In 2024, Alcoa 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).
Alcoa has also provided a category-level breakdown for 8 out of 15 Scope 3 emissions categories, offering greater transparency into its value chain emissions.
| Metric (tCO2e) | 2024 | 2023 | 2022 | 2021-2019 |
|---|---|---|---|---|
Total Scope 1 | 15,570,000a | 16,530,000a | 16,800,000a | |
Total Scope 2 | ||||
Location-Based | 4,440,000a | 3,810,000a | 4,000,000a | |
Total Scope 3 | 53,960,000a | 48,150,000a | 49,570,000a | |
Total Scope 1 Revenue Intensity (tCO2e/$M) | 1,308.9533a | 1,566.6761a | 1,349.2892a |
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In 2024, the total operational greenhouse gas (GHG) emissions of Alcoa amounted to 20,010,000 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 2023, the total operational greenhouse gas (GHG) emissions of Alcoa decreased by 1.62%, showing that the company has made progress in taking action to reduce the climate impact of its operations.a
In 2024, the total Scope 1 emissions of Alcoa were 15,570,000 metric tons of CO₂ equivalent (tCO₂e).a
Since 2019, Alcoa's Scope 1 emissions have decreased by 12.03%, reflecting a declining long-term trend in Scope 1 emissions over time.ab
Compared to the previous year (2023), Alcoa's Scope 1 emissions decreased by 5.81%, highlighting the company's efforts to lower direct emissions from assets it owns or controls.a
In 2024, Alcoa reported Scope 2 greenhouse gas (GHG) emissions of 4,440,000 tCO₂e using the location-based method.a
Since 2019, Alcoa's Scope 2 greenhouse gas (GHG) emissions (Location-Based) have decreased by 32.73%, reflecting a declining long-term trend in Scope 2 emissions over time.ac
Compared to the previous year (2023), Alcoa's Scope 2 emissions (Location-Based) rose by 16.54% in 2024, suggesting that the company faced challenges in reducing emissions from purchased electricity and energya
In 2024, Alcoa reported its Scope 2 emissions using the location-based method.a
In 2024, Alcoa reported 53,960,000 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 2024 disclosure of Alcoa includes a breakdown across 8 of the 15 Scope 3 categories defined by the GHG Protocol, matching the level of disclosure in 2023, demonstrating consistent Scope 3 emissions reporting coverage year over year.a
In 2024, Alcoa reported total Scope 3 emissions of 53,960,000 metric tons of CO₂ equivalent (tCO₂e).a
Approximately 30.04% of these emissions originated from upstream activities such as purchased goods and capital goods, while 69.96% came from downstream activities like product use, distribution, and end-of-life treatment.a
Since 2019, Alcoa's Scope 3 emissions have increased by 39.25%, reflecting a rising long-term trend in Scope 3 emissions over time.ab
Compared to the previous year (2023), Alcoa's Scope 3 emissions increased by 12.07%, suggesting that the company faced challenges in reducing emissions across its value chain.a
In 2024, Alcoa reported emissions for 8 out of the 15 Scope 3 categories defined by the GHG Protocol.a
This partial disclosure allows for some insight into the company's indirect impacts.
In 2024, the largest contributors to Alcoa's Scope 3 emissions were:a
In 2024, Alcoa reported Scope 1 greenhouse gas (GHG) emissions of 15,570,000 tCO₂e and total revenues of USD 11,895 millions. This translates into an emissions intensity of 1,308.95 tCO₂e per millions USD.a
In 2024, Alcoa reported a Scope 1 emissions intensity of 1,308.95 tCO₂e per millions USD. Compared to the peer group median of 580.72, this places the company above its industry benchmark, indicating it is less carbon-efficient than most competitors.a
In 2024, Alcoa ranked 19 out of 24 companies in its industry peer group, based on Scope 1 emissions intensity (measured in tCO₂e per millions USD).a
Alcoa is therefore positioned in the mid-range of its industry, neither a clear leader nor a laggard in carbon efficiency.a
In 2024, Alcoa reported a total carbon footprint of 73,970,000 metric tons of CO₂ equivalent (tCO₂e) across Scope 1, Scope 2, and Scope 3 emissions. This represents a 8% increase compared to 2023, suggesting a rise in emissions across its operations or value chain.a
The largest contributor to Alcoa's total carbon footprint was Scope 3 emissions, accounting for 72.95% of the company's total carbon footprint, followed by Scope 1 emissions at 21.05%.a