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Amazon.com contributed more greenhouse gas emissions last year than some big competitors in retail, logistics and technology, but less than rival Walmart Inc. and the world’s biggest energy companies, highlighting the growing scale and diverse businesses of the conglomerate.

In a sign of how much Walmart Inc. is betting on e-commerce, the retailer’s revamped credit-card program with Capital One Financial Corp. offers better rewards for online shopping and checking out with its mobile app.

NEW YORK — Walmart is rolling out a grocery delivery subscription service this fall as it races to gain an advantage in the competitive fresh food business.

Walmart Inc., looking to generate more profit from its online unit, wants to start storing and shipping products for third-party vendors for the first time, just as rival Amazon.com Inc. has done for years.

NEW YORK — Walmart said Aug. 23 that it is working on a resolution with Tesla after the retail giant sued the electric car company’s energy division for installing rooftop solar panels that caught fire.

Recession fears may be mounting in certain parts of the U.S. economy, but Walmart Inc. and Target Corp. are signaling that the all-important American consumer is doing just fine.

NEW YORK — Walmart raised its annual outlook after a strong second quarter for the world’s largest retailer, thanks in part to strong online grocery deliveries.

A three-member panel of the Ninth U.S. Circuit Court of Appeals heard oral arguments Aug. 6 in an appeal by Walmart Transportation of a $54 million jury damage award in 2016.

Walmart Inc. still is trying to get its structure just how it wants it. The retail giant announced its second internal restructuring in as many months as it tries to better integrate its money-losing online business in the United States with its physical stores.

Walmart Inc. has a hole to fill at its online unit, and whoever assumes the role faces a big challenge ahead. The company is searching for a new chief revenue officer for its U.S. e-commerce business, who would work under online leader Marc Lore to help map out its battle plan against Amazon.com, Target Corp. and other rivals.