Sustainability Report - Antofagasta PLC

50
Antofagasta plc Sustainability Report 2011
Environmental Performance
Performance in 2011
Antofagasta Minerals has measured its carbon
emissions according to the Carbon Disclosure Project’s
methodology since 2008. 1 This includes scope 1
emissions, which are emissions from sources that are
controlled or owned by Antofagasta Minerals, and
scope 2 emissions, which covers emissions from
purchased electricity. In 2010 Antofagasta Minerals
began reporting some Scope 3 emissions. These are
the result of other indirect emissions, such as the
extraction and production of purchased materials and
fuels and transport in vehicles not owned or controlled
by Antofagasta Minerals.
In 2011, Antofagasta Minerals emitted 1.76 million
tonnes of CO 2 equivalent (CO 2 e) compared with 1.18
million tonnes in 2010 (scope 1 and 2 emissions). The
increase is due to rising energy use with the expansion
of Los Pelambres and Esperanza’s first full year of
operation, resulting in a 23% increase in Group copper
production to 640,500 tonnes. At our other operations,
emissions either decreased slightly or remained
constant.
Los Pelambres
Esperanza
El Tesoro
Michilla
Total for Antofagasta Minerals
1 CDP: The Carbon Disclosure Project is a non-governmental organisation that holds figures for
greenhouse emissions and global warming. For more information visit its website http://www.
cdproject.net/.
Carbon footprint - emissions by scope (tonnes of CO 2 equivalent)
Scope 1: direct emissions
Scope 2: indirect emissions
Scope 3: travel and contractor emissions
Total
* Scope 1 and 2 emissions only.
n/a: not applicable.
Breakdown of CO 2 emissions in 2011 (tonnes of CO 2 equivalent)
Scope 1
direct emissions
159,275
152,535
118,077
24,675
454,562
2011
454,562
1,311,620
536,502
1,766,182*
(Total including
scope 3 emissions
2,302,68)
Our scope 2 emissions increased by almost 50% from 0.75
million tonnes of CO 2 in 2010 to 1.3 million tonnes of CO 2 in
2011. This was due to a significant rise in the emissions factor
of the energy grid that supplies Los Pelambres’ electricity. As
well as affecting our total CO 2 emissions, this increase affected
CO 2 emission intensity. In 2011, CO 2 emission intensity was 2.76
tonnes of CO 2 emitted per tonne of fine copper produced (scope
1 and 2 emissions). This is an increase of 0.49 tonnes (21%) per
tonne of fine copper produced, compared with 2010 (2.27).
Scope 2
Indirect emissions
510,429
475,518
215,811
109,862
1,311,620
Scope 3
Travel & contractor
emissions
129,982
10,617
331,707
64,197
536,502
Total
Emissions
1 + 2 + 3
799,686
638,670
665,595
198,734
2,302,685
2010
426,649
757,555
n/a
1,184,204*
2009
360,695
645,974
n/a
1,006,669*
CO emissions intensity
2
(total CO emissions per tonne of
2
fine copper produced)
1.63
6.97
3.43
3.20
2.76