3Are there any more examples? Environmental Science aka (The study of the impact of humans on the environment.)How We Use Natural Resources-Water-Plants-Food/Animals-EnergyHow We Change Our Environment-Pollution-Climate Change-Loss of Biodiversity-Habitat DestructionAre there any more examples?
4What is Environmental Science? Environmental Science is the study of the impact of humans on the environment.Focuses on 3 main areas:conservation and protection of natural resourcesenvironmental education and communicationenvironmental research
5Goal of Environmental Science To understand and solve environmental problemsTo accomplish this goal scientists focus on:how we use natural resourceshow our actions alter the environmentTo study these types of interactions, scientists gather and analyze information from many different disciplines.
6Pure Science Vs. Applied Science Pure Science: Systematic observation of natural phenomena solely for the discovery of unknown laws relating to facts; the study of science alone, not including its relations to other subjects.Applied Science: The discipline dealing with the art or science of applying scientific knowledge to practical problems.
7Applied Science (A) or Pure Science (B) ChemistryChemical EngineeringMathematicsApplied MathematicsEnvironmental Science
8Major Fields that Contribute to Environmental Science 1. BiologyThe study of living organisms.Ex. Zoology, Botany, Microbiology, and Ecology2. Earth ScienceThe study of the Earth’s nonliving systems and the planet as a whole.Ex. Geology, Paleontology, Climatology, and Hydrology3. PhysicsThe study of matter and energy.Ex. Engineering4. ChemistryThe study of Chemicals and their interactionsEx. Biochemistry and Geochemistry5. Social SciencesThe study of human populationsEx. Geography, Anthropology, and Sociology
9What did South Paulding High School look like 15 years ago?
10The Three Main Environmental Problems? Resource Depletion: The exhaustion of raw materials (renewable or non-renewable) within a region.Pollution: An undesired change in air, water, or soil that adversely affects the health, survival, or activities of humans or other organisms.Loss of biodiversity: A decrease in the number and variety of species that live in an area.
11Technology Revolution An incredibly short and simple timeline of important changes in the relationship between man and the environment.Hunter-Gatherers(at least 12, B.C.)The Industrial Revolution( A.D.)The Agricultural Revolution(1,000 B.C-1700 A.D.)Technology Revolution(1900s -?)
14Garrett Hardin: “Tragedy of the Commons” The main difficulty in solving environmental problems is the conflict between the short-term interests of the individual and the long-term welfare of society.
15“The Tragedy of the Commons” It was in the best interest of the individual to put as many animals in the commons as possible.However, if too many animals grazed on the commons, they destroyed the grass.Once the grass was destroyed, everyone suffered because no one could raise animals on the commons.
16ConclusionSomeone or some group must take responsibility for maintaining a resource or it will become depleted.
18Supply and DemandThe greater the demand for a limited supply of something, the more that thing is worth.
19The Law of Supply and Demand states as the demand for a good or service increases, the value of the food or service also increases.
20Does everyone consume resources equally? Developed Countries have higher average incomes, slower population growth, diverse industrial economies, and stronger social support systems.Ex. The United States, Canada, and JapanDeveloping Countries have lower average incomes, simple and agriculture-based economies, and rapid population growth.Ex. Many Countries in Africa and South America
21Comparing Developed and Developing Developed CountriesDeveloping CountriesDeveloped NationsHigher IncomesSlower Population GrowthDiverse Industrial EconomiesStronger Social SupportLower Average IncomesSimple Agriculture-based CommunitiesRapid Population GrowthUse about 75% of world’s resources, although they make up only 20% of the world’s population
23Developed Nations make up only ~20% of the world’s population Blue: Advanced EconomiesOrange: Emerging and Developing EconomiesRed: Emerging and Developing Economies that are the least developed
24Developed Nations uses ~75% of the world’s resources.
25Ecological Footprints Ecological footprints are calculations that show the productive area of Earth needed to support one person in a particular country.
26Ecological FootprintIt’s a way to express the differences in consumption between nations.
27Ecological Footprint: the productive area of Earth needed to support one person in a particular country
28Sustainability is a key goal of environmental science. A Sustainable WorldSustainability is the condition in which human needs are met in such a way that a human population can survive indefinitely.Sustainability is a key goal of environmental science.
29What is the limiting factor for human sustainability? The availability of natural resourcesWhat pressures/challenges to sustainability are we facing?Increasing Population & Decreasing Natural ResourcesWhat is the ultimate goal of environmental science?To create a sustainable world
30Remember a few things as you explore environmental science further: First, be prepared to listen to many viewpoints over a particular issue.Second, investigate the source of the information you encounter.Third, gather all the information you can before drawing a conclusion.
31What’s the ISSUE?What are some environmental problems in the world today?What are some environmental problems in the local community?What are some ways that we can solve these local problems?