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CHAPTER 1: AN INTRODUCTION TO ENVIRONMENTAL SCIENCE I. OUR ISLAND, EARTH a. Environment: includes all living and nonliving things around us with which we interact i. Includes social relationships/institutions ii. Physical factors: heat, light, gravity iii. Chemical factors: oxygen, water, nutrients iv. Biological factors: plants, animals, bacteria, fungi, humans b. Environmental science: study of how the natural world works, how environment affects us, and how we affect environment i. Interdisciplinary field: borrows techniques/research from other disciplines c. Environmentalism: social movement to protect natural world d. Natural resources: substances/energy sources needed to survive i. Renewable, nonrenewable, sustainable e. Population ↑ i. Agricultural revolution: (10,000 yrs ago) hunter-gatherer lifestyle agricultural way of life ii. Industrial revolution: (1700’s) urban society w/fossil fuels iii. Thomas Malthus (1766-1834): An Essay on the Principle of Population 1. pop ↑ famine, plague, war iv. The Population Bomb,
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