79-85 Sustainability

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Sustainability

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15 Terms

1

Sustainability

consuming a resource or using a space in a way
that does not deplete or degrade it for future use

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2

Maximum sustainable yield

maximum amount of a renewable resource that can be harvested without reducing or depleting that resource

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3

Maximum sustainable yield is about

½ the carrying capacity will maximize yield

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4

Feeding the world’s rising human population requires

changing our diet or increasing agricultural production

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5

We must do these things to help maintain and feed the world’s rising human population

  • must improve the efficiency of food production

  • must decrease our impact on natural systems

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6

Land suitable for farming is

running out

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7

Mismanaged agriculture causes

  • turns grasslands into deserts

  • removes forests

  • diminishes biodiversity

  • pollutes soil, air, and water with chemicals

  • fertile soil is blown and washed away

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8

Undernutrition

people receive fewer calories than their minimum requirements

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9

Economics, politics, conflict, and inefficiencies in distribution cause

undernutrition

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10

Most undernourished live in

developing nations (but 36 million Americans are “food insecure”)

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11

Food security

guarantee of an adequate, safe, nutritious, and reliable food supply

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12

Food desert

geographic areas where residents have few to no
convenient options for securing affordable and healthy foods - especially fresh fruits and vegetables

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13

Overnutrition

receiving too many calories each day
(Developed countries have abundant, cheap junk food, and people lead sedentary lives)
(In the U.S., 25% of adults are obese)

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14

Malnutrition

a shortage of nutrients the body needs (The diet lacks adequate vitamins and minerals and can lead to diseases)

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15

CSA - Community Supported Agriculture pros

  • Buy local, seasonal produce from local farmers

  • Can also purchase beef, pork, chicken and eggs

  • Support local economy

  • Less fossil fuel use

  • Know where your food is grown

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