Climate change data
- Energy consumption by type and business unit
- Energy consumption by energy type
- Indirect energy consumption by source
- Specific energy consumption, Mega Joules per tonne of production
- CO2 emissions
- Scope 1 and Scope 2 CO2e emissions by source
- Scope 3 (indirect) CO2e emissions by source
- Specific CO2e emissions, kg CO2e per unit of production
- Cement business
- Lime business
1. Energy consumption by type & business unit
1,000 Giga Joules
Total energy
| (Baseline) 2004 | 2007 | 2008 | 2009 | 2010 | 2011 | ||
|---|---|---|---|---|---|---|---|
| Total energy | Total (Combined) | 11,802 | 12,347 | 12,378 | 10,172 | 10,058 | 9,836 |
| Quarry materials business | 10,372 | 11,122 | 11,376 | 9,479 | 9,419 | 9,307 | |
| Building products business | 1,430 | 1,224 | 1,003 | 693 | 639 | 529 | |
| Direct Energy | Total (Combined) | 10,423 | 10,854 | 10,975 | 9,044 | 8,838 | 8,678 |
| Quarry materials business | 9,195 | 9,797 | 10,119 | 8,455 | 8,298 | 8,235 | |
| Building products business | 1,228 | 1,056 | 857 | 589 | 540 | 443 | |
| Indirect energy | Total (Combined) | 1,379 | 1,493 | 1,403 | 1,127 | 1,219 | 1,157 |
| Quarry materials business | 1,177 | 1,325 | 1,257 | 1,024 | 1,121 | 1,071 | |
| Building products business | 202 | 168 | 146 | 103 | 99 | 86 |
Data notes:
- Direct energy includes fossil fuels and waste-derived fuels, including biomass fuels; Indirect energy includes electricity.
- Annual data reported as December to November.
2. Energy consumption by energy type
%
| Baseline 2004 | 2007 | 2008 | 2009 | 2010 | 2011 | |
|---|---|---|---|---|---|---|
| Diesel | 24.06 | 23.09 | 20.07 | 17.99 | 18.48 | 15.81 |
| Natural gas | 32.92 | 32.11 | 27.61 | 28.03 | 25.97 | 26.81 |
| Coal and petroleum coke | 20.13 | 15.97 | 19.18 | 17.92 | 17.40 | 17.23 |
| Waste-derived fuel | 0.00 | 5.24 | 5.72 | 8.69 | 9.39 | 9.95 |
| Processed fuel oil and light fuel oil | 10.52 | 11.14 | 12.42 | 12.93 | 12.65 | 12.24 |
| Electricity purchased | 11.68 | 12.09 | 11.33 | 11.08 | 12.12 | 11.77 |
| Marine and heavy fuel oil | 0.28 | 0.13 | 3.45 | 3.16 | 3.02 | 3.32 |
| LPG paraffin and petrol | 0.43 | 0.24 | 0.22 | 0.19 | 0.98 | 2.86 |
Data notes:
- In 2011 this data has been restated to remove the international businesses.
- Annual data reported as December to November.
3. Indirect energy consumption by source
% / 1,000 Giga Joules
| % | 1,000 Giga Joules | |
|---|---|---|
| Coal | 28 | 324.09 |
| Natural gas | 60 | 694.49 |
| Nuclear | 1 | 11.57 |
| Renewables | 9 | 104.17 |
| Other | 2 | 23.15 |
Data notes:
- This data represents our energy provider's use of fuels to generate the electricity we purchase.
- Annual data reported as December to November.
4. Specific energy consumption, Mega Joules per tonne of production
Mega Joules per tonne of production
Sand and gravel
Crushed rock
Asphalt
Ready mixed concrete
Building products
| 2009 | 2010 | 2011 | |
|---|---|---|---|
| Sand and gravel | 54.37 | 54.53 | 57.13 |
| Crushed rock | 41.98 | 38.96 | 39.59 |
| Asphalt | 399.56 | 383.30 | 352.86 |
| Ready mixed concrete | 6.60 | 6.17 | 6.60 |
| Building products | 186.29 | 140.93 | 179.45 |
Data notes:
- Includes electricity, fossil fuels and waste-derived fuels, including biomass fuels.
- Annual data reported as December to November.
- Cement and lime data are excluded for reasons of commercial confidentiality.
- Ready mixed concrete previously reported as 'MJ/m3', reporting unit has been changed to 'MJ/t' and backdated for comparability.
- Sand and gravel data includes land won, wharfs, Tarmac Marine Dredging (TMD) and sand drying; figures have been updated to reflect more accurate data capture.
- Energy efficiency of land won sand and gravel = 41.26 MJ/t.
- The percentage specific energy consumption reduction figure quoted in the report includes all products and energy, so is different to the data set above, which is provided for comparison with the industry.
5. CO2e emissions
Tonnes CO2e
| Baseline 2004 | 2007 | 2008 | 2009 | 2010 | 2011 | ||
|---|---|---|---|---|---|---|---|
| Total CO2e emissions | Total (Combined) | 1,551,540 | 1,781,787 | 1,680,711 | 1,348,680 | 1,468,891 | 1,439,633 |
| Quarry materials business | 1,457,941 | 1,697,681 | 1,611,077 | 1,299,710 | 1,423,206 | 1,401,099 | |
| Building products business | 93,598 | 84,106 | 69,634 | 48,970 | 45,685 | 38,534 | |
| Direct CO2e emissions | Total (Combined) | 1,381,619 | 1,571,178 | 1,471,444 | 1,179,454 | 1,285,830 | 1,269,415 |
| Quarry materials business | 1,312,201 | 1,512,155 | 1,423,598 | 1,145,986 | 1,254,962 | 1,243,430 | |
| Building products business | 69,419 | 59,023 | 47,846 | 33,467 | 30,868 | 25,985 | |
| Indirect CO2e emissions | Total (Combined) | 210,239 | 290,743 | 279,924 | 229,443 | 243,277 | 170,218 |
| Quarry materials business | 145,741 | 197,636 | 187,479 | 153,724 | 168,244 | 157,669 | |
| Building products business | 24,180 | 25,083 | 21,788 | 15,502 | 14,817 | 12,549 |
Data notes:
- Direct CO2e emissions include Scope 1 direct CO2e emissions from combustion of fossil fuels and waste-derived fuels, excluding biomass, and direct process emissions.
- Indirect CO2e emissions include Scope 2 emissions from electricity.
- Annual data is for December to November.
- For all except cement and lime, CO2e emissions are calculated using Guidelines to Defra's Greenhouse Gas Conversion Factors for Company Reporting – for the appropriate year's data.
- For cement and lime, emissions are reported in accordance with the EU Emissions Trading Scheme Monitoring, Reporting and Verification Guidelines.
6. Scope 1 and Scope 2 CO2e emissions by source
%
| 2011 | |
|---|---|
| Diesel | 8.4 |
| Natural gas | 9.3 |
| Coal and petroleum coke | 10.5 |
| Waste-derived fuel | 3.0 |
| Processed fuel oil and light fuel oil | 6.6 |
| Electricity purchased | 11.8 |
| Marine and heavy fuel oil | 1.7 |
| LPG paraffin and petrol | 1.3 |
| Process emissions | 47.4 |
Data notes:
- Includes direct emissions from process emissions and combustion of fossil fuels and waste-derived fuels, excluding biomass, indirect emissions from electricity.
- Process emissions are the carbon dioxide released by the chemical change of limestone into calcium oxide during the manufacture of lime and cement.
- Annual data reported as December to November.
7. Scope 3 (indirect) CO2e emissions by source
t CO2e / %
| Quarry materials business | Building products business | Total | % | |
|---|---|---|---|---|
| Purchased fuels | 98,602 | 4,955 | 103,557 | 39.70 |
| Water supply and treatment | 1,461 | 184 | 1,646 | 0.63 |
| Employee business travel | 4,361 | 1,297 | 4,376 | 1.68 |
| Product distribution | 134,763 | 0 | 134,763 | 51.66 |
| Waste disposal to licensed landfill | 4,690 | 780 | 5,470 | 2.10 |
| Landfill emissions | 11,037 | 0 | 11,037 | 4.23 |
Data notes:
The emissions in each category are explained below:
- Purchased fuels: Indirect emissions associated with the extraction and transport of primary fuels as well as the refining, distribution, storage and retail of finished fuels.
- Water supply and treatment: Emissions of greenhouse gases associated with the supply and treatment of water and the industry's buildings and transport.
- Employee business travel: Emissions associated with the production and use of fuel for transporting employees for business purposes; this category includes all business mileage, air travel and rail travel.
- Product distribution: Emissions associated with the production and use of fuel for transporting products; this category includes distribution by road and rail of all products from the quarry materials business.
- Waste disposal to licensed landfill: Emissions associated with the disposal of waste to landfill; 'mixed commercial and industrial waste' factors are used in the absence of more specific data. This includes the waste sent to licensed landfill from our recycling business.
- Landfill emissions: Emissions associated with the flaring of methane from landfill sites owned and operated by Tarmac's quarry materials business. The figures are estimated according to gas pumping rates and typical methane concentration.
8. Specific CO2e emissions, kg CO2e per unit of production
kg CO2e per unit of production
Sand and gravel
Crushed rock
Asphalt
Ready mixed concrete
Building products
| 2009 | 2010 | 2011 | |
|---|---|---|---|
| Sand and gravel | 4.67 | 4.69 | 5.07 |
| Crushed rock | 3.74 | 3.61 | 3.78 |
| Asphalt | 27.63 | 27.71 | 26.84 |
| Ready mixed concrete | 0.75 | 0.72 | 0.76 |
| Building products | 13.21 | 13.76 | 12.87 |
Data notes:
- Includes direct emissions from process emissions and combustion of fossil fuels and waste-derived fuels, excluding biomass, indirect emissions from electricity.
- Reported figures are carbon dioxide equivalents and account for the impact of the emission of other greenhouse gases; this is a more complete reporting method but gives slightly higher results than kgCO2/t.
- Annual data reported as December to November.
- Cement and lime data excluded for reasons of commercial confidentiality.
- Sand and gravel data includes land won, wharfs, Tarmac Marine Dredging (TMD) and sand drying; figures have been updated to reflect more accurate data capture.
- Land won sand and gravel emissions = 4.04 kg CO2e/tonne.
- The percentage specific carbon emissions reduction figure quoted in the report includes all products and energy, so is different to the data set above, which is provided for comparison with the industry.
9. Cement business
Direct CO2 emissions per tonne of cement (as PCe) as a percentage of baseline
%
| Baseline | 2007 | 2008 | 2009 | 2010 | 2011 | |
|---|---|---|---|---|---|---|
| CO2 emissions per tonne of cement as a percentage of baseline | 100 | 64 | 61 | 59 | 59 | 59 |
Direct CO2 emissions (tonnes)
tonnes CO2
| Baseline | 2007 | 2008 | 2009 | 2010 | 2011 | |
|---|---|---|---|---|---|---|
| Direct CO2 emissions | 313,912 | 618,320 | 541,655 | 544,746 | 589,154 | 607,188 |
Production and CO2 emissions as a percentage of baseline
%
| Baseline | 2007 | 2008 | 2009 | 2010 | 2011 | |
|---|---|---|---|---|---|---|
| Production of Cement (as PCe) as a percentage of baseline | 100 | 309 | 282 | 293 | 317 | 327 |
| CO2 as a percentage of baseline | 100 | 197 | 173 | 174 | 188 | 193 |
Data notes:
- CO2 emissions per tonne of PCe reduced by 41% compared to the 1998–2000 baseline.
- Baseline is the average for 1998/1999/2000. Includes direct combustion and process emissions according to the EU Emissions Trading Scheme Monitoring, Reporting and Verification Guidelines.
10. Lime business
Direct CO2 emissions per tonne of lime (CaO) as a percentage of baseline
%
| Baseline | 2007 | 2008 | 2009 | 2010 | 2011 | |
|---|---|---|---|---|---|---|
| CO2 emissions per tonne of lime (CaO) as a percentage of baseline | 100 | 101 | 99 | 98 | 93 | 92 |
Direct CO2 emissions (tonnes)
tonnes CO2
| Baseline | 2007 | 2008 | 2009 | 2010 | 2011 | |
|---|---|---|---|---|---|---|
| Direct CO2 emissions | 559,779 | 605,351 | 522,118 | 371,693 | 377,360 | 361,968 |
Production and CO2 emissions as a percentage of baseline
%
| Baseline | 2007 | 2008 | 2009 | 2010 | 2011 | |
|---|---|---|---|---|---|---|
| Production of Lime (CaO) as a percentage of baseline | 100 | 107 | 94 | 68 | 73 | 70 |
| CO2 as a percentage of baseline | 100 | 108 | 93 | 66 | 67 | 65 |
Data notes:
- Baseline is the average for 1998/1999/2000. Includes direct combustion and process emissions according to the EU Emissions Trading Scheme Monitoring, Reporting and Verification Guidelines.