Environmental Understandings
Summary of concepts explored in these exercises as well as ecological topics covered. Our environmental ethic is also described.
Basic Concepts
- The basic function of any ecosystem is to capture and transfer energy.
- The Earth's main source of energy is the sun.
- Energy is initially supplied to an ecosystem by the activities of green plants.
- Diversity is a key factor in the survival of an ecosystem.
- The energy requirements of man are met primarily by "food," and men are dependent upon other organisms through food chains and food webs.
- Living things are interdependent with one another and with their environment.
- Any one of an environment's components, such as space, water, food, or energy, may become a limiting factor.
- Organisms and environments are in constant change.
- Survival of an organism depends upon its ability to adjust to its environment. Each kind of organism represents a collection of adaptations which fit it for survival under a given set of conditions.
- Man changes the natural environment to the extent that many species find it difficult to adapt to the new conditions.
- Land forms influence the type of community in which people live.
Natural Resources
- The material welfare and aspirations of a culture largely determine the use and management of natural resources.
- Natural resources are interdependent and the use or misuse of one will affect others.
- Raw materials and energy supplies are generally obtained from those resources available at least cost, with supply and demand determining their economic value.
- Social, economic, and technological changes affect the interrelationships of quality, availability, and the use of natural resources.
- As natural resources become more scarce, the inexhaustible supply of human energy, resolve, determination, and ingenuity must be fully utilized.
- Plant and animal populations are renewable resources.
- Water is a reusable and transient resource, but the usable quantity may be reduced by impaired quality.
- Soil, trees, and water are classified as renewable resources, but, because their renewal or revitalization requires a major investment in time and effort, they may be more realistically considered depletable resources.
- In nature, there is a continuous recycling of many elements.
- Man would do well to observe nature's example and recycle the results of his technology.
- Most resources are vulnerable to depletion in quantity and quality.
- The nonrenewable resource base of mineral elements is considered finite, and depletion can only be slowed by altered priorities, new demographic considerations, improved conservation practices, and vigorous recycling procedures.
- The rate of resource consumption increases in direct proportion to the expansion of our wants, needs, and markets.
- Historically, cultures with high technological development have used disproportionately more natural resources than those with lower levels of technological development
Environmental Ethic
- Physical well being is a fundamental necessity for survival even though man often places a higher value on other things.
- Social values and morals influence environmental attitudes. Mankind is continually developing an ethical base for making value judgments.
- Ethically, we are stewards rather than owners of the resource base.
- Man has exercised a presumed right to exploit the environment with little regard for his responsibility to preserve it.
- Man currently faces the prospect of endangering his chances of a better life through the very measures he employs to achieve it.
- The demands of population growth coupled with man's tremendous waste of energy are responsible for some of our more serious environmental problems.
- Individuals should become well informed about the best ways to manage and conserve our energy supplies.
- Choices between essential needs and nonessential desires are often in conflict.
- Individuals tend to select short-term economic gains, often at the expense of greater long-term environmental benefits.
- It is the responsibility of each individual to become aware of existing governmental regulations intended to protect the environment.
- The arts seem to aid man in feeling a oneness with nature and with fellow men.
With permission from Designing an Environmental Curriculum . . . A Process,
New York State Education Department, Albany, NY (1975).

