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Footnotes
to Table SPM-1 (Question
6.2.2)
a
- Buildings include
appliances, buildings,
and the building shell.
b
- The range for agriculture
is mainly caused by
large uncertainties
about CH4,
N2O
and soil related emissions
of CO2.
Waste is dominated by
landfill methane and
the other sectors could
be estimated with more
precision as they are
dominated by fossil
CO2.
c
- Included in sector
values above. Reductions
include electricity
generation options only
(fuel switching to gas/nuclear,
CO2
capture and storage,
improved power station
efficiencies, and renewables).
d
- Total includes all
sectors reviewed in
Chapter 3 for all six
gases. It excludes non-energy
related sources of CO2
(cement production,
160MtC; gas flaring,
60MtC; and land use
change, 600-1,400MtC)
and energy used for
conversion of fuels
in the end-use sector
totals (630MtC). Note
that forestry emissions
and their carbon
sinks mitigation
options are not included.
e
- The baseline
SRES
scenarios (for six
gases included in the
Kyoto Protocol) project
a range of emissions
of 11,500–14,000MtCeq
for 2010 and of 12,000–16,000MtCeq
for 2020. The emissions
reduction estimates
are most compatible
with baseline emissions
trends in the SRES-B2
scenario. The potential
reductions take into
account regular turn-over
of capital stock. They
are not limited to cost-effective
options, but exclude
options with costs above
US$100/tCeq
(except for Montreal
Protocol gases) or options
that will not be adopted
through the use of generally
accepted policies.
Source
& © :
 IPCC
TAR SPM of WG III
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