Carbon footprint

The term “carbon footprint” is defined as the total greenhouse gas emissions caused directly and indirectly by an individual, organisation, event or product, and is expressed as tonnes of carbon dioxide equivalent (“CO2e”). AECI’s carbon footprint was calculated using the United Nations’ Intergovernmental Panel on Climate Change Guidelines for National Greenhouse Gas Inventories and the Greenhouse Gas Protocol’s Corporate Accounting and Reporting Standards, as developed by the World Business Council for Sustainable Development.

OPERATING AND ORGANISATIONAL BOUNDARIES USED TO CALCULATE AECI’S CARBON FOOTPRINT

Scope 1 direct emissions – emissions from the consumption of fuel in mobile equipment, emissions from the consumption of fuel in stationary equipment, emissions released from processes occurring at operations, refrigerant usage in air conditioners and refrigeration equipment.

Scope 2 indirect emissions – emissions which arise from the generation of purchased electricity and purchased steam consumed by the Group.

All significant AEL operations, together with the footprint associated with rock-on-ground contracts. AEL’s international operations were also included. Although South African emissions factors relating to electricity generation were used throughout, there was no material impact on the resultant figures; the impact of process emissions from nitric acid production at Modderfontein was calculated using a factor of 298 which is the global warming potential for nitrous oxide (N2O); emissions resulting from the burning of emulsion wastes have not been included due to reporting difficulties;

Specialty chemicals operations – South African emission factors were used for all calculations except for the operations of SANS Technical Fibers (“SANS”) in the USA, in which case the emissions factor for Duke Power Utility (SANS’ electricity provider) was used due to its significant impact on the final result; and

Acacia Real Estate’s operations, which are all in South Africa.

The 3,5% increase in total CO2e emissions was due predominantly to higher Scope 1 emissions reported by AEL, where improvements made to analytical equipment resulted in the more accurate measurement of emissions. AECI’s Scope 2 emissions were predominantly from electricity consumption. The Group consumed 211 239 MWh * of electricity
(2015: 207 888 MWh *). This 1,6% increase was the result of higher production output at Senmin and Specialty Minerals South Africa. AECI’s total energy usage was 2 295 753 GJ * (2015: 2 274 443 GJ *).

TONNES OF CO2 EQUIVALENT:           %
SCOPE 1 2012 2013 2014 2015 2016 change
EXPLOSIVES 188 610 226 946 308 080 229 272 250 511 9
SPECIALTY CHEMICALS 30 593 26 861 22 724 22 897 22 023 (4)
PPROPERTY 62685 76 015 45 422 44 203 42 246 (4)
TOTAL 281 888 * 329 822 * 376 226 * 296 372 * 314 780 * 6

TONNES OF CO2 EQUIVALENT:           %
SCOPE 2 2012 2013 2014 2015 2016 change
EXPLOSIVES 76 277 78 170 74 031 75 714 75 157 (1)
SPECIALTY CHEMICALS 141 225 124 009 150 721 136 860 137 479 0,5
PPROPERTY 6 863 7 378 5 713 4 786 4 452 (7)
TOTAL (SCOPE 2) 224 365 * 209 557 * 230 465 * 217 360 * 217 088 * 0
TOTAL (SCOPES 1 AND 2) 506 253 * 539 379 * 606 691 * 513 732 * 531 868 * 4

 

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