Presentation on theme: "An Introduction to Environmental Science Environmental Science aka (The study of the impact of humans on the environment.) How We Use Natural Resources."— Presentation transcript:
An Introduction to Environmental Science
Environmental Science aka (The study of the impact of humans on the environment.) How We Use Natural Resources -Water -Plants -Food/Animals -Energy How We Change Our Environment -Pollution -Climate Change -Loss of Biodiversity -Habitat Destruction Are there any more examples?
Pure 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.
Applied Science (A) or Pure Science (B) Chemistry Chemical Engineering Mathematics Applied Mathematics Environmental Science
Major Fields that Contribute to Environmental Science 1. Biology 2. Earth Science 3. Physics 4. Chemistry 5. Social Sciences The study of living organisms. The study of the Earth’s nonliving systems and the planet as a whole. The study of matter and energy. The study of Chemicals and their interactions The study of human populations Ex. Zoology, Botany, Microbiology, and Ecology Ex. Geology, Paleontology, Climatology, and Hydrology Ex. Engineering Ex. Biochemistry and Geochemistry Ex. Geography, Anthropology, and Sociology
The 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.
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 Agricultural Revolution (1,000 B.C-1700 A.D.) The Industrial Revolution ( A.D.) Technology Revolution (1900s -?)
Tragedy of the Commons
Supply and Demand The greater the demand for a limited supply of something, the more that thing is worth.
Does 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 Japan Developing Countries have lower average incomes, simple and agriculture-based economies, and rapid population growth. Ex. Many Countries in Africa and South America
Developed Countries Developing Countries Developed Nations Higher Incomes Slower Population Growth Diverse Industrial Economies Stronger Social Support Lower Average Incomes Simple Agriculture- based Communities Rapid Population Growth Use about 75% of world’s resources, although they make up only 20% of the world’s population
Developed Nations make up only ~20% of the world’s population Blue: Advanced Economies Orange: Emerging and Developing Economies Red: Emerging and Developing Economies that are the least developed
Developed Nations uses ~75% of the world’s resources.
It’s a way to express the differences in consumption between nations.
Ecological Footprint: the productive area of Earth needed to support one person in a particular country
What is the limiting factor for human sustainability? The availability of natural resources What pressures/challenges to sustainability are we facing? Increasing Population & Decreasing Natural Resources What is the ultimate goal of environmental science? To create a sustainable world
Remember a few things as you explore environmental science further: