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A research programme focused on how to assess benefits and costs in the area of environmental decision-making. Aims at developing theory and methods for applying cost ... – PowerPoint PPT presentation

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Title: Bild 1


1
A research programme focused on how to assess
benefits and costs in the area of environmental
decision-making. Aims at developing theory and
methods for applying cost-benefit analysis (CBA)
to problems involving environmental policies and
management. Financed by the Swedish EPA. Thematic
areas Distributional issues Risk,
uncertainty and resource dynamics Valuation
and benefit transfer Goal conflicts
2
Goal conflicts and side gains Connections and
interactions between policy measures and
environmental objectives
  • Actions taken to achieve a specific social
    objective generally have effects on other social
    objectives positive or negative
  • How does the target level for one environmental
    goal affect the cost and possibilities to reach
    another environmental goal?

3
Damned if you do, Damned if you don't Reduced
Climate Impact vs. Sustainable Forests in Sweden
Erik Geijer, Göran Bostedt Runar
Brännlund Resource Energy Economics, Vol. 33
(2011)
Purpose
  • The purpose is to analyze the goal conflict
    between the environmental objectives Sustainable
    Forests and Reduced Climate Impact.
  • by
  • Assessing possible effects of a implementation of
    the objective sustainable Forests on the supplied
    quantity of biofuels within the forest sector,
    and thereby the effect on the goal concerning
    emissions of greenhouse gases.

4
Reduced Climate Impact
  • Average emissions of greenhouse gases for the
    period 200812 should be at least 4 lower than
    in 1990 (calculated as carbon dioxide
    equivalents)
  • No allowance is to be made for uptake by carbon
    sinks or for flexible mechanisms.
  • Implemented e.g. carbon taxes, quota systems for
    the electricity market and trough trading with
    emission credits.
  • The part of the energy sector that can substitute
    away from non-renewable fuels have, or will, do so

5
Demand wood fuel
6
Wood fuel in the heating sector TWh
7
Sustainable Forest
  • (Interim targets)
  • Long-term protection of forest land
  • A further 900,000 hectares of forest land of high
    conservation value will be excluded from forest
    production by the year 2010.
  • Enhanced biological diversity
  • Increasing the quantity of hard dead wood by at
    least 40 throughout the country and considerably
    more in areas where biological diversity is
    particularly at risk

8
Forest land area (1000 ha)
Total Forest land 22 906 (27
997) Protected forest 751
(4443) 3.3 (15.3
) Sustainable forest A further 900 000 ha or 4
of the total forest land.
, According to international definitions
FAO (Food and Agriculture Organization)
MCFFE (Ministerial Conference on the
protection of forests in Europe)
9
Two opposing forces ?
10
(No Transcript)
11
  • Forest owners are assumed to choose the
    quantities of different assortments that maximize
    profits at given prices. This is made conditional
    on the forest assets and cutting costs. The
    remaining actors in the model use raw materials
    from the forest as an input in their production
    process the pulp industry, the saw mill industry
    and the heating industry.
  • We assume that pulp mills use labor, energy and
    capital to convert pulpwood into pulp, and that
    the saw mills and heating plants use the same
    types of production factors to convert sawtimber
    into sawn goods and wood fuels into heating.
  • Finally we allow for technological development
    (by including a linear technological progress
    term (t)) and for lags in the adjustment to price
    change (by a partial adjustment term (xi(t-1))) .
    This means that if a price changes, demand does
    not necessarily adjust completely within one
    period. This also means that we can estimate both
    short run (within one year) and intermediate run
    effects.

12
Data
  • Annual time series data covering the period
    1966-2006
  • Unsurprisingly - this relatively long period of
    time contain some changes with respect to e.g.
  • which agency that produces certain statistics.
  • what they measure.
  • how they measure it.
  • there are occasions where two subseries
    have had to be fitted against each other with
    help of a scalar.
  • Estimation through 3SLS.

13
Estimation results Price sensitivity
14
Simulation results
15
Conclusions
  • Protection of forests will decrease the
    supply/demand of forest fuel.
  • The decrease in supply of wood fuel will decrease
    output from district heating plants by 2 TWh. If
    oil is used as substitute Swedish CO2 emissions
    will increase rather than decrease, as the goal
    Reduced Climate Impact prescribes.
  • A cost-benefit analysis of one environmental goal
    will be contingent on target levels for other
    environmental goals.

16
Biofuels or Biodiversity An Analysis of the Goal
Conflict between Reduced Climate Impact and
Biological Diversity
Erik Geijer, Göran Bostedt, Joakim Hjältén,
Runar Brännlund Jon Andersson Manuscript in
prep.
Purpose
  • The purpose is to analyze the goal conflict
    between the environmental objectives Reduced
    Climate Impact and A Rich Diversity of Plant and
    Animal Life.
  • by
  • Assessing possible effects of a implementation of
    the objective Reduced Climate Impact through
    increased implementation of stump harvesting in
    northern Sweden, and the consequent effects on
    biodiversity.

17
Reduced Climate Impact
  • Average emissions of greenhouse gases for the
    period 200812 should be at least 4 lower than
    in 1990 (with current policies, the expected
    outcome is about 15 below 1990)
  • By 2020 emissions of greenhouse gases in Sweden,
    from activities not included in the EU Emissions
    Trading Scheme, will be reduced by 40 compared
    with 1990. (with current policies, the expected
    outcome in 2020 is about 25 below 1990)

18
A Rich Diversity of Plant and Animal Life
  • (Interim targets)
  • The loss of biodiversity in Sweden should be
    halted by 2010
  • Enhanced biological diversity
  • Given the importance of CWD (Coarse Woody Debris)
    for forest biodiversity another sub-goal is to
    increase dead wood volume.

19
Stump harvesting as a way of increasing the
supply of wood fuel.
  • The main inspiration for stump harvesting in
    Sweden comes from Finland.
  • Deemed as very interesting by Swedish forest
    companies such as SCA and StoraEnso.
  • Currently (2010), stump harvesting is conducted
    by StoraEnso in the counties of
    Västergötland, Östergötland, Småland and
    Halland.

20
The Model
  • Two parts
  • A model describing the interlinkages between the
    different
    parts of the forest sector,
  • A second model describing the relation between
    stump harvesting and
    biodiversity via the changes in dead wood.
  • The region is logging area one an
    administrative district roughly
    corresponding to the four northernmost counties
    in Sweden. The motive for choosing this area is
    that the ecological data is mainly relevant for
    this area.
  • Again, the parameters for the forest sector model
    are estimated with 3SLS.

21
The Model (cont.)
  • The ecological model originates from an
    experiment conducted at ten localities situated
    in the counties of Västerbotten and
    Västernorrland - basically the same region of
    Sweden.
  • The data allows for predictions of the effects
    from stump harvesting on population densities of
    saproxylic beetles - used as proxy for
    biodiversity.
  • The ecological analysis showed that stump
    harvesting will reduce the population density of
    saproxylic beetles per ha in a an approximately
    one to one relationship, i.e. if 80 percent of
    the stumps are harvested about 80 percent of the
    population remaining on the clear-cut is gone.

22
Simulations
  • In the simulations we will assume that the demand
    for biofuels, originating from heating plants
    within cutting area one, will increase by 3 TWh
    (equivalent to approximately 1.6 million m3
    wood).
  • Furthermore, we assume that about 20 percent (350
    000 m3fub) of this increase will consist of
    demand of primary forest fuel.
  • In the simulations, this will translate to a 30
    percent exogenous increase in the demand for
    primary forest fuel at every price level.

23
Results
  • Our calculations for this sparsely populated
    region in Sweden give at hand that about 3.4 of
    the clear-cut area need to be subjected to stump
    harvest every year to provide the required volume
    of forest fuel.
  • This means that future stump harvesting projects,
    with the aim to fulfill the objective Reduced
    Climate Impact, might overturn the objective A
    Rich Diversity of Plant and Animal Life due to
    the dramatic reduction in dead wood volume on
    clear-cuts.
  • No nonmarket value of lost biodiversity has been
    estimated in this paper, but it is clear that a
    cost-benefit analysis of an increased use of
    biofuels through stump harvesting that does not
    take the goal conflict with respect to
    biodiversity into account, would seriously
    underestimate the costs of such a solution to the
    increased demand for carbon-neutral energy.

24
Thank you for your attention!
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