CARBON - an uncertain future
- Created by: aliceoliviaaa
- Created on: 08-05-18 15:09
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- future options
- 1. Business as usual (no change)
- ADVANTAGES
- Energy in the present - regardless of the future.
- Simple changes can reduce short toerm flood and drought risk.
- Resistant to climate change and diseases
- DISADVANTAGES
- Future enrgy at risk
- Costly technology so is unavailable to poor subsistence farmers
- Constant maintenence is needed in hard-engineering
- Resilient agricultural systems - Drought and climate tolerant systems to keep food production high to meet demands.
- Flood risk management - building defences to avoid flooding to keep businesses and houses running.
- ADVANTAGES
- 2. Some mitigation - emissions rise to 2080 then fall
- Water conservation and management - water butts, using more 'grey water'.
- Afforestation - tree planting to help carbon sequestration(National Trust). The BIG TREE PLANT campaign encourages communities to plant 1 mil new trees in urban areas.
- Land-use planning - enforcing strict runoff controls and soak ways, and building restrictions near vulnerable coasts.
- ADVANTAGES
- less resources used
- use of more recycled water (grey water)
- 1 million trees are being planted
- restrictions placed on vulnerable food
- DISADVANTAGES
- efficiency does not match increased demand
- needs strong governance to enforce
- changing cultural habits of consuming large amounts of water may be hard.
- 3. Strong mitigation - emissions stabilise at half today's levels by 2080.
- Carbon taxation - a 'carbon price floor tax' set a minimum price companies had to pay to emit CO2 - was unpopular (frozen in 2015).
- Renewable switching
- CCS - Canada's Large Boundary Dam is the only working scheme currently. (capturing released C and storing it deep underground).
- ADVANTAGES
- a minimum price for taxing carbon is set
- switching to renewables is controlled by governments
- can keep the carbon stored for a long time (CCS)
- DISADVANTAGES
- Causes debate
- renewables are intermittent and not continuous - needs to be reliable to meet demand
- only one large-scale working scheme (CCS)
- UK cancelled its investment into CCS in Scotland in 2015.
- 4. aggressive mitigation - emissions halved by 2050.
- CCS
- Kyoto Protocol - reducing GHG's in the atm to "a level that would prevent dangerous anthropogenic interference with the climate system". set in 2005.
- smart metres - show each appliance's usage of electricity.
- Solar radiation management - using satellites to reflect some of the heat back into space before reaching earth
- DISADVANTAGES
- smart metres have hidden costs and dangers
- SRM not tested
- involves playing with a very intricate system
- ADVANTAGES
- Intervening into climatic system to stop GW.
- can help people control their own energy consumption.
- 1. Business as usual (no change)
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