Changing the world is no simple feat—and not a task that can be tackled alone. At risk of sounding cliché, I’m a firm believer in the age-old notion: “it takes a village.” Especially when it comes to the lofty goal of creating solutions for some of the world’s biggest problems.
Fortune releases fourth annual list of companies helping the planet and tackling social problems.
The world’s largest company by revenue does not want to be a top source of greenhouse gas emissions. So Walmart last year launched Project Gigaton, aiming to reduce emissions related to its operations by a total of 1 billion tons by 2030.