Our Planet

Delivering Environmental Action for Health

As an impact-driven organization, we are guided by our purpose of Advancing Health Outcomes for All® and are committed to creating solutions for a healthier environment.

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Our Impact

Our Climate Change Position Statement

We’re on a journey to amplify our environmental action and social impact.

Learn More

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Our Approved Science-Based Targets

In December 2022, our near-term, science-based climate change targets received approval from the Science-Based Targets initiative (SBTi).

Learn more about our SBTi commitments.

View the Press Release

Greenhouse Gas Emissions Reduction

We know that we have a pivotal role to play in reducing greenhouse gas (GHG) emissions across our value chain. That’s why we have committed to working with our suppliers in connection with our Science-Based Target initiative (SBTi) targets.

SBTi, a collaboration between CDP (formerly the Carbon Disclosure Project), the United Nations Global Compact, World Resources Institute and the World Wide Fund for Nature, drives climate action in the private sector by encouraging companies to set targets to limit global warming to 1.5°C. McKesson has joined companies across the globe committed to setting and achieving targets to reduce GHG emissions toward this goal.

We also engage with the National Academies of Medicine and the Association for Health Care Resource & Materials Management of the American Hospital Association on reducing GHG emissions

We are taking steps designed to reduce both our direct GHG emissions and those produced in our upstream and downstream value chain.

McKesson’s Greenhouse Gas Emissions

McKesson’s GHG emissions in metric tons CO2e	FY20	FY23	FY24
Direct (Scope 1) GHG emissions	88,219	79,293	79,848
Indirect (Scope 2) GHG emissions – Location-Based	190,289	140,582	153,783
Indirect (Scope 2) GHG emissions – Market-Based	189,365	140,215	152,129
Gross Scope 1 + Scope 2 – Location-Based	278,508	219,875	233,631
Gross Scope 1 + Scope 2 – Market-Based	277,584	219,508	231,977
Gross Scope 3 Emissions	25,426,174	28,980,752	32,569,160

Notes to the Chart

See Overview in ESG Markers section of the 2024 Impact Report for more fiscal year reported data and details about our assurance process and Scope 3 category-specific information.

See our Basis of Reporting — Greenhouse Gas (GHG) Emissions in ESG Markers section for more details about our GHG inventory and associated methodology.

Actual numbers will fluctuate as we re-baseline, adjusting for divestitures and acquisitions, per the Greenhouse Gas Protocol.

Reducing Our Carbon Footprint Across Our Business Operations

From increasing our use of renewable energy to deploying more sustainable packaging and reducing waste, we are moving forward with green initiatives.

McKesson’s Virtual Power Purchase Agreements (VPPAs) can be a useful tool to help us procure more energy from renewable sources in support of our GHG emissions reduction strategy. A VPPA is a financial contract that is similar to a power purchase agreement, but does not involve the physical delivery of electricity.

As of 2024, we have entered into two VPPAs with project developers in Texas for a total of 35 megawatts (MW).

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One of the ways we seek to be impactful is by integrating more sustainable design features into our company campuses, distribution centers and other real-estate holdings. These sustainable features enable us to enhance energy efficiency through innovative technology and green building standards, and create a better working environment for our employees.

In 2024, we developed our own green building and design standards, curated to consider McKesson’s specific operations and facility types, and identified a sample set of locations where we are assessing performance against these standards for projects in the future. We have begun to benchmark our facilities against our standards, and continue to identify improvements and opportunities in increasing building efficiency.

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McKesson’s Medical Surgical team has implemented a reusable system to transport cold chain products by their private fleet. The reusable solution is qualified by a third party to hold 2-8C for 24 hours with a seasonal pack out. McKesson has a summer and winter pack out to protect our products during seasonal shifts.

The reusable system includes: a reusable outer shell to protect during transport, a reusable inner lining for insulation, and a reusable phase change material (PCM) designed to maintain 2-8C.

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We know the importance of a robust, reliable and efficient transportation network. We have continued to explore strategies to advance sustainability by cutting fuel usage and decreasing carbon emissions across our fleet. These strategies include leveraging advanced routing software to enhance efficiency and taking a range of actions to optimize load capacities and minimize empty trips.

Additionally, McKesson Medical-Surgical services successfully piloted two makes and models of electric vehicles (EVs).