Comparing corporate performance on climate change – what metrics? Dr. Craig Mackenzie Director, Carbon Benchmarking Project University of Edinburgh Business School

The scope for low cost reductions Source: Vattenfal

Breakdown of the Tesco footprint Add note on fridge energy? Refrigeration Tesco CSR Report 2007

Direct CO2e emissions No Data

Relative carbon intensity? NB: this slide does not give an accurate comparison of performance No Data

Meaningful comparison? NB: this slide does not give an accurate comparison of performance Food processing business Food non-food split Food- non-food split Food non-food split Use of biodiesel Green tariff electricity Green tariff electricity Data estimated Data incomplete No Data

Add note on fridge energy? Refrigeration Tesco CSR Report 2007 An alternative strategy % f-gas leakage pa KWh/linear meter of refrigeration Diesel litres/pallet delivered Average store energy rating % electricity from renewables weighted for additionality

Wider implications Benchmarking needs: Better data quality Sharper standards Segmental carbon reporting Identification and reporting on normalisation factors Avoiding carbon reductionism Activity-specific metrics Activity/sector-specific reporting standards Collaborative sector/activity projects to define the above