Walmart suppliers exceed Project Gigaton billion-tonne emissions goal six years early

Walmart announced that its suppliers have reported plans expected to exceed Project Gigaton's target of reducing, avoiding, or sequestering 1 billion metric tonnes of greenhouse gas emissions across product value chains, achieving it six years ahead of the 2030 deadline. The milestone signals how large buyers can drive Scope 3 reductions through supplier engagement, a model relevant to Indian suppliers in global retail value chains.

Walmart launched Project Gigaton in 2017 to work with suppliers to reduce, avoid, or sequester 1 billion metric tonnes of greenhouse gas emissions across product value chains by 2030. The company announced that suppliers have now reported plans expected to exceed that 1 billion metric tonne mark six years early. Walmart partnered with WWF, WRI, EDF, and CDP to set science-based targets and was the first retailer to achieve Science-Based Targets initiative approval for its emissions reduction goals.

Suppliers across Walmart's product value chains are directly affected, setting concrete science-based targets in key areas such as energy use and agriculture. According to the company, prioritising emission reductions often improved resilience, reduced costs, enhanced quality, and led to better products for customers, encouraging supplier participation. The initiative spans suppliers globally, including those in manufacturing and agriculture who feed into Walmart's product lines, making the programme a benchmark for buyer-led decarbonisation across retail supply chains.

Suppliers should continue setting science-based emission reduction targets and monitor Walmart's evolving requirements. Walmart plans greater-scope Scope 3 footprint estimations, measuring addressable and non-addressable elements to guide future reduction approaches and research priorities. It will continue supplier partnership emphasising product enhancement and support for goal setting, solutions, learning, and emission assessment. Walmart also intends to engage customers in emission reduction, offering social and financial benefits, so suppliers should track these downstream programmes.

Key figure — Emissions goal met: 1 billion metric tonnes, six years early (before 2030)