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## Environmental, Social and Governance Appendix Independent review continued 

## 3.2.1.2 Total electricity consumed 

Approximately 85 per cent of the electricity data for the reporting period was obtained directly from actual tenancy or building data. The remaining 15 per cent of energy consumption was estimated by either: 

– where invoiced data existed for an office for part of the reporting period, determining daily electricity consumed for that part of the reporting period and extrapolating this out to the remainder of the reporting period for that office 

– where historical data exists for the office this is used to estimate the electricity consumed for the reporting period 

– where no invoice data was available for a particular office, estimating electricity consumed for that office based on the Net Lettable Area of the office and the average electricity consumption per square metre of other offices in the same region. 

Emission factors outlined in section 3.2.2 have then been applied to determine the equivalent indirect emissions associated with electricity consumed (Scope 2 emissions). 

## 3.2.1.3 Other indirect emissions associated with business air travel (Scope 3 emissions) 

Air travel data was based off reports provided by International SOS, the organisation contracted to monitor MGL staff travel and provide emergency assistance where required. 

Emission factors outlined in section 3.2.2 have then been applied to mileage to determine the equivalent indirect emissions associated with business air travel (Scope 3 emissions). 

## 3.2.2 Measurement of GHG emissions 

The following emissions factors have applied in calculating GHG emissions (tonnes CO$_{2}$-e): 

<img src='content_image/167678.jpg'>

Scope 2 emissions factors used for Australian and United States offices, and Scope 3 emissions factors for all air travel include greenhouse gases in addition to carbon dioxide and are expressed in carbon dioxide equivalents (CO$_{2}$-e) as stipulated within the associated reference documents. Scope 2 emission factors used for the United Kingdom and remaining office locations only comprise carbon dioxide emissions (CO$_{2}$) as stipulated within the reference documents. The jurisdictional variance in approaches to Scope 2 methodology had no material effect on outcome. 

## 3.3 Carbon offsets purchased and retired 

All carbon offsets purchased were registered under the international Gold Standard issued by the Gold Standard Foundation, Voluntary Carbon Standard issued by the VCS Association or US Climate Action Reserve protocol. 

