In 2024, Ionis Pharmaceuticals 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) and Scope 2 (indirect emissions from purchased energy).
However, Ionis Pharmaceuticals has not published a category-level breakdown of its Scope 3 emissions, limiting visibility into specific value chain sources.
| Metric (tCO2e) | 2024 | 2023 | 2022 | 2021-2019 |
|---|---|---|---|---|
Total Scope 1 | 2,616a | 2,695a | 2,456a | |
Total Scope 2 | ||||
Market-Based | 2,530a | 2,788a | 1,841a | |
Location-Based | N/A | N/A | N/A | |
Total Scope 3 | N/A | N/A | N/A | |
Total Scope 1 Revenue Intensity (tCO2e/$M) | 3.7099a | 3.4216a | 4.1814a |
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In 2024, the total operational greenhouse gas (GHG) emissions of Ionis Pharmaceuticals amounted to 5,146 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 Ionis Pharmaceuticals decreased by 6.15%, 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 Ionis Pharmaceuticals were 2,616 metric tons of CO₂ equivalent (tCO₂e).a
Since 2021, Ionis Pharmaceuticals's Scope 1 emissions have increased by 1.95%, reflecting a rising long-term trend in Scope 1 emissions over time.ab
Compared to the previous year (2023), Ionis Pharmaceuticals's Scope 1 emissions decreased by 2.93%, highlighting the company's efforts to lower direct emissions from assets it owns or controls.a
In 2024, Ionis Pharmaceuticals reported Scope 2 greenhouse gas (GHG) emissions of 2,530 tCO₂e using the market-based method.a
Since 2021, Ionis Pharmaceuticals's Scope 2 greenhouse gas (GHG) emissions (Market-Based) have increased by 23.29%, reflecting a rising long-term trend in Scope 2 emissions over time.ab
Compared to the previous year (2023), Ionis Pharmaceuticals's Scope 2 emissions (Market-Based) have remained relatively stable, indicating that Ionis Pharmaceuticals's emissions have plateaued with no significant change in its energy consumption footprint.a
In 2024, Ionis Pharmaceuticals reported its Scope 2 emissions using the market-based method.a
In 2024, Ionis Pharmaceuticals reported Scope 1 greenhouse gas (GHG) emissions of 2,616 tCO₂e and total revenues of USD 705 millions. This translates into an emissions intensity of 3.71 tCO₂e per millions USD.a
In 2024, Ionis Pharmaceuticals reported a Scope 1 emissions intensity of 3.71 tCO₂e per millions USD. Compared to the peer group median of 2.76, this places the company above its industry benchmark, indicating it is less carbon-efficient than most competitors.a
In 2024, Ionis Pharmaceuticals ranked 12 out of 21 companies in its industry peer group, based on Scope 1 emissions intensity (measured in tCO₂e per millions USD).a
Ionis Pharmaceuticals is therefore positioned in the mid-range of its industry, neither a clear leader nor a laggard in carbon efficiency.a