Amazon, which ships millions of packages a year to shoppers' doorsteps, has announced plans to make half of all its shipments carbon neutral by 2030.
The online retail giant said it will use more renewable energy such as solar power, have more packages delivered in electric vans and push suppliers to remake their packaging.
McDonald's, Coca-Cola and other big companies that generate lots of waste have announced similar initiatives, hoping to appeal to customers concerned about the environment.
Amazon is calling its programme Shipment Zero and plans to publicly publish its carbon footprint for the first time later this year.
The Seattle-based firm said it spent the past two years mapping its carbon footprint and working out ways to reduce carbon use across the company.
"It won't be easy to achieve this goal, but it's worth being focused and stubborn on this vision and we're committed to seeing it through," said Dave Clark, Amazon's senior vice president of worldwide operations.