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    The world’s largest company by revenue does not want to be a top source of greenhouse gas emissions. Walmart was already working to reduce emissions from its own operations; last year, the mega-retailer launched Project Gigaton, which aims to help its suppliers do the same. The goal: Helping suppliers avoid 1 billion tons of emissions by 2030, by using more renewable energy and more recycled content in packaging. By the end of 2017, Walmart said it had diverted about 78% of waste from its facilities that would have gone to landfills, thanks to recycling and other measures.

    In a separate sustainability effort, Walmart is also moving to cut waste in its grocery business—a significant move from a company that has become the largest grocer in the U.S. Such efforts don’t just protect the environment; they also protect Walmart’s operating margins.

    CORRECTION: This article has been updated to more accurately describe the activity covered by Project Gigaton.

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    Company Information

    Impact Segment
    Environmental Impact
    General Merchandisers
    C. Douglas McMillon
    Company Type
    Revenues ($M) (Last Fiscal Year)$500,343
    Profits ($M) (Last Fiscal Year)$9,862
    Market Value ($M)$265,337