Environment data

We take into account the Greenhouse Gas Protocol in monitoring our environmental performance, and all our data is collected according to The Department for Environment, Food and Rural Affairs (DEFRA) guidelines.

Scope 1 and 2 emissions

tCO₂
Electricity	17,408
Natural gas	4,003
Oil	201
Company cars	626

Scope 1, 2 and 3 emissions

tCO₂
Electricity	17,408
Natural gas	4,003
Oil	201
Company cars	626
Domestic flights	101
International flights less than 3,700km	212
International flights more than 3,700km	167
Domestic rail trips	405
Fuel claimed on expenses and fuel cards	2,704
Unaccounted travel spend	1,304

Measure	Unit
1. Total Scope 1 CO₂	4,830 tCO₂
2. Total Scope 2 CO₂	17,408 tCO₂
3. Total Scope 3 CO₂	4,894 tCO₂
4. Total Scopes 1 & 2 CO₂	22,238 tCO₂
5. Per employee	3.87 tCO₂
6. Per m²	0.15 tCO₂
7. Total Scopes 1, 2 & 3 CO₂	27,131 tCO₂
8. Per employee	4.72 tCO₂
9. Per m²	0.18 tCO₂
10. Waste recycled	2,726 tonnes
11. Per employee	0.47 tonnes
12. Waste landfilled	2,160 tonnes
13. Per employee	0.38 tonnes
15. Water purchased	89,908m³
16. Per employee	15.6m³

Additional Information

In our 2011 CR Report, we provided an indicative figure for our carbon emissions for the enlarged business. We were not 100% confident in its accuracy at the time, which is why it was only indicative. When we collated our data for this year's report, it became apparent that our lack of confidence was justified. Our 2011 emissions were far lower than might be anticipated from that indicative figure, which caused us to re-investigate the data for the additional business in 2010. Whilst not possible to do this within our CR Report publication deadline, AECOM provided us with revised data for 2010 in which we have every confidence, enabling us to submit environmental trend data doing back to 2008 in a submission to the Dow Jones Sustainability Index. You can view the revised Dow Jones Sustainability Index assessment here.