Mckesson

McKesson, a US-headquartered company in Pharmaceutical Preparation Manufacturing, has detailed its global carbon emissions and climate commitments.

In 2025, McKesson reported total Scope 1, 2, and 3 emissions of approximately 36.27 billion kg CO2e. This includes Scope 1 emissions of 72.22 million kg CO2e, market-based Scope 2 emissions of 119.94 million kg CO2e, and Scope 3 emissions of approximately 36.08 billion kg CO2e. The largest contributors to Scope 3 were purchased goods and services, accounting for approximately 35.58 billion kg CO2e, and upstream transportation and distribution at 285.63 million kg CO2e.

Looking back, McKesson's emissions in previous years were:

• 2024: Total emissions were approximately 32.80 billion kg CO2e, with Scope 1 at 79.85 million kg CO2e, market-based Scope 2 at 152.13 million kg CO2e, and Scope 3 at approximately 32.57 billion kg CO2e.
• 2023: Total emissions were approximately 29.28 billion kg CO2e, comprising Scope 1 at 79.29 million kg CO2e, market-based Scope 2 at 140.22 million kg CO2e, and Scope 3 at approximately 28.98 billion kg CO2e.
• 2022: Total emissions were approximately 27.13 billion kg CO2e, with Scope 1 at 74.03 million kg CO2e, market-based Scope 2 at 183.35 million kg CO2e, and Scope 3 at approximately 26.88 billion kg CO2e.
• 2021: Total emissions were approximately 26.16 billion kg CO2e, consisting of Scope 1 at 102.99 million kg CO2e, market-based Scope 2 at 179.91 million kg CO2e, and Scope 3 at approximately 25.78 billion kg CO2e.
• 2020: Total emissions were approximately 25.70 billion kg CO2e, with Scope 1 at 88.22 million kg CO2e, market-based Scope 2 at 189.37 million kg CO2e, and Scope 3 at approximately 25.43 billion kg CO2e.

McKesson has set Science-Based Targets initiative (SBTi) approved reduction targets. The company is committed to reducing absolute Scope 1 and 2 greenhouse gas emissions by 50.4% by fiscal year 2032, using a fiscal year 2020 base year. Additionally, McKesson aims for 70% of its suppliers, by spend covering purchased goods and services, to have science-based targets by fiscal year 2027. These targets are considered consistent with reductions required to keep global warming to 1.5°C.