Study Table 1–1, pick one of the vital ecosystem services listed there, and investigate the reasons why it is placed where it is by the Millennium Ecosystem Assessment

What will be an ideal response?


Answers will vary by the service chosen. The overall intent of the MEA project is to build a knowledge base for sound policy decisions and management interventions; it remains for policy makers and managers to act on that knowledge. These three types of services encompass the majority of the resources.
Provisioning services are important because we are overusing and depleting our resources, both renewable and nonrenewable, and they are being replaced with "artificial resources" in agriculture and aquaculture.
Regulating services are important because without them, our environment will be even worse than it is. However, as can be seen by the long list of degraded services, we have a very long way to go.
Cultural services are important because we don't want to forget the aesthetic value of the planet. If we lose our awe of the world around us, how can we be expected to want to protect it?
Examples of why a particular service was placed in the degraded, mixed, or enhanced column:
Capture fisheries are degraded because of overharvesting, pollution, and invasive species. However, aquaculture is enhanced because of an increase in fish farms. This could likely have been spurred by the increase in price for the commodity caused by the degradation of the capture fish industry.
Wild foods are degraded by the loss of habitat, destruction of forests, and by turning some of these areas into agricultural land (thereby enhancing crop production).
Air quality regulation has degraded globally due to the rush to compete in the global economy. This is evidenced by conditions in China, Eastern Europe, and India. A desire to produce cheap goods quickly has undermined efforts to install clean smokestacks, precipitators, and the like.

Environmental & Atmospheric Sciences

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If you eat metallic sodium or inhale chlorine gas, you stand a strong chance of dying. Let these two elements react with each other, however, and you can safely sprinkle the compound on your popcorn for better taste. What is going on?

A) After these two elements react, they lose the potential energy to cause harm. B) All elements are inherently dangerous. C) Sodium and chlorine from the elemental form is more concentrated than the sodium and chlorine we get from sodium chloride. D) Sodium chloride has nothing in common with sodium and chlorine.

Environmental & Atmospheric Sciences

Which of the following is not an abiotic factor?

A) carbon and nitrogen levels B) rainfall C) bacteria D) sunlight E) temperature

Environmental & Atmospheric Sciences

Generally, global cities are divided into

A) categories, called forward leaning, stagnant and backward leaning cities. B) two levels, called primate and non-primate cities. C) three levels, called alpha, beta, and gamma. D) four levels, called alpha, beta, gamma and delta. E) None of the above

Environmental & Atmospheric Sciences

The main methodology governing geographic inquiry

A) involves spatial analysis. B) is field work. C) is behavioral analysis. D) uses chronological organization.

Environmental & Atmospheric Sciences