Environmental Issues Their Causes and Sustainability Growth Development

Environmental Issues, Their Causes, and Sustainability Growth & Development Resources & Pollution Problems in the Environment Chapter 1 10/21/2021 1

Environmental Issues Journal • What is sustainability? • Discuss the correlation, if any, between human population and natural resource consumption. • Do you believe that the current lifestyle of the US is sustainable? Analyze your lifestyle; how would resources be affected if everyone on Earth lived the way you do? 10/21/2021 2

Key Concepts Ø Growth and Sustainability Ø Resources and Resource Use Ø Pollution Ø Causes of Environmental Problems 10/21/2021 3

The Field of Environmental Science • Environmental Science is interdisciplinary, and includes _________ and ______ aspects of ______ impact. – Incorporates scientific aspects of ______, conservation, geography, with inputs ______ sciences such as _____, sociology and political science. 10/21/2021 4

Q: What classes have you taken that are interdisciplinary with Environmental Science? 10/21/2021 5

Interrelated Nature Environmental Problems • ______ is everything that affects an organism during its lifetime. 10/21/2021 6

An Ecosystem Approach • Ecology- the study __________________ • Ecosystem: Region in which the organisms and the ___________ form an interacting unit. (living and nonliving things) – The task of an Environmental Scientist is to recognize and understand natural interactions and integrate these with human uses of the natural world. 10/21/2021 7

What is the task for Environmental Scientists? • ___________________________________________ 10/21/2021 8

Living More Sustainably • Sustainability- (1) _____________________ & (2) ____________ earth’s endowment of natural capital that supplies this income • Sustainable Society-satisfying the basic needs of the people for food, clean air & water, and shelter indefinitely without (1) depleting or degrading natural resources & (2) preventing future generations from meeting their basic needs 10/21/2021 Refer to Spotlight on p. 5 9

Population Growth Ø Exponential Growth- Growth in a species that takes place at a ___________________ Ø Doubling Time/ ____ Rule of 70 - 70 divided by percentage growth rate=doubling time 10/21/2021 Fig. 1 -2 p. 4 10

Graphing Population Curve • Draw a line graph representing the human population growth curve from 1904 until 2054. 10/21/2021 11

Critical Thinking: • Why do you think there has been a population explosion world wide? Discuss 3 world factors that impact population. 10/21/2021 12

World Population Fig. 1 -1 p. 2 10/21/2021 13

Economic Growth • ___________ (GNP)- the value of all the goods and services produced within and outside of a country during a year plus the net income earned by its citizens • __________ (GDP)-the value in dollars of all goods and services produced within a country • _______________ (GWP)- the value of all the goods and services produce in the world during a year • Per Capita Income GNP- GNP divided by the population at mid-year; each persons “slice of the pie” 10/21/2021 14

Economic Development • Developed countries • (MDC)- (_____) highly industrialized with high per capita GNP; represent 20% of the worlds pop that control 85% of wealth; 88% of resources and produce 75% of pollution and waste 10/21/2021 Developing countries (LDC)(_____) low per capita GNP; represent 95% of the projected increase in the worlds population 15

The Good of Economic Growth • Positive – Increased ____________ – Increased ________ – Safe __________ in Rural Areas – Increased Production with fewer materials – ______ in Major _________ (since 1970 s) in MDC 10/21/2021 16

The Bad of Economic Growth • Negative– Life Expectancy _____ in LDCs (low developed countries) – _______ is 8 times ______ in LDCs – Less Sustainability in Agricultural Practices – _________________ (WHO) – Increased Demand on Resources (pop) – _________of Habitable Surface (73% already) – _____ from Burning of Fossil Fuels – ***1 in 4 __________________ – ______ Increase (___ get _____, ____ get _____) 10/21/2021 17

Globalization • Globalization-the process of ______, ____ environmental and _______ change that leads to an _____________ world; Three major indicators: – ________ – ______ and _______ – ______________ 10/21/2021 18

Resources Ø ___________ Ø ____-____ 10/21/2021 Fig. 1 -6 p. 9 19

Renewable Resources Ø ________- the ________ of ________ in which it can be used indefinitely _____ its available ______ Ø Environmental Degradation- _____ a _________ causing the resource to decrease ØUrbanization of __________ ØExcessive ______/___________ Ø______/_________ Ø Decreased _________ 10/21/2021 20

Non-Renewable Resources Ø Energy- _____, ____________ Ø Metallic- _____, aluminum (recycleable) Ø Non-Metallic- _______, sand, clay, _____ 10/21/2021 Economic Depletion Fig. 1 -7 p. 10 21

Ecological Footprint 10/21/2021 Fig. 1 -8 p. 10 22

Quick Assessment: • Analyze the Economical Footprint Graph. • What Country has the highest economical footprint per capital income per acre? • What country is reducing its economical footprint? • Discuss the trend in India’s Economical footprint. • ___________________________________________ ________ 10/21/2021 23

Pollution Ø Pollution- any ______ of a _____ into the environment that _________ organisms; can either be _______ or _____ (_______) Ø_______ activity ØBurning of ______________ Ø Effects of PollutionØDisrupt ______ systems for _____ ØDamage to species and property ØUnwanted _____________ 10/21/2021 24

Quick Assessment • How is pollution defined? ________________ • What does “anthropogenic” mean? • Cite and describe several natural and manmade (more than 3) causes that determine the effects of pollution on the environment. • _____________________________________ 10/21/2021 25

Pollution Sources Ø __________- pollution that comes from a ______ source Ø_______________ Ø____(cars) Ø _____ Source- pollution that comes into an area from another, _______, region Ø_____ (pesticides) Ø Sprayed pesticides & materials _______ 10/21/2021 26

Dealing With Pollution Ø Prevention (_____)the reduction or elimination of pollutants ØR______, r_______, r_____ & r_______ Ø Cleanup (_______)______________; issues Ø________ as long as consumption of product continues ØTransient-______________ 10/21/2021 27 Ø______- generally passed to the consumer

• • Air Pollution Global climate change Stratospheric ozone depletion Urban air pollution Acid deposition Outdoor pollutants Indoor pollutants Noise Biodiversity Depletion • Habitat destruction • Habitat degradation • Extinction • • Major Environmental Problems • • Water Pollution Sediment Nutrient overload Toxic chemicals Infectious agents Oxygen depletion Pesticides Oil spills Excess heat 10/21/2021 Environmental Problems Waste Production • Solid waste • Hazardous waste • • • Food Supply Problems Overgrazing Farmland loss and degradation Wetlands loss and degradation Overfishing Coastal pollution Soil erosion Soil salinization Soil waterlogging Water shortages Groundwater depletion Loss of biodiversity Poor nutrition 28

Quick Assessment • Review the Major Environmental Chart and create your own with 3 -5 examples under each category. In your opinion, what problems do you consider the most threatening to the environment? 10/21/2021 29

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Environmental and Resource Ø Five Root Causes Problems 10/21/2021 31

Environmental Impact 10/21/2021 Fig. 1 -11 p. 13 32

Environmental Interactions 10/21/2021 Fig. 1 -12 p. 14 33

Quick Assessment: • Review the images for Environmental Resources and Problems, Environmental Impact, and Environmental Interaction. • Discuss the 3 relationships each image has with another chart. You may want to create a Venn diagram or graphic organizer to help you visualize your thoughts. 10/21/2021 34

Environmental Worldviews Ø Planetary Management-humans are dominate and decide how to best manage the planet ØHumans are in charge ØThere will always be more (unlimited supply) ØEconomic growth is good…always ØSuccess depends on our ability to dominate, understand control nature ØTechnology will inevitably save mankind 10/21/2021 35

Environmental Worldviews Ø Environmental Wisdom- human beings are like other species and rely on the earth to survive ØNature does not exist just for us; we need the earth but the earth does not need us ØLimited Resources should not be wasted ØSome economic growth is good, other types are not; encourage the good ØUnderstand the earth to learn to live in harmony with it; the more informed, the better our decisions 10/21/2021 36

Quick Assessment • Review the “Worldviews” • In four ways, compare or contrast the Environmental Worldviews. • Choose 3 statements that you agree with and describe your views (please paraphrase or write out those statements) • Choose 3 statements where your viewpoint differs from the worldview. Explain your perspective (please paraphrase or write out those statements) 10/21/2021 37

Environmentally-Sustainable Economic Development Social Economic Sustainable Solutions Environmental Traditional 10/21/2021 decision making Environmental Fig. 1 -13 p. 17 Decision making in a sustainable society 38