22447_evs_ppt_uo 1e
This document was uploaded by user and they confirmed that they have the permission to share it. If you are author or own the copyright of this book, please report to us by using this DMCA report form. Report DMCA
Overview
Download & View 22447_evs_ppt_uo 1e as PDF for free.
More details
- Words: 1,012
- Pages: 14
Loading documents preview...
Program – CIVIL ENGINEERING Program Code – CE MSBTEs E-content
Expert-Dr. B. R. Ambade, LCE, G P Bramhapuri 06/07/2020 MSBTE LEAD- STUDY AT YOUR DOORSTEP
Course- ENVIRONMENTAL STUDIES Course Code – 22447 CO-a: Develop Public Awareness about Environment.
Unit Outcome- UO -1e
MSBTE LEAD- STUDY AT YOUR DOORSTEP
Written by
Dr. B. R. Ambade Course Expert and Coordinator
Topic-1 Environment
What we will learn today 1. Agenda point – Environmental issues
Understand about environmental issues and their impacts. Content 1.3 Environmental issues – Green house effects, Global Warming, Climate change and Acid rain.
Dr. B. R. Ambade Course Expert and Coordinator
Page 3
Maharashtra State Board of Technical Education
Sunday, November 08, 2020
Learning Objective/ Key learning ►
Page 4
1e. Describe various environmental issues.
Maharashtra State Board of Technical Education
Sunday, November 08, 2020
Concept Map Green House Effect
Nuclear Accidents
Environmental Issues
Ozone Layer Depletion Page 5
Global Warming
Maharashtra State Board of Technical Education
Climate Change Acid Rain
Sunday, November 08, 2020
Environmental Issues: 1. Green House TheEffect: phenomenon of increase in temperature of the earth
as in artificial greenhouse is called green house effect. The gases which are responsible for the greenhouse effect are called greenhouse gases [1]. A warming of Earth’s surface and troposphere (the lowest layer of the atmosphere) caused by trapping the heat in the form of infra red radiation near the earth surface by atmospheric constituents such as water vapour, carbon dioxide, methane, nitrogen oxides and Chloro Fluro Carbons. Environmental scientists estimated that the green house effect of carbon dioxide was 57%, chlorofluorocarbon was 25%, methane was 12% and that of the oxides of nitrogen was 6% [1; 2].
►
Source: Encyclopaedia Britannica, 2012
Footnotes
Page 6
Maharashtra State Board of Technical Education
Sunday, November 08, 2020
Environmental Issues: 1. Green House Effect: Effects on animals: It
has a role in spreading different types of diseases like malaria, filariasis, cholera, and diarrhoea etc due to rise in temperature. It has a role in increasing the number of vectors like insects transmitting diseases. Effects on plants: It affects water cycle, soil moisture and soil composition. As a result, there is a change in cultivation and harvesting periods of crops. Tropical plants are seen at the temperate region. It affects on yield of crops. Effects on climate: It increases the temperature of earth. It brings about the melting of ice in the Polar Regions, which increases the sea level due to which the low land coastal areas may sink and go underwater. It also changes the pattern of rainfall and weather conditions [1; 2; 3]. Page 7
Maharashtra State Board of Technical Education
Sunday, November 08, 2020
Environmental Issues: 2. Global Warming: Global warming is the phenomenon of rise in temperature of the earth by accumulation of green house gases. About 75% of the solar energy reaching the Earth is absorbed on the earth’s surface which increases its temperature. The rest of the heat radiates back to the atmosphere. Some of the heat is trapped by greenhouse gases, mostly carbon dioxide this responds to keep the temperature warmer [2; 3; 4]. Effects : • Temperature increases • Glaciers melt • Rising ocean levels • Alter forests, crop yields • Affect human health • Affect ecosystems • Season changes Page 8
Maharashtra State Board of Technical Education
Sunday, November 08, 2020
Global Warming Potential (GWP): ►
Global warming potential (GWP) for the 6 primary GHGs are summarized below:
Source: https://iasmania.com/greenhouse-effect-greenhouse-gases/
Page 9
GWP is the global warming impact that a GHG would have over a 10-year timeframe. By definition, CO2 is used as the reference benchmark [2]. Maharashtra State Board of Technical Education
Sunday, November 08, 2020
Environmental Issues: 3. Climate Change Climate is the average weather at a given point and time of year, over a long period (typically 30 years). We expect the weather to change a lot from day to day, but we expect the climate to remain relatively constant. If the climate doesn’t remain constant, we call it climate change [2; 4]. Changes in: – Sun’s output (Solar radiation) – Earth’s orbit – Drifting continents – Volcanic eruptions – Greenhouse gases
Page 10
Maharashtra State Board of Technical Education
Sunday, November 08, 2020
Environmental Issues: 4. Acid Rain Acid rain is basically rain that has a low pH. When fossil fuels such as coal, oil and natural gas are burned, chemicals like sulfur dioxide and nitrogen oxides are produced. These chemicals react with water and other chemicals in the air to form sulfuric acid, nitric acid and other harmful pollutants like sulfates and nitrates. These acid pollutants spread upwards into the atmosphere, and finally return to the ground in the form of acid rain [2; 4]. EFFECTS OF ACID RAIN Acid rain is an extremely destructive form of pollution, and the environment suffers from its effects. Land, Buildings, Forests, trees, lakes, aquatic life, animals, and plants suffer from acid rain.
Page 11
Maharashtra State Board of Technical Education
Sunday, November 08, 2020
Revision ► What ► ► ► ►
Page 12
we have learned today? Green house effect and its impacts. Global warming and its impacts. Climate change and its impacts. Acid rain and its impacts. Let’s Have a Quiz……
Maharashtra State Board of Technical Education
Sunday, November 08, 2020
References 1.
2.
3.
4.
5. 6.
Page 13
Dr Prabhu Prasadini and Dr G. Swarajya Lakshmi, ENVIRONMENTAL SCIENCE, BIRM 301 Study Material. Dr. Y. K. Singh, 2006. Environmental Science. NEW AGE INTERNATIONAL (P) LIMITED, PUBLISHERS, New Delhi, India. Prof. Erach Bharucha, 2004. Textbook for Environmental Studies. University Grants Commission, New Delhi. India. Michael Aaleby, 2000. Basics of Environmental science, 2nd Edition, Taylor & Francis Group, New York. www. Britanica.com www. Onlinesciencenote.com
Maharashtra State Board of Technical Education
Sunday, November 08, 2020
Section divider over two linesTHANK or three lines
YOU ALL
HAVE A NICE DAY
HAPPY LEARNING Page 14
Maharashtra State Board of Technical Education
Sunday, November 08, 2020
Expert-Dr. B. R. Ambade, LCE, G P Bramhapuri 06/07/2020 MSBTE LEAD- STUDY AT YOUR DOORSTEP
Course- ENVIRONMENTAL STUDIES Course Code – 22447 CO-a: Develop Public Awareness about Environment.
Unit Outcome- UO -1e
MSBTE LEAD- STUDY AT YOUR DOORSTEP
Written by
Dr. B. R. Ambade Course Expert and Coordinator
Topic-1 Environment
What we will learn today 1. Agenda point – Environmental issues
Understand about environmental issues and their impacts. Content 1.3 Environmental issues – Green house effects, Global Warming, Climate change and Acid rain.
Dr. B. R. Ambade Course Expert and Coordinator
Page 3
Maharashtra State Board of Technical Education
Sunday, November 08, 2020
Learning Objective/ Key learning ►
Page 4
1e. Describe various environmental issues.
Maharashtra State Board of Technical Education
Sunday, November 08, 2020
Concept Map Green House Effect
Nuclear Accidents
Environmental Issues
Ozone Layer Depletion Page 5
Global Warming
Maharashtra State Board of Technical Education
Climate Change Acid Rain
Sunday, November 08, 2020
Environmental Issues: 1. Green House TheEffect: phenomenon of increase in temperature of the earth
as in artificial greenhouse is called green house effect. The gases which are responsible for the greenhouse effect are called greenhouse gases [1]. A warming of Earth’s surface and troposphere (the lowest layer of the atmosphere) caused by trapping the heat in the form of infra red radiation near the earth surface by atmospheric constituents such as water vapour, carbon dioxide, methane, nitrogen oxides and Chloro Fluro Carbons. Environmental scientists estimated that the green house effect of carbon dioxide was 57%, chlorofluorocarbon was 25%, methane was 12% and that of the oxides of nitrogen was 6% [1; 2].
►
Source: Encyclopaedia Britannica, 2012
Footnotes
Page 6
Maharashtra State Board of Technical Education
Sunday, November 08, 2020
Environmental Issues: 1. Green House Effect: Effects on animals: It
has a role in spreading different types of diseases like malaria, filariasis, cholera, and diarrhoea etc due to rise in temperature. It has a role in increasing the number of vectors like insects transmitting diseases. Effects on plants: It affects water cycle, soil moisture and soil composition. As a result, there is a change in cultivation and harvesting periods of crops. Tropical plants are seen at the temperate region. It affects on yield of crops. Effects on climate: It increases the temperature of earth. It brings about the melting of ice in the Polar Regions, which increases the sea level due to which the low land coastal areas may sink and go underwater. It also changes the pattern of rainfall and weather conditions [1; 2; 3]. Page 7
Maharashtra State Board of Technical Education
Sunday, November 08, 2020
Environmental Issues: 2. Global Warming: Global warming is the phenomenon of rise in temperature of the earth by accumulation of green house gases. About 75% of the solar energy reaching the Earth is absorbed on the earth’s surface which increases its temperature. The rest of the heat radiates back to the atmosphere. Some of the heat is trapped by greenhouse gases, mostly carbon dioxide this responds to keep the temperature warmer [2; 3; 4]. Effects : • Temperature increases • Glaciers melt • Rising ocean levels • Alter forests, crop yields • Affect human health • Affect ecosystems • Season changes Page 8
Maharashtra State Board of Technical Education
Sunday, November 08, 2020
Global Warming Potential (GWP): ►
Global warming potential (GWP) for the 6 primary GHGs are summarized below:
Source: https://iasmania.com/greenhouse-effect-greenhouse-gases/
Page 9
GWP is the global warming impact that a GHG would have over a 10-year timeframe. By definition, CO2 is used as the reference benchmark [2]. Maharashtra State Board of Technical Education
Sunday, November 08, 2020
Environmental Issues: 3. Climate Change Climate is the average weather at a given point and time of year, over a long period (typically 30 years). We expect the weather to change a lot from day to day, but we expect the climate to remain relatively constant. If the climate doesn’t remain constant, we call it climate change [2; 4]. Changes in: – Sun’s output (Solar radiation) – Earth’s orbit – Drifting continents – Volcanic eruptions – Greenhouse gases
Page 10
Maharashtra State Board of Technical Education
Sunday, November 08, 2020
Environmental Issues: 4. Acid Rain Acid rain is basically rain that has a low pH. When fossil fuels such as coal, oil and natural gas are burned, chemicals like sulfur dioxide and nitrogen oxides are produced. These chemicals react with water and other chemicals in the air to form sulfuric acid, nitric acid and other harmful pollutants like sulfates and nitrates. These acid pollutants spread upwards into the atmosphere, and finally return to the ground in the form of acid rain [2; 4]. EFFECTS OF ACID RAIN Acid rain is an extremely destructive form of pollution, and the environment suffers from its effects. Land, Buildings, Forests, trees, lakes, aquatic life, animals, and plants suffer from acid rain.
Page 11
Maharashtra State Board of Technical Education
Sunday, November 08, 2020
Revision ► What ► ► ► ►
Page 12
we have learned today? Green house effect and its impacts. Global warming and its impacts. Climate change and its impacts. Acid rain and its impacts. Let’s Have a Quiz……
Maharashtra State Board of Technical Education
Sunday, November 08, 2020
References 1.
2.
3.
4.
5. 6.
Page 13
Dr Prabhu Prasadini and Dr G. Swarajya Lakshmi, ENVIRONMENTAL SCIENCE, BIRM 301 Study Material. Dr. Y. K. Singh, 2006. Environmental Science. NEW AGE INTERNATIONAL (P) LIMITED, PUBLISHERS, New Delhi, India. Prof. Erach Bharucha, 2004. Textbook for Environmental Studies. University Grants Commission, New Delhi. India. Michael Aaleby, 2000. Basics of Environmental science, 2nd Edition, Taylor & Francis Group, New York. www. Britanica.com www. Onlinesciencenote.com
Maharashtra State Board of Technical Education
Sunday, November 08, 2020
Section divider over two linesTHANK or three lines
YOU ALL
HAVE A NICE DAY
HAPPY LEARNING Page 14
Maharashtra State Board of Technical Education
Sunday, November 08, 2020
Related Documents
22447_evs_ppt_uo 1e
February 2021 2
1e - Public Law Notes.doc
January 2021 0
22447_evs_ppt_uo 1d 1e
February 2021 0
Nuevos Cuadernos De Teoria 1e
March 2021 0
D&d 1e Oriental Adventures Night Of The Seven Swords.pdf
January 2021 1More Documents from "Malek VonDrachenstein"
22447_evs_assessments _co1_all Uos
February 2021 2
22447_evs_ppt_uo 1d 1e
February 2021 0
22447_evs_ppt_uo 1a 1b 1c
February 2021 0
22447_evs_ppt_uo 1e
February 2021 2
218341361-case-law-digest-on-will-and-probate.pdf
January 2021 0