- Lack of economically viable market-based CO2e offsets and credits.
- Performance of environmental management system.
- Performance of existing technology related to CO2e emission reductions.
- Development of future technologies related to CO2e emissions.
- Continued evolution and development of ESG methodologies, frameworks and standards.
- Market adoption of products with less environmental impact.
- Ability to reduce turnover at desired levels and within desired timelines.
Summit Materials, Inc.
Greenhouse gas emissions & sustainability report data
In its 2023 reporting, Summit Materials, Inc. disclosed greenhouse gas emissions of 1.73M MT CO2e. By scope: Scope 1: 1.73M MT CO2e; Scope 2: 0.28M MT CO2e. Figures are as stated in the company's own report and may use different boundaries, units or methods (for example market-based vs location-based Scope 2), so compare with care.
GHG Emissions
1.73M MT CO2e
2023
Renewable Energy
30%
of total energy
Water Usage
1.2K k cubic meter (utility only)
2023
Waste
9.3K metric tons of cement kiln dust (775 tons landfilled 8552 tons shipped off-site)
2023
Energy Use
7.17M GJ
2023
📊 Emissions by Scope (2023)
| Scope | What it covers | Reported value |
|---|---|---|
| Scope 1 | Direct emissions from sources the company owns or controls (fuel combustion, company vehicles, process and fugitive emissions). | 1.73M MT CO2e |
| Scope 2 | Indirect emissions from purchased electricity, steam, heat and cooling. | 0.28M MT CO2e |
New to scopes? Read Scope 1, 2 and 3 emissions explained and market-based vs location-based Scope 2.
📈 Emissions by Report Period
| Report period | Headline emissions figure reported |
|---|---|
| 2023 | 1.73M MT CO2e |
| 2022 | 2.14M tCO2e/year |
| 2021 | 2.24M tCO2e/year |
| 2020 | 1.96M MT CO2e |
Each row is the headline figure extracted from a different report; scope coverage and methodology can change between years.
✅ Reported Environmental Achievements
- Exceeded expectations with lower diesel fuel usage in fleet and higher thermal substitution rate at cement plants, reducing costs and emissions.
- Full implementation of Portland Limestone Cement (PLC), a lower clinker factor cement in certain markets.
- Expansion at Green America Recycling facility to increase use of alternative fuels in cement production.
- Recycled asphalt accounted for 20% of total tons produced in 2023.
- Captured methane at landfill business in Kansas.
🎯 Climate & Sustainability Targets
🔜 Short-term
- Reduce water consumption by 10% by 2030
- Reduce waste to landfill by 80% by 2030
📅 Medium-term
- Reduce CO2e emissions to 1.6-2.0 M MT by 2030
- Achieve 30% renewable energy by 2030
- Reduce employee turnover to 30% by 2030
- Match % diversity in employee base to 60% by 2030
🔭 Long-term
- Reduce CO2e emissions to 0.5-1.2 M MT by 2050 (with offsets to reach net zero)
- Achieve 100% renewable energy by 2050
- Reduce employee turnover to 20% by 2050
- Match % diversity in employee base to 90% by 2050
- Reclaim land to 20% of total acres by 2050
🌱 ESG Focus Areas
Carbon ReductionLand ReclamationHuman/Social Impact