7th Grade Natural Resources and Human Impact

Transcription

1 Slide 1 / 144

2 Slide 2 / 144 7th Grade Natural Resources and Human Impact

3 Slide 3 / 144 Natural Resources and Human Impact Table of Contents Natural Resources Click on the topic to go to that section Renewable vs Nonrenewable Resources Geological Processes Human Impacts Reducing our Ecological Footprint

4 Slide 4 / 144 Natural Resources Return to Table of Contents

5 Slide 5 / 144 Natural Resources Natural resources are an essential part of life on Earth. When you hear the term "natural resources", what ideas pop into your mind? Write them below.

6 Slide 6 / 144 What are natural resources? Natural resources, such as oxygen, food and water keep us alive.

7 Slide 7 / 144 What are natural resources? Other natural resources like the sun, wind and oil provide us with energy that can be used for food, electricity and transportation.

8 Slide 8 / 144 What are natural resources? Products and goods that we use every day are manufactured using natural resources as raw materials. What are some different ways that trees are used to create products that we use every day?

9 Slide 9 / 144 What are natural resources? Based on this information about natural resources, can you come up with a definition? Natural resources are:

10 Slide 10 / 144 Natural Resources A natural resource is a living or non-living part of nature that supports life on Earth.

11 Slide 11 / 144 Biotic vs Abiotic Natural resources can be categorized as living or nonliving. Living components, like a cotton plant, are called biotic. Nonliving components, like sunshine or water, are abiotic.

12 Slide 12 / 144 Biotic vs Abiotic Circle all of the abiotic natural resources. Cod Iron Wind Pine forest Sunlight Bamboo

13 Slide 13 / Clothes are an example of a natural resource because you need them to protect you from outside elements. True False

14 Slide 14 / Biotic and abiotic components of an environment... (Select all that apply. ) A B can serve as natural resources are fundamentally different C D are basically the same thing help us in our daily lives

15 Slide 15 / Vegetables provide food for many different organisms. They are. A biotic B abiotic

16 Slide 16 / 144 Sources of Natural Resources Most of the natural resources that humans and animals depend on come from the four "spheres."

17 Slide 17 / 144 Atmosphere The atmosphere is composed of different gaseous elements that are natural resources essential for life.

18 Slide 18 / 144 Sources of Natural Resources With a partner, brainstorm products from the atmosphere. Write some class ideas below.

19 Slide 19 / 144 Nitrogen in the Atmosphere Gaseous nitrogen in the atmosphere is converted into ammonia and nitrates by bacteria. Ammonia and nitrates are used by plants to grow. Humans and animals eat plants to survive!

20 Slide 20 / 144 Oxygen in the Atmosphere Humans and animals need to breathe in the oxygen in the air in order to complete cellular respiration. Respiration is needed for cells to create proteins, to grow and to repair themselves. Without oxygen our cells would die and, therefore, so would we!

21 Slide 21 / 144 Atmospheric Weather: Wind Weather occurs in the lowest part of the atmosphere (called the troposphere) and produces wind. This wind can be a natural resource as its energy can be changed into electrical energy.

22 Slide 22 / 144 Hydrosphere The hydrosphere includes all of the water in Earth's atmosphere and on its surface. The water is continuously moved between the air and land through the water cycle.

23 Slide 23 / 144 Sources of Natural Resources With a partner, brainstorm products from the hydrosphere. Write some class ideas below.

24 Slide 24 / 144 Hydrosphere: Water Water is a natural resource that we use everyday for: drinking (fresh water) washing and cooking agriculture (farming) energy for electricity production industry and manufacturing goods How do each of these activities support human life?

25 Slide 25 / Natural resources can be found in the lithosphere, atmosphere, biosphere and hydrosphere. True False

26 Slide 26 / Gaseous nitrogen is found in the air and therefore cannot interact with plants that are on the ground. True False

27 Slide 27 / Oxygen is. (Select all that apply.) A B C D a gas found in the atmosphere used only by humans essential for perspiration (sweat) needed to grow muscle cells

28 Slide 28 / Natural resources from the atmosphere include all of the following except: A oxygen used for respiration B coal used for energy C wind used for energy D nitrogen used for plant growth

29 Slide 29 / Water is an important natural resource from the lithosphere. True False

30 Slide 30 / 144 Lithosphere The lithosphere is the outermost crust of Earth. It is 15km - 300km thick and is a rich source of various natural resources. Source: physicalgeography.net

31 Slide 31 / 144 Sources of Natural Resources With a partner, brainstorm products from the lithosphere. Write some class ideas below.

32 Slide 32 / 144 Natural Resources in the Lithosphere Natural resources that come from the lithosphere include: soil fossil fuels (such as coal, oil and gas) stone, sand and gravel elements and minerals (i.e. silver, copper, salt, lead, aluminum, zinc, gold, diamond, iron, etc...) to grow plants that we eat provides power for vehicles, machines used in agriculture, industry and our homes often used in construction What are some possible ways we could use these natural resources? Click on the box for some examples. has a wide range of uses including machine parts, steel products, and electrical equipment

33 Slide 33 / 144 Biosphere The biosphere is the area of Earth's surface that can support life. It includes the lithosphere, hydrosphere and the lower atmosphere. All biotic parts of nature such as plants and animals live in the biosphere. Source: ucar.edu

34 Slide 34 / 144 Sources of Natural Resources With a partner, brainstorm products from the biosphere. Write some class ideas below.

35 Slide 35 / 144 Biosphere What natural resources from the biosphere are pictured below? How could each be used? Click on each images for the answers. Timber from forests can be used as construction material for houses. Plants provide food for humans and animals. Animals themselves can be resources because they support plant growth. Wood and other organic matter provide energy.

36 Slide 36 / 144 The Sun The Sun is not in any of the previously mentioned spheres because it is not a part of Earth. Despite this, it is still a valuable natural resource. How does our Sun help support life here on Earth? Think about other topics we have covered in science this year. Discuss with your table and then click on the picture to find out! to harness energy (solar panels) to grow plants for food to support human health (Vitamin D)

37 Slide 37 / 144 Natural Resource Categories Natural resources can be divided into the following categories: Forest Resources Water Resources Energy Resources Food Resources Mineral Resources We will discuss these categories in detail later in this unit!

38 Slide 38 / Natural resources that can provide energy can be found in which "sphere"? (Select all that apply.) A Atmosphere B Lithosphere C Hydrosphere D Biosphere

39 Slide 39 / The biosphere supports living components of nature. True False

40 Slide 40 / Soil, fossil fuels, minerals and gravel can all be found in the. A B C D biosphere hydrosphere lithosphere atmosphere

41 Slide 41 / The biosphere. (Select all that apply.) A includes part of the atmosphere B C D supports life includes the outer crust of Earth does not include water

42 Slide 42 / 144 Renewable vs Nonrenewable Resources Return to Table of Contents

43 Slide 43 / 144 Renewable vs. Nonrenewable What is the difference between the words renewable and nonrenewable? The pictures below show library books and rechargeable batteries. One is renewable and one is nonrenewable. Which is which? How can you use this example to define the two terms?

44 Slide 44 / 144 Nonrenewable Resources Nonrenewable resources are those that form over very long periods of time and can take millions of years to regenerate. Because they take so long to form, nonrenewable resources are considered to be irreplaceable. Once we use them up, they are essentially gone!

45 Slide 45 / 144 Renewable Resources On the other hand, renewable resources can be replenished or reproduced over a short period of time. This is a bamboo forest in Kyoto, Japan. Bamboo grows incredibly quickly and, thus, is a renewable resource. It has been known to grow up to 250 cm (98 in) in just 24 hours! Bamboo has many uses, including cooking, medicine and construction.

46 Slide 46 / 144 Renewable vs Nonrenewable Renewable and nonrenewable resources often refer to energy sources. Click here to watch a video comparing renewable and nonrenewable energy. As you watch, answer the following questions: What are three examples of renewable energy sources? Why is coal considered nonrenewable? Over millions of years, intense pressure and temperatures turns buried vegetation into coal.

47 Slide 47 / A nonrenewable resource can be replenished, but it would take a very long time. True False

48 Slide 48 / Which of the following is an example of a natural resource that is renewable? A B C D natural gas iron ore deposits copper radiation from the sun

49 Slide 49 / Plants are a nonrenewable resource. True False

50 Slide 50 / 144 Distribution of Natural Resources None of the resources on Earth, renewable or nonrenewable, are evenly distributed. This means that there are many areas of this world that do not have easy access oil, precious metals or natural gas. Additionally, there are just as many people who do not have access to clean drinking water or plants for food.

51 Slide 51 / 144 Oil Reserve Distribution Oil is not evenly distributed around the world. What types of struggles can this lead to? Oil Reserves by Country

52 Slide 52 / 144 Agriculture Distribution Even land used for agriculture varies by location. Why is it not possible to have agriculture everywhere?

53 Slide 53 / 144 Minerals Distribution Different minerals can be found all over the world. A lot of these minerals, such as African diamonds, are shipped to other regions.

54 Slide 54 / 144 Freshwater Distribution The map shows the amount of water available to people worldwide. What areas of the world do not have access to much freshwater? Why do you think this may be?

55 Slide 55 / 144 Water Use: USA This map shows water usage in the United States. How much water does your state use? How does this compare to other states?

56 Slide 56 / 144 Water Use: USA In what ways do you think we are using water? How many categories can you come up with? Write them below and then click in the box to see the distribution of water usage in the United States.

57 Slide 57 / 144 Water Usage There are many products that have "hidden" water requirements. For example, raising livestock consumes a large a mount of water. So, every time you eat a hamburger, it costs up to 18,000 gallons of water! Click here to check your knowledge about water requirements for different products.

58 Slide 58 / Renewable resources are evenly distributed while nonrenewable resources are not. True False

59 Slide 59 / 144 Geological Processes Return to Table of Contents

60 Slide 60 / 144 Geological Processes Many of the nonrenewable natural resources that we use were formed millions of years ago due to geological processes, or changes to the materials that make up Earth. It took millions of years for this iron deposit to form. If we extract it faster than it can be replaced, there will be no more iron here.

61 Slide 61 / 144 Geological Processes Geological processes that affect natural resource formation include: Igneous processes (involves lava or magma) Metamorphic processes (involves heat or pressure) Surface processes Sedimentary processes (involves sediment) This granite formed when magma cooled slowly underground, an igneous process.

62 Slide 62 / 144 Igneous Processes Igneous processes involve the cooling and solidification of magma or lava. This can result in many mineral resources. Diamond crystals form at depths of 200 km as a result of intense pressure. Magma then carries the crystals to the surface of Earth. Source: mnh.si.edu

63 Slide 63 / 144 Hydrothermal Activity As some magma cools and crystallizes, hot water solutions rich with materials are released. These hydrothermal fluids may seep through cracks in the Earth and produce deposits of important minerals. Large deposits of gold, lead, zinc and silver in the United States are due to hydrothermal activity. Source: web-japan.org "hyrdro" = water "thermal" = heat

64 Slide 64 / 144 Hydrothermal Activity Hydrothermal fluids are found in the deep ocean as well on Earth's surface in active hot springs. These hydrothermal areas can be rich in sulfide deposits.

65 Slide 65 / Igneous processes that form natural resources may involve. (Select all that apply. ) A B C D magma ammonium hydrothermal fluids cooling and solidification of lava

66 Slide 66 / Hydrothermal activity in the deep ocean and in hot springs is a source of. A B C D diamonds sulfide magma crystals

67 Slide 67 / Diamonds are formed at great depths (~200km) and the crystals are carried to the surface by magma. True False

68 Slide 68 / 144 Metamorphic Processes Contact metamorphism occurs when hot magma seeps into surrounding cooler rock. This causes the surrounding rock to change its form and composition. Some metallic minerals associated with contact metamorphism are zinc, lead, copper and iron.

69 Slide 69 / 144 Surface Processes Weathering is a surface process that is eventually responsible for the creation of soil. The materials left over after the rock breaks down are eventually combined with organic material creating soil. Weathering occurs without the rocks moving, so it should not be confused with erosion.

70 Slide 70 / 144 Surface Processes Physical weathering breaks rocks into smaller fragments with the same chemical makeup as the parent rock. Example: When water freezes in rock cracks, it expands and breaks the rock into pieces.

71 Slide 71 / 144 Surface Processes Chemical weathering results in the production of new minerals with a different chemical composition. Example: Acid rain reacts with rock, causing a chemical change to occur.

72 Slide 72 / 144 Surface Processes Freshwater used for human and animal consumption is also affected by surface processes. This water can be found in lakes, rivers, streams and wetlands. Can you think of a process that would change the quality of freshwater available for human consumption?

73 Slide 73 / 144 Surface Processes When it rains, water also seeps into the soil and down into the rocks beneath. This water becomes stored beneath Earth's surface.

74 Slide 74 / 144 Surface Processes Rocks that are more porous (like a sponge) hold more water.this underground layer of water-bearing rock is called an aquifer.

75 Slide 75 / 144 Sedimentary Processes Fossil fuels (coal, oil and natural gas) are a natural energy resource that contain solar energy preserved from millions of years ago! When prehistoric animals and plants died, their remains were trapped in sedimentary layers of rock that accumulated with time. Source: The layers at the bottom were changed by intense heat and pressure and became fossil fuel deposits. This can be extracted today by drilling deep into the land and ocean floor.

76 Slide 76 / Contact metamorphism occurs when cool rock surrounds hot. A B C D rock air magma water

77 Slide 77 / Physical and chemical weathering produces soil. True False

78 Slide 78 / A mineral that undergoes chemical weathering will produce smaller identical minerals. True False

79 Slide 79 / To extract oil, one would only need to drill into Earth's surface until a sedimentary layer that is about 20 years old is reached. True False

80 Slide 80 / The amount of water stored underground depends on which of the following? (Select all that apply. ) A B C D How porous the rock is Surface processes Rainwater The water cycle

81 Slide 81 / 144 Human Impacts Return to Table of Contents

82 Slide 82 / 144 Natural Resources and Population As the human population grows, does the demand for natural resources increase or decrease? The demand for natural resources increases.

83 Slide 83 / 144 Natural Resources and Population The increased demand on natural resources results in a significantly altered biosphere. This impacts natural habitats and species survival.

84 Slide 84 / 144 Natural Resource Categories Recall the 5 categories of resources and list them in the circles below. Refer to slide #38 if you get stuck. Humans impact each of these categories.

85 Slide 85 / 144 Natural Resource Categories Can you think of examples of how humans impact each of the categories? Write your ideas in the boxes. Forest Resources Water Resources Energy Resources Food Resources Mineral Resources

86 Slide 86 / 144 Forest Resources When large expanses of forests are cut down it is called deforestation. Deforestation occurs for a variety of reasons. How many can you think of? Source: worldwildlife.org

87 Slide 87 / 144 Deforestation Large expanses of forests are cut down to provide lumber for fuel, wood and paper products. Forests are also cut down in order to extract minerals such as copper and gold from the Earth.

88 Slide 88 / 144 Deforestation As the world population continues to increase, there is a demand for more food. As a result, deforestation occurs in order to use the land for agriculture or cattle grazing.

89 Slide 89 / 144 Impacts of Deforestation Much of the deforestation occurs in rainforests and in underdeveloped, poorer countries. There are many consequences to deforestation. Brainstorm some positive and negative results below. Good Bad

90 Slide 90 / 144 Deforestation & Global Warming All plants conduct photosynthesis. As part of this process, plants take in carbon dioxide from the air and release oxygen. Additionally, clearing forests by burning adds a lot of extra carbon dioxide into the atmosphere. Think about what you know about global warming. Does deforestation make global warming more or less intense? Click below to check your answer. Removing entire forests increases CO 2 in the atmosphere. This holds in more of the sun's energy, making the global temperature increase.

91 Slide 91 / 144 Deforestation & Biodiversity Rainforests are home to some of the most diverse ecosystems on Earth. Healthy biodiversity plays an important role in: medical discoveries protection of water resources recovery from disasters climate stability crop development

92 Slide 92 / 144 Deforestation & Biodiversity We lose about 50,000 species a year due to the destruction of the rainforest habitat.

93 Slide 93 / 144 Deforestation & The Water Cycle Trees are a part of the water cycle. Water is absorbed by the roots and evaporated from the leaves into the atmosphere. How will removing trees affect the water cycle? Click below to check your answer. When trees are cut down, not as much water is added to the atmosphere. This can lead to dryer climate and even drought conditions.

94 Slide 94 / 144 Deforestation & Soil Erosion The roots of trees help to stabilize the soil. Also, forests are filled with a layer of leaf litter that protects the soil underneath. When deforestation occurs, the soil is unprotected and easily washes away with wind or water. This area has been cleared of trees and most ground cover. Soil erosion will happen easily and can even lead to a landslide.

95 Slide 95 / Deforestation may result in which of the following? (Select all that apply. ) A B C D more medical discoveries endangered species increased standard of living for some people changes in climate

96 Slide 96 / The use of natural resources has with time due to the growth of the human population on Earth. A B C increased decreased not changed

97 Slide 97 / The amount of both carbon dioxide and moisture in the atmosphere increases as deforestation increases. True False

98 Slide 98 / The of trees holds soil together helping to prevent. A B C D leaves, floods roots, landslides leaves, soil loss roots, biodiversity

99 Slide 99 / Deforestation only has negative impacts for humans and animals on Earth. True False

100 Slide 100 / 144 Water Overuse As a result of water overuse, stores of water (aquifers) are being depleted faster than they can be refilled. The map below shows areas of the country that have seen a drop in the amount of groundwater that is available. image from ga.water.usgs.gov

101 Slide 101 / 144 Water Resources Although water is considered a renewable resource, areas of the world often experience water shortages. What activities can you think of that would lead to a shortage?

102 Slide 102 / 144 Water Overuse Humans in many developed countries like the United States often overuse water. This can happen in every day activities like showers and brushing your teeth. It can also happen in agriculture and in the production of goods in factories and power plants. How much water do you use every day? Click here to calculate your water usage.

103 Slide 103 / 144 Water Pollution Without water, humans and all other animals would cease to exist. Despite this, a large amount of our water here on Earth gets polluted! This water is often polluted by pesticides being sprayed on crops, sewage, or chemical waste from industries.

104 Slide 104 / Humans will always have enough water because it is a renewable resource. True False

105 Slide 105 / Which of the following activities may lead to water pollution and overuse? (Select all that apply. ) A B C agriculture mining manufacturing

106 Slide 106 / Groundwater has depleted in the last several decades as indicated by decreased water levels in. A B C D lakes aquifers oceans rivers

107 Slide 107 / 144 Mineral Resources Minerals are extracted from the lithosphere through mining activities. Mining operations deplete the available land that could be used for agriculture or habitats.

108 Slide 108 / 144 Impacts of Mining Mining operations also lead to the pollution of soil and surface water due to chemicals used in the mining process. Taking metals out of rock (a process known as smelting) also leads to atmospheric pollution.

109 Slide 109 / 144 Food Resources Today's food resources come from three main sources: agriculture, animals and fishing. The production of food is often unable to keep up with the expanding population. To keep up with the increasing need for food, forests, grasslands and wetlands are cleared for farmland. This has the same effects as deforestation.

110 Slide 110 / 144 The Loss of Fertile Soil Each time a farmer plants and harvests a crop, the soil that is left behind has less nutrients than it did at the start. Over time, these nutrients will be replenished naturally. Because of the increased demand for food, however, these fertile soils are being depleted faster than they can recover.

111 Slide 111 / 144 Impacts of Livestock An increase in the demand for food for livestock requires more land and water. Eating livestock (meat) requires more land per unit of food than eating grains. As a result, many people in poor, underdeveloped countries do not get enough to eat.

112 Slide 112 / 144 Impacts of Overfishing Overfishing occurs when more so many fish are taken that the fish population does not recover. If a certain species of marine life collapses, it can affect other marine organisms. This impacts the health of our oceans and marine ecosystems.

113 Slide 113 / Biodiversity and available land for habitats are at risk due to. (Select all that apply. ) A B deforestation mining C D agriculture water use

114 Slide 114 / Agricultural practices ensure that there is plenty of food for everybody on the planet. True False

115 Slide 115 / 144 Energy Resources Make a list of the things in your life that rely on fossil fuels, such as coal, oil and natural gas.

116 Slide 116 / 144 Fossil Fuels Many things that we use on a daily basis rely on the burning of fossil fuels such as coal, oil and natural gas. This provides us with energy for transportation, electricity, and industry. As population increases, the demand for these fossil fuels increases as well. Are these resources renewable or nonrenewable?

117 Slide 117 / 144 Effects of Fossil Fuels Burning fossil fuels results in poor air quality due to the release of pollutants like carbon monoxide and sulfur. This can lead to smog and acid rain. What effect can this have on an ecosystem? Effects of acid rain, woods, Jizera Mountains, Czech Republic

118 Slide 118 / 144 Impact of Drilling Drilling for oil can potentially lead to oil spills that pollute the land and water. This has dire consequences for species that live near oil rigs, including humans. Not all oil rigs are on land. Click here to see how humans drill for oil underwater. In 2010, a large oil spill occurred in the Gulf of Mexico. Click here to see some of the effects of this disastser.

119 Slide 119 / 144 Fossil Fuels and Global Warming Burning fossil fuels also releases large amounts of carbon dioxide (a greenhouse gas) into the atmosphere. This contributes to global warming. We will be spending much more time discussing global warming and global climate change in the next unit!

120 Slide 120 / The quality and amount of soil can be affected by which of the following human activities? (Select all that apply. ) A B C D mining deforestation agriculture burning fossil fuels

121 Slide 121 / Overfishing only affects the specific fish that is caught. True False

122 Slide 122 / When humans burn fossil fuels such as coal and natural gas, pollutants like and sulfur enter the atmosphere and may lead to and acid rain. A B C D oil, smog carbon dioxide, smelting carbon monoxide, smog pesticides, oil spills

123 Slide 123 / Burning fossil fuels and deforestation are both human activities that contribute to rising global temperatures. True False

124 Slide 124 / 144 Reducing our Ecological Footprint Return to Table of Contents

125 Slide 125 / 144 Ecological Footprint This photo was taken at a Florida state park. Can you describe the meaning of the quotation? Source:

126 Slide 126 / 144 Ecological Footprint The amount of Earth's resources that we use leaves a "footprint" on Earth. What does this mean? What is an ecological footprint? Just like a footprint in the sand, this mark that we leave on the Earth will remain for a long time.

127 Slide 127 / 144 Ecological Footprint The ecological footprint of humans is how much land and water a population requires to produce all the resources it consumes and to absorb the waste it generates. The larger our footprint, the larger the demand for Earth's resources and the larger the damage on the environment. Click on the Earth to calculate your ecological footprint!

128 Slide 128 / 144 Ecological Footprint Per Capita Different countries have different populations. For example, there are many more people living in the United States than Canada, Bolivia, and most other countries in the world. Because of this, a country's ecological footprint is determined per capita. Per capita means the ecological footprint is divided by the population of a country to determine the average per person. A larger footprint per capita means that a larger demand is being placed on Earth's resources.

129 Slide 129 / Our ecological footprint has been increasing with time as we require less natural resources due to advancements in technology. True False

130 Slide 130 / Ecological footprint per capita refers to the footprint of a nation divided by its. A B C D biodiversity land area population national debt

131 Slide 131 / Having a large ecological footprint per capita always means that the country has a large population. True False

132 Slide 132 / 144 Ecological Footprint per Capita Map The ecological footprint per capita map on the next slide is based on five demands we place on Earth: Agriculture (crops and grazing) Forestry products Carbon use (from burning fossil fuels) Fishing Land use (for urban development, mining, industrial land use, and residential)

133 Slide 133 / 144 Ecological Footprint per Capita Map The darker a country is shaded, the larger ecological footprint per capita. How does the USA compare to the rest of the world?

134 Slide 134 / 144 Ecological Overshoot We are currently in a state of ecological overshoot. This means that we are using more natural resources than can be replenished. Source: Look at the biocapacity line. Describe what is happening. Look at the ecological footprint line. Describe what is happening. Click here to watch a video about ecological overshoot.

135 Slide 135 / 144 Looking Forward If we continue our current behaviors, what are some possible outcomes for the planet? Let's brainstorm some ideas and list them here...

136 Slide 136 / 144 Looking Forward If we continue activities that place us in a state of ecological overshoot, we might run out of precious resources. There is no guarantee that there will be enough natural resources to sustain life on Earth in the future! We need to make a shift from non-sustainable activities and technologies to those that will do less harm to our Earth.

137 Slide 137 / 144 What Changes Should We Make? So are we just supposed to stop living the way we do? Is the solution to get rid of all of our cars? Should we stop growing food and using water? Should we throw out our phones, computers, lights and TVs and simply not use any more electricity?

138 Slide 138 / 144 Sustainability While we might be able to reduce our use of some resources, others (such as food and water) are essential for life. This is where sustainability comes in. To be sustainable we must be able to meet our current resource demands while at the same time ensuring two things: 1) Resources are protected from being completely used up. 2) Ecosystems and environments remain healthy and negative impacts from humans are reduced.

139 Slide 139 / Sustainability means that we are meeting our demands while protecting our resources. True False

140 Slide 140 / Sustainability solutions require both individual effort and city, state, nation and world effort. True False

141 Slide 141 / 144 Sustainable Solutions Project To protect our environment, many cities have started sustainability efforts. In your group, research sustainable efforts and report your findings in a poster. Sustainability

142 Slide 142 / 144 Sustainable Solutions Venn Diagram Based on your research, the list that follows on the next page are just a few examples of working sustainable solutions. For each, identify what aspect of the environment it helps to reduce human impact (air quality, food, etc) and place it in the Venn diagram appropriately.

143 Slide 143 / 144 Sustainable Solutions for Venn Diagram use cleaner energy sources (biofuels) use renewable energy sources (wind, solar) install catalytic converters in vehicles use energy efficient bulbs and appliances build rain water collection systems reduce the use of fossil fuels protect and build greenspaces and parks improve water treatment plants reduce meat consumption recycle materials recycle water use indigenous plants update water pipes rotate crops use solar panels (for hot water and lighting) improve non-vehicle transportation options (for bikers and pedestrians)

144 Slide 144 / 144 AIR WATER FOOD BIODIVERSITY