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sustainable development > Important Stuff > Flashcards

Important Stuff Flashcards

1
Q

What are the 9 environmental limitations of the planet?

A

Change in land use
Biodiversity Loss -exceeding earth boundaries
Atmospheric Aerosol loading - not yet quantified
Chemical Pollution - not yet quantified
Climate Change - exceeding earth sustainable
Ocean acidification- not exceeding earth limitations
Stratospheric ozone depletion - not exceeding earth limitations
Nitrogen Cycle - greatly exceeding earth limitations
Phosphorus Cycle - almost exceeding earth limitations
Global freshwater use - not exceeding expectations

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2
Q

What 5 cycles interact with the biosphere and can then directly impact the earth heating up?

A 
Carbon cycle 
Phosphorus Cycle 
Nitrogen Cycle 
Water Cycle 
Oxygen Cycle
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3
Q

Energy in –>

A

Energy Out

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4
Q

Solar Radiation is turned into ….

A 
UV radiation -->
34% reflected by atmosphere 
The rest is then
- absorbed by ozone 
or absorbed by earth
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5
Q

Heat radiation is absorbed by…

A 
Greenhouse gasses (water vapour, C02, Methane) 
Without these gasses we would be fuckkkeeeddd
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6
Q

What is the greenhouse effect?

A

There is so much Greenhouse gasses that they trap heat from the sun in the atmosphere contributing to a warmer planet

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7
Q

What are the major components to ecosystems?

A 
Producers 
Photosynthasis 
Consumers 
Decomposers 
All organisms use aerobic respiration to fuel their life processes - glucose + oxygen = water + energy + carbon dioxide
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8
Q

Sum up the three P’s

A

People, Planet, Profit

There must be a balance between the 3 in space (north-south) and in time (today vs tomorrow)

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9
Q

Explain the food chain

A

Producers(intake solar energy) –> Primary Consumers who get eaten by –> secondary Consumers
Everything gets taken by decomposers

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10
Q

What are the 4 layers in the pyramid of biomass?

A

Tertiary consumers
Secondary Consumers
Primary Consumers
Producers - low in ocean due to phytoplankton eaten by zooplankton and reproduces fast

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11
Q

What is Earth Overshoot

A

Earth overshoot occurs when the earth’s capacity has been reached and the limits to growth are exceeded.

  • ecological limits can always be surpassed
  • depletion of natural resources could lead to global disaster in the long term
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12
Q

Rate the 3 main uses of water from highest to lowest usage

A

Agricultural use -67%
Industrial use-
Domestic use

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13
Q

What is virtual water?

A

Virtual water is used to produce food, raw materials and products

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14
Q

What are some major causes of fresh water storage?

A

Dry Climate
Drought
Desiccation - state of extreme dryness or the process of extreme drying
Water Stress

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15
Q

What is surface runoff?

A

Water that does not infiltrate in the ground or return to the atmosphere by evaporation

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16
Q

Reliable run off…

A

2/3 of the runoff is not available for human use

The 1/3 that is available is reliable run off

17
Q

What is Watershed or drainage basin

A

a region from which water drains into a stream, lake wetland etc

18
Q

Groundwater..

A

Moves from high to low altitude and compiles in a stream or lake

19
Q

Aquifers pour water…

A

saturated layers of sand or gravel, a confined aquifer is bounded above and below by a impenetrable bed of rocks
- a body of permeable rock which can contain or transmit groundwater.

20
Q

Everyday almost ____ many children die from hunger related causes

A

16,000

21
Q

In 2012, 907 million people are…

A

under or malnutritions

22
Q

What are the principal causes of poverty and hunger

A

harmful economic systems

23
Q

Overnutritioned people suffer from similar problems as…

A

under fed people

24
Q

What percentage of people in America are over nutrition or obese

A

34% obese

33% overweight

25
Q

Agriculture has serious impacts on our world, what do these impacts effect?

A

Soil, Air, Biodiversity and Climate Change

26
Q

What are some future limitations to agriculture?

A

Soil erosion,
desertification,
salinization and water logging of irrigated lands
Global warming effects in some areas

27
Q

What are the 4 hazards?

A

Cultural Hazards
Chemical Hazards
Physical Hazards
Biological Hazards

28
Q

What are the main chemical hazards?

A

Carcinogens - promote growth of cancer cells
Mutagens: Substances that can cause a change in DNA
- Chemicals
- Radiation
Teratogens
Effects on immune, nervous, or endocrine (hormonal system)

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