Exam code:8291
Managing Climate Change
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Climate change poses significant challenges globally due to its impact on ecosystems, economies and human well-being:
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Effective management strategies are essential to mitigate the adverse effects of climate change and reduce greenhouse gas emissions
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Strategies for Reducing Greenhouse Gas Emissions
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Reduction of global and individual carbon footprint:
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Encouraging smaller family sizes to reduce population growth rates, lowering overall carbon emissions
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Promoting a plant-based diet that requires fewer resources and emits fewer greenhouse gases compared to meat-based diets
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Adoption of energy-efficient lifestyles including minimising energy consumption, reducing waste and using renewable energy sources:
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E.g. encouraging the use of energy-efficient practices in homes and businesses, such as using LED lighting and energy-efficient appliances
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Switching to low-carbon fuels:
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Transitioning from high-carbon fossil fuels such as coal and oil to low-carbon alternatives like natural gas (which produces fewer greenhouse gas emissions than coal or oil) or renewable energy sources such as solar and wind power:
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E.g. investing in biofuels derived from renewable sources like plant matter or algae
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Reducing the use of fossil fuels:
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Implementing policies to decrease reliance on fossil fuels in industries, transportation and energy production:
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E.g. encouraging the use of public transportation, walking, or cycling instead of private vehicles powered by fossil fuels
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Utilising alternative forms of energy:
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Investing in and promoting the use of alternative energy sources such as solar, wind, hydroelectric and geothermal power
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Research and development of innovative technologies for harnessing renewable energy efficiently
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Transport policies:
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Implementing fuel efficiency standards for vehicles
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Implementing policies to promote electric vehicles, hybrid cars and fuel-efficient transportation systems.
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Investing in public transportation infrastructure to reduce reliance on individual car usage.
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Carbon capture and storage (CCS):
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Developing and deploying CCS technologies to capture carbon dioxide emissions from industrial processes and power plants, preventing them from entering the atmosphere
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Reducing deforestation, increasing reforestation and afforestation:
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Implementing measures to protect existing forests, halt deforestation, and restore degraded ecosystems through reforestation and afforestation projects to absorb and store carbon dioxide from the atmosphere
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Energy-efficient buildings and infrastructure:
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Encouraging the construction of energy-efficient buildings and infrastructure using sustainable materials and incorporating renewable energy technologies:
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E.g. enforcing building codes and standards that prioritise energy efficiency in construction and renovation projects, or retrofitting existing buildings with insulation, energy-efficient windows and efficient heating and cooling systems
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National and international agreements:
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Participating in international agreements such as the Kyoto Protocol (1992) and the Paris Agreement (2016) to set targets for reducing greenhouse gas emissions and promoting global cooperation on climate action
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Adapting to Climate Change
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As the impacts of climate change become increasingly evident, it is essential to implement adaptation strategies to reduce adverse effects and maximise any potential positive outcomes:
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Climate change adaptation strategies focus on building resilience and adapting to changing climate conditions
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Climate Change Adaptation Strategies
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Adaptation strategy |
How to implement strategy |
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Flood defences |
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Vaccination programmes |
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Desalination plants |
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Planting of crops in previously unsuitable areas |
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These adaptation strategies aim to reduce vulnerability and enhance the capacity of communities, ecosystems and sectors to cope with the impacts of climate change
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By implementing these measures, societies may be able to minimise potential harm, seize opportunities and increase resilience in the face of a changing climate
Geo-engineering Strategies to Counteract Climate Change
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Geo-engineering refers to deliberate interventions in the Earth’s climate system to counteract the effects of climate change:
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These strategies are controversial and carry potential risks and uncertainties, but they are considered as potential last-resort options to mitigate the impacts of global warming
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What Are Some Examples of Geo-engineering Strategies?
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Solar Radiation Management (SRM):
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Albedo enhancement:
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This involves increasing the reflectivity of Earth’s surface to reduce the amount of solar radiation absorbed
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Methods include painting roofs and surfaces with reflective materials or altering land use to favour lighter-coloured surfaces (as light colours absorb less thermal energy)
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Space reflectors:
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Proposed space-based mirrors or reflective surfaces could be deployed to redirect incoming solar radiation away from Earth, reducing warming of the Earth’s surface
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Stratospheric aerosols:
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Injecting sulfate aerosols or other reflective particles into the stratosphere to scatter sunlight and create a cooling effect
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This approach mimics the natural cooling effect of volcanic eruptions
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These geo-engineering strategies aim to mitigate global warming by reducing the amount of solar radiation absorbed by the Earth’s atmosphere and surface:
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However, these strategies could have unpredictable consequences for regional climate patterns, the ozone layer and precipitation, as well as ethical and governance concerns
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It is important to note that while geo-engineering may offer potential solutions to climate change, it is not a substitute for efforts to reduce greenhouse gas emissions and adapt to the changing climate:
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Sustainable solutions must prioritise emission reductions, renewable energy transitions and conservation efforts alongside any consideration of geo-engineering interventions
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Responses