Walmart Project Gigaton: Supplier Emissions Support

Supply Walmart? Emissions reporting isn't goodwill anymore — it's tied to how you're evaluated as a supplier.

Project Gigaton — Walmart's supplier climate program — set out to cut one billion metric tons (a “gigaton”) of supply-chain emissions. That goal was hit years ahead of schedule, which means the bar has moved up, not away. Walmart now expects fuller, higher-quality disclosure from suppliers: complete Scope 1 and 2 data, clearer Scope 3, renewable energy share, and real reduction targets. Weak or missing data is increasingly a competitive liability with your largest customer.

How Dune Helps

•      Calculate your Scope 1 and 2 footprint — the total-company reporting scope Walmart actually asks for, not a carved-out slice

•      Set credible, science-aligned reduction targets that hold up to scrutiny

•      Submit clean, defensible data into the program without the guesswork

•      Position you competitively against other suppliers scored on the same criteria

Why It Matters

Reporting quality now influences supplier standing — and Walmart's broader climate strategy (including net-zero operational emissions by 2040) means these expectations only tighten. Getting your emissions data right protects the relationship and sets you apart.

Supplying Walmart and unsure where your reporting stands? Let's talk.

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