solar radiation, wind power, water power and tidal power, b) Exhaustible – Ex.Coal c) Renewable – Ex.Water,Sun,Wind,Biomas,Soil,Forests, d) Non-renewable – Ex. Coal,Petroleum,LPG,Natural Gas (CNG),Minerals
- 8. Let us now discuss how some of these activities are damaging our earth and environment. 1) Overexploitation 2) Mining 3) Deforestation 4) Pollution – Land,Water,Air
- 9. Climate change • Have you ever sat in a car or bus which has been parked in an open area under the sun, with windows closed for a long time? Have you felt that it is much hotter inside a closed vehicle because the heated air is blocked inside? Similarly, the earth is becoming hotter because of burning fossil fuels (coal, petrol, diesel, etc.). These gases trap and prevent the earth’s heat from escaping, leading to a global warming. This is called the “greenhouse effect” • Forests are the main mechanism for the conversion of carbon dioxide into carbon and oxygen. The loss of forest cover, coupled with the increasing release of carbon dioxide and other gases through industrialization contributes to the ‘greenhouse effect’. Some greenhouse gases occur naturally and enter the atmosphere as a result of both natural processes (such as decomposition of organic matter) and human activity (such as burning fossil fuels and agriculture).
- 10. • Greenhouse gases that occur both naturally and from human activities include water vapour, carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O) and ozone (O3). Other greenhouse gases have essentially no natural sources, but are the side products of industrial processes or manufactured for human purposes, such as cleaning agents, refrigerants, and electrical insulators. These include the fluorinated gases: chlorofluorocarbons (CFCs), hydro chlorofluorocarbons (HCFCs), hydrofluorocarbons (HCFCs). This greenhouse effect causes snow to melt very fast. • Carbon dioxide emissions into the atmosphere from burning oil, coal and gas for energy use is a serious problem as it is harmful to the environment. Carbon dioxide in the atmosphere has increased by 31% since pre-industrial times, causing more heat to be trapped in the lower atmosphere. As a result, there are frequent floods and changes in climate as well as damage to crops and animal life.
- 11. Harmful radiation • You might be knowing that the atmosphere protects usfrom harmful radiation from the sun. This is done by a layer all around the earth, in the atmosphere, called the ‘Ozone Layer’. It is made of a gas called ‘Ozone’. This layer in the atmosphere protects us from the harmful radiation. • Cleaning chemicals, coolants in refrigerators and airconditioners, etc., release ozone depleting substances, such as chlorofluorocarbons in the atmosphere. These destroy the ozone in the atmosphere, making ‘holes’ in the ozone layer. The harmful radiation comes in through these ‘holes’ and cause increased incidence of health disorders, such as skin cancer.
- 12. Natural disasters • Natural disasters include floods, earthquakes,landslides, storms, etc. Our actions in exploiting natural resources for building structures, such as large dams and buidlings sometimes aggravates the impact of natural calamities and disasters. • Saving the environment: What can you do? • (i) Learning about the environment: Learning about the environment focuses mainly on acquisition of knowledge and understanding of our surroundings and related issues • (ii). Learning through the environment: Learning through the environment refers to the processes of learning while being engaged with environment inside and outside the classroom. • (iii). Learning for the environment: Learning for the environment aims at the development of an informed response and responsibility towards the environment
- 13. Reduce, Reuse, Recycle • There are three Rs which you can apply for saving the environment – Reduce, Reuse and Recycle. It is a concept of the modern waste management.
- 14. Actions for saving the environment Some actions that you can take for yourself and encourage your friends, family and neighbours to take are shown in Table.
- 15. Let us Discuss 1) What are the five sources of energy available to us? Give two examples of each source? 2) What are the sources of pollution? 3) Describe the relation between society and environment. 4) Explain the common environmental problems.
- 16. Session 2: Conserving Natural Resources In this session, you will learn about the actions that we can take to conserve natural resources. Conservation is the proper management of a natural resource to prevent its exploitation, destruction or degradation.Conservation is the sum total of activities, which can derive benefits from natural resources but at the same time prevent excessive use, which may lead to destruction or degradation. It means using them more efficiently and less wastefully.
- 17. Soil conservation Soil conservation means checking soil erosion and improving soil fertility by adopting various methods. Soil conservation can be useful for the following: 1) Maintenance of soil fertility: The fertility can be maintained by adding manure and fertilizers regularly as well as by rotation of crop. 2) Control on grazing: Grazing should be allowed only on specified areas. 3) Reforestation ; Planting of trees and vegetation reduces soil erosion. 4) Terracing :Dividing a slope into several flat fields to control rapid run of water. It is practised mostly in hilly areas. 5) Contour ploughing:Ploughing at right angles to the slope allows the furrows to trap water and check soil erosion by rain water.
- 18. Water conservation Conservation and management of water are essential for the survival of mankind, plants and animals. This can be achieved by adopting the following methods: • Growing vegetation in the catchment areas, which will hold water in the soil and allow it to percolate into deeper layers and contribute to formation of ground water. • Constructing dams and reservoirs to regulate supply of water to the fields, as well as to enable generation of hydroelectricity. • Sewage should be treated and only the clear water should be released into the rivers. • Industrial wastes (effluents) should be treated to prevent chemical and thermal pollution of fresh water • Judicious use of water in our day-to-day life. • Rainwater harvesting should be done by storing rainwater and recharging groundwater. • Watershed, which is a single unit of land with its water drainage system includes soil and water management for developing vegetative cover in the area
- 20. Food conservation Food conservation and storage have been practiced to feed mankind in times of shortage. Food is stored in warehouses on large scale and in refrigerators at home. Food is also preserved through various methods to prevent the spoilage due to harmful bacteria and other microorganisms.
- 21. Forest conservation Forest conservation means the retention of existing forest or the creation of new forest at the levels prescribed by the State or local authority. Participation of the community living in and around the forest is important for the success of the forest conservation programme.
- 22. Let Us Discuss 1) Write any three actions which you can take to conserve energy. 2) Describe any three methods of water conservation 3) What is the purpose of soil conservation? 4) State any three ways by which we can save energy.
- 23. Session 3: Sustainable Development and Green Economy After completing this session, you will be able to 1) Demonstrate the knowledge of green skills, green economy and green jobs. 2) Identify the green jobs in various sectors.
- 24. Sustainable development? “Sustainable development is defined as ‘development that meets the needs of the present without compromising the ability of future generations to meet their own needs” (World Commissionon Environment and Development, 1987).
- 25. Sustainable development includes the following: • reducing excessive use of resources and enhancing resource conservation • recycling and reuse of waste materials • scientific management of renewable resources,especially bio-resources. • planting more trees. • green grassy patches to be interspersed between concrete buildings. • using more environment friendly material or biodegradable material • use of technologies, which are environmental friendly and based on efficient use of resources.
- 27. Green Consumer A green consumer is someone who is very concerned about the environment and, therefore, only purchases products that are environment-friendly or eco-friendly. Products with little or no packaging, products made from natural ingredients and products that are made without causing pollution are all examples of ecofriendly products.
- 28. Green Economy • The term ‘Green Economy’ was first coined in a 1989 report for the Government of the United Kingdom by a group of leading environmental economists, entitled Blueprint for a Green Economy. • UNEP has defined the green economy as “one that results in improved human well‐being and social equity, while significantly reducing environmental risks and ecological scarcities. • It is low carbon, resource efficient, and sociallyn inclusive” (UNEP, 2011). A ‘Green Economy’ is a system which helps in economic growth while at the same time, taking care of the environment as shown in Figure 5.1.
- 29. Components of a Green Economy 1) Renewable energy 2) Green Building 3) Well-managed (Sustainable) transport 4) Water management 5) Waste management 6) Land management
- 30. Skill development for Green Economy • Green skills
- 31. Knowledge and skills needed for managing resources and supporting efficiency
- 32. What are green jobs? A ‘green job’ is employment in any industry that contributes to preserving or restoring environmental quality in that sector and allowing for sustainable development.
- 35. Green projects 1) Solid Waste Management by 'Swachh Cooperative’ 2) Modern Chulha of ‘Society of Development and Environment Protection 3) Biotoilet by ‘Green Solution Foundation’
- 36. Let us Discuss 1) What are green skills? 2) Give two examples of green skills that you can start learning from now.