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ENVS 1100 (1)
Chapter 1

Chapter 1 Notes

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Environmental Science
ENVS 1100
Susan Gass

Chapter 1: Environmental ProblemsAn Intro and Overview Living in an ExponentialAge: • Human ecological footprint continues to spread exponentially o Fossil fuels o Clearing forests • Lead to climate change Key Roles: an environmental issue • Population growth • Resource use and waste • Poverty • Loss of biological diversity • Global climate change Environmental Science: • Study on how the Earth works, how we interact with the Earth and how to deal with environmental problems Environment • Everything that affects a living organism Ecology • Relationship between living organisms and their environment Environmental Science • Uses info from physical and social sciences to learn how the Earth works, how we interact with the earth and how to deal with environmental problems • Combining ideas from the natural and cultural world What Keeps Us Alive Life depends on • Energy from the sun (solar capital) • Earth’s resources and ecological services (natural capital) Solar Energy= Solar Capital Natural Resources= Natural Capital Biological Income= Renewable Supplies Carrying Capacity • Maximum number of organisms that can sustain in a given environment Sustainability • The ability of a system to survive for an extended period of time David Suzuki: pg3, Environmentalist Economic Growth • The increase in the capacity of a country to provide people with goods and services o More produces/ consumers o Usually measured through GDP Economic Development • Improvement of living standards by economic growth Percent of World’s: Developed vs. Developing Population 14% 81% Population Growth 0.1 1.0 Wealth & Income 85% 15% Resource Use 88% 12% Pollution and Waste 75% 25% Globalization • Process of social, economic and environmental global changes that leads to an increasing interconnected world Resource • Directly available • Not directly available (mining) Perpetual resource/ Renewable Resources: renewed by natural processes Sustainable Yield • Highest rate at which a renewable resource can be used indefinitely Free renewable Resource • Over use due to the idea that if I don’t use it someone else will and that my pollution is not enough to matter Pollution: Point Source- single identifiable source Non Point Source- dispersed pollutants Pollutants: • Disrupt or degrade life • Support systems for humans or animals • They can damage wildlife, health and property • Can cause noise, smells, tastes and sights Pollution Prevention (Input Pollution Control) vs. Pollution Cleanup (output PC) Environmental Problems and Causes Big Five: • Population growth • Poverty • Wasteful resource use • Poor EnvironmentalAccounting • Ecological Ignorance Major Environmental Problems 1. Air Pollution 2. Biodiversity Depletion 3.
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