We endeavour to minimise our environmental impact wherever possible and have established procedures to reduce our environmental footprint including powering off lights, computers and other equipment during evenings and weekends, recycling office waste, and rationalising business travel through a set of clear guidelines and approvals which we rigorously adhere to.

In the year to 31 March 2015 our measured Scope 1 and 2 emissions were 411.7 tonnes CO2e. This comprised:

Scope Emissions source CO2e emissions (tonnes) for year to 31 March 2015 CO2e emissions (tonnes) for year to 31 March 2014
1 Combustion of fuel and operation of our facilities 12.6 28.0
2 Electricity, heat, and cooling purchased for our own use 300.2 358.2
  Total 411.8 386.2

This equates to 1.52 tonnes CO2e per employee for the year to 31 March 2015 (2014: 1.39 tonnes CO2e per employee), based on an average number of employees during the year (calculated under the investment basis) of 271 (2014: 277 employees).

We have restated the emissions figures for the year to 31 March 2014 to reflect improved data collection and analysis techniques which allows a more accurate comparison between 2014 and 2015. Our total Scope 1 and 2 emissions have increased by 6.6% due principally to better data coverage as well as an increase in overall emissions from electricity usage due to business growth.

We have reported on all of the emission sources required under the Companies Act 2006 (Strategic Report and Directors’ Reports) Regulations 2013. These sources fall within our consolidated financial statements. 

We quantify and report our organisational greenhouse gas emissions according to the Greenhouse Gas Protocol and Defra’s Environmental Reporting Guidelines. Results are reported in tCO2e although Scope 2 emissions for overseas electricity have been calculated in tCO2 as the UK Government’s overseas electricity emissions factors currently account for CO2 emissions only. Emissions for all of our sites have been included and we have chosen to exclude fugitive Scope 1 emissions from a cooling unit located at our London office as it is considered immaterial to our overall footprint. The greenhouse gas sources that constitute our operational boundary are:

- Scope 1: natural gas combustion within boilers; and
- Scope 2: purchased electricity for own use.

In some cases, missing data has been estimated using either extrapolation of available data or data from the previous year as a proxy. We have worked with Carbon Credentials Energy Services to verify our greenhouse gas emissions.

3i also reports its greenhouse gas emissions and climate change data to the Carbon Disclosure Project.