In 2025, Bayer 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).
Bayer has also provided a category-level breakdown for 14 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 | 1,890,000a | 1,880,000a | 1,890,000b | |
Total Scope 2 | ||||
Market-Based | 900,000a | 1,080,000a | 1,120,000b | |
Location-Based | 1,480,000a | 1,650,000a | 1,660,000b | |
Total Scope 3 | 9,100,000a | 8,820,000a | 9,180,000b | |
Total Scope 1 Revenue Intensity (tCO2e/$M) | 35.2739a | 38.7638a | 35.846b |
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In 2025, the total operational greenhouse gas (GHG) emissions of Bayer amounted to 3,370,000 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 Bayer decreased by 4.53%, showing that the company has made progress in taking action to reduce the climate impact of its operations.a
In 2025, the total Scope 1 emissions of Bayer were 1,890,000 metric tons of CO₂ equivalent (tCO₂e).a
Since 2019, Bayer's Scope 1 emissions have decreased by 9.13%, reflecting a declining long-term trend in Scope 1 emissions over time.a
Compared to the previous year (2024), Bayer's Scope 1 emissions remained relatively stable, indicating that Bayer's emissions have plateaued with no significant change in its operational footprint.a
In 2025, Bayer reported Scope 2 greenhouse gas (GHG) emissions of 900,000 tCO₂e using the market-based method and 1,480,000 tCO₂e using the location-based method.a
Since 2019, Bayer's Scope 2 greenhouse gas (GHG) emissions (Location-Based) have decreased by 16.38%, reflecting a declining long-term trend in Scope 2 emissions over time.a
Compared to the previous year (2024), Bayer's Scope 2 emissions (Location-Based) fell by 10.3% in 2025, showing that the company has made progress in taking action to reduce the climate impact of its energy consumption.a
In 2025, Bayer reported its Scope 2 emissions using the market-based method and using the location-based method.a
In 2025, Bayer reported 9,100,000 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 Bayer includes a breakdown across 14 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, Bayer reported total Scope 3 emissions of 9,100,000 metric tons of CO₂ equivalent (tCO₂e).a
Approximately 94.64% of these emissions originated from upstream activities such as purchased goods and capital goods, while 5.36% came from downstream activities like product use, distribution, and end-of-life treatment.a
Since 2019, Bayer's Scope 3 emissions have decreased by 11.99%, reflecting a declining long-term trend in Scope 3 emissions over time.a
Compared to the previous year (2024), Bayer's Scope 3 emissions remained relatively stable, indicating that Bayer's emissions have plateaued with no significant change in its value chain footprint.a
In 2025, Bayer reported emissions for 14 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 Bayer's Scope 3 emissions were:a
In 2025, Bayer reported Scope 1 greenhouse gas (GHG) emissions of 1,890,000 tCO₂e and total revenues of USD 53,581 millions. This translates into an emissions intensity of 35.27 tCO₂e per millions USD.a
In 2025, Bayer reported a Scope 1 emissions intensity of 35.27 tCO₂e per millions USD. Compared to the peer group median of 4.98, this places the company above its industry benchmark, indicating it is less carbon-efficient than most competitors.a
In 2025, Bayer ranked 24 out of 25 companies in its industry peer group, based on Scope 1 emissions intensity (measured in tCO₂e per millions USD).a
This places Bayer among the least efficient performers, with one of the highest emissions intensities in its sector.a
In 2025, Bayer reported a total carbon footprint of 12,470,000 metric tons of CO₂ equivalent (tCO₂e) across Scope 1, Scope 2, and Scope 3 emissions. This represents a 0.97% increase compared to 2024, suggesting a rise in emissions across its operations or value chain.a
The largest contributor to Bayer's total carbon footprint was Scope 3 emissions, accounting for 72.98% of the company's total carbon footprint, followed by Scope 1 emissions at 15.16%.a