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Solutions To Global Warming

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Solutions To Global Warming IB SL Problems... The most difficult task when creating agreements on reducing global warming is gaining international co-operation and ... – PowerPoint PPT presentation

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Title: Solutions To Global Warming


1
Solutions To Global Warming
  • IB SL

2
Problems...
  • The most difficult task when creating agreements
    on reducing global warming is gaining
    international co-operation and agreement on the
    best measures to take.
  • LEDC's are keen to utilise their own reserves of
    fossil fuels, to gain valuable revenue, and do
    not have the finances (or desire) to put into
    place expensive measures that may reduce
    emissions of greenhouse gases.

3
Ways Of Reducing Emissions...
  • Switch from use of fossil fuels to 'greener'
    sources of energy, for example, renewable energy
    such as wind power, nuclear power, HEP.
  • Increase tariffs on industry for emitting
    greenhouses gases, or price fuels so that their
    cost reflects the impacts that they have on the
    environment.
  • Increase double-glazing and insulation in
    buildings to increase energy efficiency.
  • Limit the amount and rate of deforestation by
    provision of relevant management strategies.
  • Replant trees.
  • Make greater use of gas rather than coal and oil
    due to its greater energy efficiency.
  • Invest more money into public transport and
    increasing fuel efficiency of cars, for example.

4
Advantages Of Approaches...
  • Changing to nuclear power is one of the fastest
    ways of reducing carbon dioxide (CO2) output.
  • Difficult to enforce effectively. Fines often
    mean little to large industries.
  • In the UK government legislation already exists,
    and new buildings now have a minimum of 20
    increase in their energy efficiency.
  • Can work well if advice is given in conjunction
    with indigenous populations.
  • Would reduce soil erosion, and absorb carbon
    dioxide.
  • In the UK the aim is to keep carbon dioxide
    emissions at 1990 levels and this depends on
    substitution of gas for coal and oil.
  • Fossil fuels would be the most expensive fuel,
    therefore reducing their use. Car companies are
    already investigating more energy efficient fuels
    and energy sources.

5
Disadvantages Of Approaches...
  • Much concern exists over the safety of nuclear
    power, especially after the Chernobyl accident.
    Disposal of nuclear waste is problematic and the
    construction of new power stations is highly
    expensive.
  • Encourages a more mindful approach to the
    environment.
  • Difficult to oversee on a large scale.
  • Implementation is difficult, especially when the
    destruction is widespread as in Amazonia.
  • Tree growth is very slow and it would take many
    decades to replace the trees lost through
    deforestation.
  • There would be a need to construct many more
    power stations.
  • Encouraging people to use public transport if
    highly problematic, especially for those living
    in rural areas.

6
Conclusion...
  • In the widest sense there are a variety of
    approaches that can be taken to global warming,
    but without large scale international
    co-operation the problem is likely to worsen
    before it improves.
  • The evidence that exists for global warming is
    far from conclusive and it is important to
    examine all the evidence before reaching a
    conclusion.

7
Activity
  • Look at the Why is Global Warming a Difficult
    Problem to Tackle? W/S and using 4 colours sort
    the statements into...
  • Social.
  • Political.
  • Economic.
  • Environmental.
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