COST-EFFECTIVE CARBON

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COST-EFFECTIVE CARBON Colin Price School of
the Environment and Natural ResourcesBangor
University
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SOME PRICES FOR CARBON Note these prices were
compiled from a wide range of sources in 1993,
and can probably be more or less doubled now.
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CO2
CO2
CO2
CO2
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Difference in mean annual net cost
Difference in mean carbon stock
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In an investment context, the break-even price of
carbon fixing is given by
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Photo John Tay
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Source Healey, Price Tay (2000)
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Sitka spruce YC 12 80 tonnes for nothing! Sitka
spruce YC 12 commercial versus unmanaged Mean
annual net cost 200 Difference of
mean carbon ?250 80 tonnes 1.17 per tonne
per year
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• Somewhat longer rotations
• give greater mean growing stock storage
• produce a greater proportion of slow-decaying
  products
• entail only slightly reduced net annual income,
  so
• represent cheap extra carbon

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Single-tree continuous cover forestry worst
case(harvesting penalty 5 / m3 dysgenic
effect 20) Mean net cost per year 230
(65 53) tonnes 19 per tonne per year
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The material of the moment
Painted concrete
Photo University of Wales
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In an investment context, the break-even price of
carbon fixing is given by
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THREE WAYS OF USING TREES TO REDUCE NET CARBON
EMISSIONS Discount rate
Fix fossil fuel emissions, then use the product
165 87 as biomass fuel
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THREE WAYS OF USING TREES TO REDUCE NET CARBON
EMISSIONS Discount rate
Fix fossil fuel emissions, then use the product
330 174 as biomass fuel
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Newport, C12th replaced 1913?
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Llandaff,c.1170 (replaced?)
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Bangor, 1350?
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St Asaph, C15th
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Brecon, C15th
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St Davids, C16th
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CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2
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Price of flux approach grow-and-utilise-structura
lly Note add 10 to allow for carbon emissions
in harvesting Discount rate Without
steel With steel replacement replacement 6
172 34 3.5 85 17 2 31 6.5 1 FREE! FRE
E!
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Even at a 6 discount rate Douglas fir yield
class 20 cost of carbon 25 / tonne without
steel replacement or 5 / tonne with steel
replacement
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