89
does not show how much the climate will be affected by the increased accumulation
of GHGs or the consequent effect of climate
change on countries.
Data might not be
available for some sources in some countries.
(d) Alternative Definitions/Indicators: Total quantities of annual GHG emissions or
GHG emissions normalized per unit of energy use could be alternative indicators.
This analysis would provide an indication of the trend of increasing or decreasing
carbonization of the energy system. There are a number of other gases resulting from
energy use
that indirectly produce GHGs, and these could also be included in the
scope of the definition.
ASSESSMENT OF DATA
(a) Data Needed to Compile the Indicator: Data on total GHG emissions from
energy sources and the breakdown by component:
• CO
2
, CH
4
and N
2
O emissions.
• GHG emissions from energy production and use.
• GHG emissions from transportation.
• Total population for normalization of
total GHG emissions per capita, unit:
tonnes CO
2
/capita.
• GDP in national currency or converted to US dollars ($) using purchasing
power parities for normalization of total GHG emissions per unit of GDP, unit:
tonnes CO
2
/$1000.
It is recommended that, in countries
where GHG targets exist, these targets be stated
in the indicator (although it is recognized that such targets generally apply to all
emission sources within a country, and not just the energy-related sectors). These
could be expressed either as a percentage reduction in absolute
emissions from a base
year (as specified by the Kyoto Protocol) or as an intensity target (as for the case of
the GHG goal of the USA).
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