Chapter 1 - Chapter 1 Over time our population grew we expanded our range throughout the planet and increasingly impacted the environment with our

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Chapter 1 Over time our population grew; we expanded our range throughout the planet and increasingly impacted the environment with our presence and our technologies tech. have made life better. On a global level, one in four people live in extreme poverty income less than $2/day. Rich highly developed countries US, Canada, Japan. 19% of the world’s population. Poor 81% fall into 2 categories: moderately developed countries (Mexico, Turkey, S.Africa, Thailand) and less developed countries (Bangladesh, Mali, Ethiopia,Laos). Most LDC are agriculturally based, hunger disease and illiteracy are common. Types of natural resources: nonrenewable and renewable Nonrenewable resources: minerals (aluminum, tin, copper) and fossil fuels (coal, oil, and natural gas) are represent in LIMITED supplies and are depleted (wasted) by use developed nations tend to consume most of the world’s nonrenewable resources sooner or later will be exhausted. Renewable resources: trees, fish, fertile agricultural soil, fresh water, clean water. Nature replaces these resources fairly rapidly, and they can be used forever as long as they are not overexploited in the short term. In developing countries, forests, fisheries, and agricultural land are important renewable resources because they provide food. Developing countries are faced with the difficult choice of exploiting natural resources to provide for their expanding populations in the short term or conserving those resources for future generations. Consumption: the human use of materials and energy economic and a social act, provides the consumer with a sense of identity as well as status among peers. Media, including advertising industry, promote consumption as a way to achieve happiness. encouraged to spend, to
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This document was uploaded on 11/02/2011 for the course BIOLOGY Bi 105 at Montgomery.

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Chapter 1 - Chapter 1 Over time our population grew we expanded our range throughout the planet and increasingly impacted the environment with our

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