Shared Flashcard Set

Details

CRP 3000
Midterm 1 Review
29
Other
Undergraduate 3
03/05/2013

Additional Other Flashcards

 


 

Cards

Term
Efficiency Paradox
Definition
We can become too efficient. A disturbance can disrupt the system due to lack of backups.
Term
3 E's of Sustainability
Definition
Balancing economy, environment and social equity to yield sustsainability.
Term

Phase Matrix

 

Definition
[image]
Term
Resiliency
Definition
the capacity of a system to absorb disturbance and still retain its basic function and structure.
Term
Sustainability
Definition
balancing economic, environmental, and social progress that meets the needs of the present day without reducing the capacity to meet future needs.
Term
Challenges of Resiliency
Definition

Resilience comes at a cost. 

 

Strategies to increase redundancies reduce
efficiencies, so you can’t get to your maximum
yield in the form of short‐term gains.

 

As long as things don’t go wrong, it’s more
profitable to run down your resilience.

 

Term
Trends in developmental patterns
Definition
Density of development & poor stewardship of the
supporting land eventually leads to degradation of the land and the failure of the community.
Term
CHC RLC Matrix
Definition
[image]
Term
CHC Characteristics
Definition

1. Nonrenewable resource‐based systems that are wholly/largely dependent on use of nonrenewable resources.


2. Inflexible systems that are incapable of expansion, contraction or modification over time.


3. Inefficient systems that generate waste as a by product.


4. Unsafe systems that generate harmful byproducts or have hazardous operations.


5. Temporary systems that are intentionally built for obsolescence or replacement.

Term
RLC Characteristics
Definition

1. Renewable resource‐based systems that are
capable of achieving full dependency on renewable
resources.


2. Flexible systems that are capable of expansion,
contraction or modification over time.


3. Efficient, zero‐waste systems that generate reusable
waste.
4. Safe systems that generate beneficially impacts from their operations.


5. Durable systems that are built to last.

Term

VMT

 Travelling Differently and Less

Definition

"Vehicle Miles Traveled"

 

Travel Less
• Congestion pricing
• Denser, Mixed‐Use Land Uses
• Increased parking rates
• Increased cost of gasoline
• Increased cost of vehicles & maintenance
• Telecommuting options
• Flexible work hours
• Internet shopping/delivery

 

Travel Differently
• Offer options!
• If people don’t have options, they can’t use them.
• Options needs to be comfortable, accessible, and well‐connected.

 

Term
Solar Photovoltaics
Definition

Pro’s
• Off the grid energy
• No moving parts
• Low maintenance
• Long life
• Noncorroding parts
• Easy installation
• Modular design
• Universal application
• Safe low‐voltage output
• Simple controls
• Long‐term payback

 

 Con’s
High initial cost
 Requires direct sunlight
 Sensitive to shade
 Lowest output during
shortest days
 Low‐voltage output
difficult to transmit

Term
Wind Energy
Definition

Wind Energy Positives:
o Wind power generates electricity without the
air quality impacts.
o Wind turbines don’t need water for cooling so
can be located in hot, arid climates without
using up the limited water supply.
o Renewable & Local

 

Wind Energy Negatives:
o Bird & bat collisions
o Noise
o Shadow flicker
o Blade/ice throw
o Visibility

 

Standards can be put in place to address these
issues, making wind can be a very viable option.

 

Term
Geothermal Energy
Definition

Geothermal Energy Benefits:
o Energy savings up to 70%
o Quiet operation
o Even heating – no blasts of hot air
o Low maintenance
o Long life
o No flames, fumes or combustion
o No outdoor tanks, like propane
o Environmentally friendly
o Energy Security ‐ produced in the U.S./locally

 

Negatives:
o Expensive!

Term
Hydropower
Definition

Hydropower Positives
o Clean fuel source; Doesn't pollute the air
o Domestic source of energy, produced in the U.S.
o Renewable power source
o Available as needed ‐ flow of water can be controlled to produce
electricity on demand.

 

Hydropower Negatives
o Disruptions to water temperature and composition
o Impair species migrations routes
o Changes to natural water flow and intensity (including peak flood
seasons)
o Can kill water species
o Mechanical fluids can leak out, which may be harmful to the marine
life nearby.
o Noise pollution on the marine environment
o Visible aesthetics
o Salt water causes corrosion in metal parts; difficult to maintain tidal
stream generators due to their size and depth in the water.

Term
Biomass Energy
Definition

Biomass Energy Pro’s
o Uses waste products that would otherwise go to
landfills
o “Renewable”
o Produced in the U.S.

 

Con’s
o Combustion results in air pollution.
o Using food for fuel results in supply shortages of food.

Term
Grid Resilience
Definition
• Decentralized, localized
• Backups, redundancies
• If primary power goes out, there are systems in place to still serve people in some capacity.
Term
Water Supply
Definition

Water Conservation

  • Reduces water demand
  • Focuses on increasing efficiency
  • Utilizes wastewater reclemation to meet nonportable demand
Term
Stormwater
Definition
  • Green roofs provide insulation, absorb rainwater, create habitat and lower air temps
  • Green dev. Rain gardens allow runoff to be absorbed, improves water quality and reduces pollutants
Term
Wastewater
Definition
  • Gray water can be used for agriculture, fires or put back into system
  • Decentralized systems. Natural systems or onsite treatment. instead of big treatment plants
  • Natural systems. Run water over permeable grassy slopes. Constructed wetlands - uses plants to treat all water.
Term
Land Conservation
Definition

 

Permenant protection of land areas by removing them from development.

 

  • protects ecological functions and wildlife habitat
  • Preservation of natural space and open character
Land Acquisition- performed by gov or nonprofit environmental entity. Protects land from development pressure or zoning
 
Land Trust- groups of nonprofit. use own funds or donations. usually can only protect some of the working or ecological land...not all of it.

 

Term
Green Infrastructure
Definition

Trails- links community areas without the use of cars

 

Greenways along waterways- stabalizes soil and keeps development at a safe distance.

 

Greenways along highways- absorb fumes and exhaust and absorbs some sound.

Term
Habitat Fragmentation
Definition

conversion of natural areas into developed areas leaving isolated habitats.

 

  • Hinders the ability to support healthy wildlife
  • less likely to survive disturbance- fire, flood etc

 

 

Term
Urban Forestry
Definition
  • Increased property values
  • increased air quality
  • supports wildlife
Term
Wetlands
Definition
  • Flood damage reduction - acts as sponge
  • Improves water quality - naturally treats water
Term

Green Landscaping

 

Definition
  • collect yard clippings and compost for mulching
  • harvest rainwater
  • stormwater cleansing gardens
Term
Food System Problems
Definition

Issues - food scarcity and lack of access to health foods

 

Resiliency - Feeds people without depleting resources

 

Urban Orchards - provide fresh food to residents and can be in a private setting

 

Urban Agriculture - fresh food, jobs for elderly and youth, education of food growing process

 

Farmer's Market - Better prices for residents and more profit for farmers. Less money spent on infrastructure to sell the produce.

Term
Food Desert
Definition

Area with little or no access to a large grocery store who provides fresh food.

 

Problems

  • Access to food because of trasportation or funds
  • Transporting groceries without a car for an entire week is hard to do
Term
Agriculture, Agribusiness, CAFO
Definition
  • Small-scaled, family owned
  • Large-scaled, one crop produced in mass
  • Caged animals in large quantity for slaughter
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