In 2025, Howmet Aerospace completed a corporate carbon footprint assessment and publicly disclosed its greenhouse gas (GHG) emissions according to the GHG Protocol, covering Scope 1 (direct emissions from owned or controlled sources), Scope 2 (indirect emissions from purchased energy) and Scope 3 (indirect emissions across the value chain).
Howmet Aerospace has also provided a category-level breakdown for 10 out of 15 Scope 3 emissions categories, offering greater transparency into its value chain emissions.
| Metric (tCO2e) | 2025 | 2024 | 2023 | 2022-2019 |
|---|---|---|---|---|
Total Scope 1 | 400,000a | 390,000a | 390,000a | |
Total Scope 2 | ||||
Market-Based | 360,000a | 400,000a | 460,000a | |
Location-Based | 390,000a | 390,000a | 420,000a | |
Total Scope 3 | 1,610,000a | 1,780,000a | 2,240,000a | |
Total Scope 1 Revenue Intensity (tCO2e/$M) | 48.4731a | 52.4899a | 58.7349a |
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In 2025, the total operational greenhouse gas (GHG) emissions of Howmet Aerospace amounted to 790,000 metric tons of CO2 equivalent. This figure includes both direct emissions from owned or controlled sources (Scope 1) and indirect emissions from purchased energy (Scope 2).a
Compared to 2024, the total operational greenhouse gas (GHG) emissions of Howmet Aerospace increased by 1.28%, suggesting that the company faced challenges in reducing its emissions from its core operations.a
In 2025, the total Scope 1 emissions of Howmet Aerospace were 400,000 metric tons of CO₂ equivalent (tCO₂e).a
Since 2019, Howmet Aerospace's Scope 1 emissions have decreased by 11.11%, reflecting a declining long-term trend in Scope 1 emissions over time.ab
Compared to the previous year (2024), Howmet Aerospace's Scope 1 emissions increased by 2.56%, suggesting that the company faced challenges in reducing emissions from its directly owned or controlled operations.a
In 2025, Howmet Aerospace reported Scope 2 greenhouse gas (GHG) emissions of 360,000 tCO₂e using the market-based method and 390,000 tCO₂e using the location-based method.a
Since 2019, Howmet Aerospace's Scope 2 greenhouse gas (GHG) emissions (Location-Based) have decreased by 30.36%, reflecting a declining long-term trend in Scope 2 emissions over time.ab
Compared to the previous year (2024), Howmet Aerospace's Scope 2 emissions (Location-Based) have remained relatively stable, indicating that Howmet Aerospace's emissions have plateaued with no significant change in its energy consumption footprint.a
In 2025, Howmet Aerospace reported its Scope 2 emissions using the market-based method and using the location-based method.a
In 2025, Howmet Aerospace reported 1,610,000 metric tons of CO₂ equivalent (tCO₂e) of Scope 3 greenhouse gas (GHG) emissions, representing indirect emissions across its upstream and downstream value chain.a
The 2025 disclosure of Howmet Aerospace includes a breakdown across 10 of the 15 Scope 3 categories defined by the GHG Protocol, matching the level of disclosure in 2024, demonstrating consistent Scope 3 emissions reporting coverage year over year.a
In 2025, Howmet Aerospace reported total Scope 3 emissions of 1,610,000 metric tons of CO₂ equivalent (tCO₂e).a
Approximately 97.53% of these emissions originated from upstream activities such as purchased goods and capital goods, while 2.47% came from downstream activities like product use, distribution, and end-of-life treatment.a
Since 2019, Howmet Aerospace's Scope 3 emissions have decreased by 16.58%, reflecting a declining long-term trend in Scope 3 emissions over time.ab
Compared to the previous year (2024), Howmet Aerospace's Scope 3 emissions remained relatively stable, indicating that Howmet Aerospace's emissions have plateaued with no significant change in its value chain footprint.a
In 2025, Howmet Aerospace reported emissions for 10 out of the 15 Scope 3 categories defined by the GHG Protocol.a
This reflects a high level of granularity and transparency in the company's emissions reporting.
In 2025, the largest contributors to Howmet Aerospace's Scope 3 emissions were:a
In 2025, Howmet Aerospace reported Scope 1 greenhouse gas (GHG) emissions of 400,000 tCO₂e and total revenues of USD 8,252 millions. This translates into an emissions intensity of 48.47 tCO₂e per millions USD.a
In 2025, Howmet Aerospace reported a Scope 1 emissions intensity of 48.47 tCO₂e per millions USD. Compared to the peer group median of 7.41, this places the company above its industry benchmark, indicating it is less carbon-efficient than most competitors.a
In 2025, Howmet Aerospace ranked 22 out of 22 companies in its industry peer group, based on Scope 1 emissions intensity (measured in tCO₂e per millions USD).a
This places Howmet Aerospace among the least efficient performers, with one of the highest emissions intensities in its sector.a
In 2025, Howmet Aerospace reported a total carbon footprint of 2,400,000 metric tons of CO₂ equivalent (tCO₂e) across Scope 1, Scope 2, and Scope 3 emissions. This represents a 6.25% decrease compared to 2024, indicating progress in reducing its overall greenhouse gas output.a
The largest contributor to Howmet Aerospace's total carbon footprint was Scope 3 emissions, accounting for 67.08% of the company's total carbon footprint, followed by Scope 1 emissions at 16.67%.a