Walmart, Ikea, and Amazon have a dirty shipping problem New report identifies the biggest corporate culprits of maritime emissions Share this story SAN PEDRO, CALIFORNIA - FEBRUARY 01: A container ship enters the Port of Los Angeles on February 1, 2021 in San Pedro, California. As of January 28, a record 38 container ships were on standby to offload cargo to the ports of Long Beach and Los Angeles amid a wave of online consumer goods purchases in the U.S. amid the pandemic. Photo by Mario Tama/Getty Images Giant retailers, including Amazon and Ikea, have pledged to go green, but their shipping is still pretty dirty. Now shoppers can now see how much pollution some of the biggest retail companies in the US each generate while bringing goods into the country, thanks to a new report. In 2019, the 15 companies in the report generated almost as much climate pollution as 1.5 million American homes do in a year.