Download Use of wood and wood products in the light of the climate change

Use of wood and wood products in
the light of the climate change
discussion
by Hillevi M Eriksson
Growing awareness about...
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increasing GHG concentrations
need for reduced emissions
threat against humans and nature
that climate has changed already
UNFCCC in Rio - 92
• aim towards no adverse effects
Major cause:
fossil fuel combustion
• Major emittors:
citizens in
industrialized
countries
The Kyoto Protocol
• .. is awaiting Russia - then
legally binding
• aim towards reduced net
emissions (<5 %)
– from reduced fossil-fuel use
– from afforestation?
Sink option problems
• ”eternal” cost to
maintain new C stock
• potentially:
– lowered production of
low-cost biofuels
– high costs for
accounting and
administration
Biofuels replacing fossil fuels
- long-term viable option
• CO2 tax reduced
Swedish emission
with 5-10 %
• wood house - same
C stock as in oil for
one year => energy
source more
important
Climate-related arguments for
using wood-based products:
• Higher wood product consumption =>
– higher production of byproduct biofuels
– higher production of rest-product biofuels
• Wood requires relatively little energy for
its production and use