UNIT 1 EVS(Mechanical engineering)..pptx

environmental studies unit-1 ppt of mechanical engineering.

1. Subject: Environmental Studies

2. Unit- I The Multidisciplinary Nature of Environmental Studies.

3. Topics Definition, scope and importance. Need for public awareness.

4. Definition of Environment Environment is derived from the French word Environner which means to encircle or surround. According to Environment (Protection)Act, 1986 e nvironment is defined as “ the sum total of water, air and land and the inter- relationships that exit among them and with the human beings, other living organisms and materials.” Cont.

5. Definition of Environmental Studies Environmental studies deals with every issue that affects a living organism . It deals with working of earth, its life support systems, its interactions, influences, its problems and solutions

6. How is Environmental Studies Multi- Disciplinary in Nature? Life Sciences Physical Sciences (Biology, Microbiology etc ) (Physics, Chemistry, Earth Science etc) Mathematics, Environmental Civil Engineering Statistics Studies Chemical Engg. Computer science etc Economics, Politics, Law, Management Mass communication

7. Scope of Environmental Studies Environmental Studies has a wide scope and it include large number of areas like: Natural Resources Ecology and biodiversity Environmental pollution and control Social Issues in relation to development and environment Human population and environment

8. In the recent years the scope of environmental studies has expanded a lot all over the world and several career opportunities have emerged in this field which can be categorized as: Research & Development in environment Green advocacy Green marketing Green media Environmental consultancy

9. Importance of Environmental Studies Some important dates related to environment World Wetland Day February 2 nd World Forest Day March 21 World Day for Water March 22 Earth Day April 22 World Environment Day June 5 th World Population Day July 11 Ozone Week Sept.16-23 Wildlife Week Oct. 1-7

10. Importance of Environment Environment belongs to all, influences all and is important to all. Environmental values Direct value Indirect value Optional value

11. Direct value Consumptive use e.g. food, medicines, fisheries etc Productive use e.g. timber, fuel wood etc 2. Indirect value Aesthetic value A legacy for future generations Forest as carbon sink Option value future medicinal or agricultural plants

12. Environmental services Global Regional Local Photosynthesis Prevent soil erosion Consumptive Maintain natural Flood control use by local cycles people Prevent greenhouse Micro- climate Wildlife effect control tourism

13. Importance of Environmental Studies Identify the problem and find their solution is the basic aim of environmental studies. Hazardous impacts of modern agriculture practices can be explained and people will be made aware of these impacts. Aspects of mining operations will be studied Various global problems can be discussed like global warming ,acid rain etc Impacts of deforestation will be discussed Study of renewable and non renewable energy resources

14. Need for Public Awareness What is the need for public awareness? Rapidly changing technologies lead to abandoned wastes. Our fast and energy demanding life style pollutes the environment Crazy consumerism leads to environmental degradation The earth has a definite capacity to tolerate pollutants and sustain populations.

15. Public awareness can be done by: Mass media such as newspapers, radio and television strongly influence public opinion. NGOs Skits, posters etc Practice and promote good civic sense and hygiene Practice and promote issues such as saving water, saving paper, reducing the use of plastics.

16. Sustainable Development The concept of  sustainability   first appeared in the Brundtland Report, published in 1987. This document which was also referred to as  Our Common Future. Sustainability is development that satisfies the needs of the present without compromising the capacity of future generations, guaranteeing the balance between economic growth, care for the environment and social well-being.

17. Key aspects for sustainable development Inter-generational equity: we should minimize any adverse impacts on resources and environment on future generation i.e. we should hand over a safe, health and resourceful environment to future generations. Intra-generational equity: the development process should seek to minimize the wealth gaps within and between the nations.

18. Measures for Sustainable Development Using appropriate technology: which is locally available, eco-friendly, resource efficient. Reduce, Reuse, Recycle and Refuse approach. Prompting environmental education and awareness Resource utilization as per carrying capacity. Improving quality of life including social, cultural and economic dimensions.

19. Institutions in Environment BNHS(Bombay Natural History Society) Major contribution in the field of wildlife research. Publishes magazine Hornbill. Botanical Survey of India Survey and exploration of plant resources Listing of endangered plants. Nomenclature of plants

20. 3. Central Pollution Control Board Emission norms for controlling ail pollution Monitoring of ambient air and water quality. 4.Centre for Science and Environment Organizing campaigns ,workshops and conferences Environment- related publications Publish magazine Down to Earth