ghg-inventory-1990-2013

population of non-dairy cattle, sheep and deer that resulted in lower emissions associated
with these types of livestock, and a decrease in emissions from agricultural liming.
Decreased emissions from the Waste sector were primarily due to improved landfill
management, resulting in lower methane emissions from solid waste disposal on land in
2013, compared to 2012.
The increase in emissions from the IPPU sector was the result of combined increases in
emissions from the product uses as substitutes for ODS, as well as small increases in CO 2
emissions from the metal industry and mineral industry.
Net emissions – Climate Change Convention reporting
Net emissions include emissions from the Energy, IPPU, Agriculture and Waste sectors,
together with emissions and removals from the LULUCF sector.
In 1990, New Zealand’s net greenhouse gas emissions were 38,065.7 kt CO 2 -e. In 2013,
net greenhouse gas emissions had increased by 16,134.8 kt CO 2 -e (42.4 per cent) to
54,200.5 kt CO 2 -e (figure 2.1.1). The four categories that contributed the most to the
increase in net emissions between 1990 and 2013 were land converted to forest land,
enteric fermentation from dairy cattle, road transportation and land converted to
grassland.
Figure 2.1.1
New Zealand’s total and net emissions (under the Climate Change Convention)
from 1990 to 2013
90,000
80,000
70,000
kt CO 2 equivalent
60,000
50,000
40,000
30,000
20,000
10,000
0
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
Total emissions (excluding LULUCF)
Net emissions (including LULUCF)
Accounting under the Kyoto Protocol
New Zealand uses 1990 as a base year for accounting under the Kyoto Protocol. The total
emissions in 1990 are currently estimated at 66,720.2 kt CO 2 -e. This differs from
previous estimates for the base year because the time series of emissions reported in each
inventory submission are subject to continuous improvement.
In 2013, net removals were –20,464.4 kt CO 2 -e from all land under Article 3.3 and
forest management land under Article 3.4 of the Kyoto Protocol (see section 2.4 for
further detail).
32 New Zealand’s Greenhouse Gas Inventory 1990–2013