Mitigation and Adaptation Strategies Flashcards

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1
Q

Two main causes of anthropogenic greenhouse gases are…

A
  • burning fossil fuels for energy and
  • changes society has made to land use
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2
Q

Agriculture produces greenhouse gases in a variety of ways…

A

→ use of fertilisers
→ ruminant animals
→ land clearing
→ Tilling/ ploughing

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3
Q

The following reduces the amount of fossil fuels burnt…

A
  • reducing use of electrical appliances
  • public transport instead of cars (less petrol usage) 🚌
  • use energy efficient appliances
  • heat/ cool less
  • buy local product (fruit and veg grown in AUS) 🥕 🥝
  • eat less meat → meat industry produces methane �
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4
Q

What are Mitigation strategies?

A

strategies intended to prevent or reduce greenhouse gas emissions
(proactive)

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5
Q

What are Adaption strategies?

A

strategies intended to reduce the impact of climate change due to
greenhouse gas emissions (reactive)

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6
Q

What are some Urban design mitigation strategies:

A

Use of high efficiency LED lights for street lighting 💡
- Convenient and effective public transport to encourage its
usage over cars 🚏🚌
- Green buildings with plants that insulate… reduce energy
usage (eg, One Central Park) 🪴
- Double glazing (insulates) → effective as it reduces heat loss
by 30% when compared to single glaze
- Use of renewable energy (eg, solar)
- Buildings that face north (maximum exposure to sun during
winter, shading during summer)

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7
Q

What are some Urban design adaptation strategies

A
  • Planning so that emergency services can access areas and residents can leave
    efficiently 🚒 󰳚
  • Planting trees to provide moisture and shade during heat waves
  • Attention to drainage (reduce impact of increasing flash floods, etc)
  • Appropriate use of thermal mass (ability of a material to absorb and store heat) = energy
    savings (eg, concrete and bricks absorb heat during day and release at night)
  • Light surfaces, eg, roofs and roads (reflect sun’s energy) 🛣 → effective as it reduces
    albedo effect by 0.8%, noticeable by residents, reduced LA’s energy bills by $100 million
    per year
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8
Q

What does Geo-engineering mean?

A

Geo engineering describes large-scale projects that seek to modify Earth’s natural systems.

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9
Q

What is Geosequestration?

A

The process of capturing carbon dioxide (CO2)
from major stationary sources (such as power
stations), transporting that CO2
(usually by a pipeline) and then injecting it into a suitable geological formation.

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10
Q

How is Geo-Engineering effective?

A
  • Reduce carbon emissions in
    atmosphere
  • However, it is very expensive to implement and difficult to make a profit from
    Solar radiation management (SRM) aims to reduce the amount of light entering Earth’s atmosphere by injecting
    large numbers of reflective particles into the upper
    atmosphere/ stratosphere.
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11
Q

How is Geo-Engineering NOT effective?

A
  • Benefits are outweighed by negatives
  • Would produce substantial ozone depletion
    → flow
    on effect on ecosystems
  • May cause droughts in Africa and Asia
  • Widespread droughts or floods
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12
Q

What is Ocean Iron Fertilisation?

A

Is the intentional introduction of
iron to iron-poor areas of the ocean surface to stimulate phytoplankton production → enhance
biological productivity and/or accelerate carbon dioxide sequestration from the atmosphere

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13
Q

The most popular renewable energy sources currently include:

A
  1. Solar energy
  2. Wind energy
  3. Hydro energy
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14
Q

What is Solar energy?

A

Is radiant light and heat from the Sun that is harnessed using a range of
ever-evolving technologies.

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15
Q

Pros of SOLAR ENERGY?

A
  • Reduces carbon footprint as they use
    sustainable energy rather than burning
    fossil fuels
  • Lower electricity bills
  • Requires very little maintenance
  • Excess power can be sold back into the
    grid (investment)
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16
Q

Cons of SOLAR ENERGY?

A
  • Expensive to install 💵
  • Susceptible to weather / climate
  • Less production on overcast or
    short days
  • Lower efficiency than fossil fuel energy
  • Solar panels typically have an
    efficiency rate between 15-20%,
    whereas coal has efficiency of up to
    40%
  • Become less efficient with time
  • solar panels and batteries will
    deteriorate over time
  • requires rare earth minerals which are
    non-renewable
  • Does not work for every roof type
17
Q

What is Wind energy?

A

is a process by which wind is used to generate electricity.

  • It is a form of solar energy as wind is caused by the uneven heating of the atmosphere
    by the sun, variations in the earth’s surface, and rotation of the earth
18
Q

PROS of WIND ENERGY (wind turbines)

A
  • Renewable & clean source of energy:
  • Doesn’t require burning fossil fuels to
    operate.
  • Completely renewable & will never
    run out.
  • More energy efficient than most power
    stations that burn fossil fuels.
  • Low operating costs (turbines don’t require
    much maintenance)
  • Efficient use of land space
19
Q

CONS of WIND ENERGY (wind turbines)

A
  • Intermittent (not consistently available):
  • reliant on weather and isn’t capable
    of generating electricity 24/7.
  • Wind energy isn’t always available in
    times of peak electricity demand.
  • In order to use wind energy
    exclusively, wind turbines need to be
    paired with some sort of energy
    storage technology (requires mining of unsustainable minerals).
  • Expensive to install 💵
  • Negative environmental impacts:
  • Wind turbine blades can harm and
    kill species, such as birds and bats,
    that fly into them.
  • Construction of wind farms can
    disrupt natural habitats of local
    species if not conducted correctly.
  • Noise and visual pollution
20
Q

What is Hydro energy?

A

Uses the force of moving water to create electricity.

21
Q

PROS of HYDROENERGY?

A
  • Renewable + sustainable energy source
  • High efficiency
  • Very reliable → can meet peak electricity
    demand
  • Safe
  • Low maintenance cost
22
Q

CONS of HYDRO ENERGY?

A

-Some adverse environmental impact.
- Lack of available reservoirs
- Expensive upfront �

23
Q

What is Agriculture?

A

Practice of cultivating plants and livestock

24
Q

What is Mosaic burning ?

A

Involves lighting low fires in small areas on foot to maintain and protect the health of the surrounding country.

  • Fires are closely monitored, ensuring that only the underbrush is burnt.
  • Provides right temperature for native seeds to
    open (conventional hazard reduction burning is too hot → destroys seeds and nutrients in the soil)
  • Burning small areas allows animals to move to different sections and come back to new
    growth
25
Q

What is Insect Diet?

A

Eating insects over other sources of meat → sustainable dietary practice as it reduces carbon
footprint
- Higher in protein: larvae (54% protein) VS beef (27% protein)
- Bogong moth = pest of crops in Australia + highly nutritious food source eaten by
Aboriginal people