- Lack of commercially viable technology to reduce emissions in cement production.
- Compliance with differing ASTM International, TXDOT, and customer specifications.
- Differing regulations for alternative fuels and additives in the U.S. compared to other countries.
- Potential for increased costs or disruptions due to energy or fuel price/availability impacts from climate change regulation or severe weather.
Martin Marietta Materials, Inc.
Greenhouse gas emissions & sustainability report data
In its 2022 reporting, Martin Marietta Materials, Inc. disclosed greenhouse gas emissions of 4.6K million metric tonnes CO2e/year (Scope 1). By scope: Scope 1: 4.6K million metric tonnes CO2e/year; Scope 2: 0.626 million metric tonnes CO2e/year. 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
4.6K million metric tonnes CO2e/year (Scope 1)
2022
Waste
3.5 million tons of concrete processed, over 3 million tons sold/year (recycled concrete)
2022
Energy Use
1.5 million kilowatt hours/year (purchased power)
2022
📊 Emissions by Scope (2022)
| 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). | 4.6K million metric tonnes CO2e/year |
| Scope 2 | Indirect emissions from purchased electricity, steam, heat and cooling. | 0.626 million metric tonnes CO2e/year |
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 |
|---|---|
| 2022 | 4.6K million metric tonnes CO2e/year (Scope 1) |
| 2019 | 4.50 million metric tonnes CO2e/year |
Each row is the headline figure extracted from a different report; scope coverage and methodology can change between years.
✅ Reported Environmental Achievements
- Reduced coal in cement kiln fuel mix from 70% to 15% of total fuel usage.
- Continued progress on achieving Scope 1 and 2 GHG reduction commitments for 2030 for cement and magnesia businesses.
- Converted more than 90% of Type I/II cement customers in Texas to PLC or Type 1L cement, estimated to produce up to 10% less GHG emissions.
- Construction of wind turbines at Woodville, OH facility projected to reduce GHG emissions by up to 10,000 metric tons per year.
- Reduced carbon intensity from cement operations to 0.725 net metric tonnes per metric tonne of cement, better than the U.S. industry average.
🎯 Climate & Sustainability Targets
🔜 Short-term
- Reduce Scope 1 CO2e process emissions intensity from heritage cement operations by 15% compared to 2010 levels by 2030.
- Reduce Scope 1 CO2e process emissions intensity from magnesia specialties business by 10% compared to 2010 levels by 2030.
- Offset or reduce Scope 2 CO2e emissions by 30% by 2030 versus 2021 baseline.
🔭 Long-term
- Net Zero Scope 1 and 2 CO2e emissions by 2050.
🌱 ESG Focus Areas
Climate ChangeDiversity & InclusionGovernanceSafetyCommunity EngagementEnvironmental Stewardship