Los Angeles-based engineering giant Jacobs claims it will be carbon neutral this year, and "carbon negative" by 2030.
It says it will achieve this year’s target through 100% renewable energy use in offices, plus changes to operations and business travel.
The target of "carbon negative" by 2030 would mean it takes more carbon out of the atmosphere than it puts in.
The goals are part of its "Climate Action Plan" released today to mark the 50th anniversary of Earth Day.
The company won six awards in 2019 from Environmental Business International for environmental and climate change work.
Steve Demetriou, Jacobs’ chief executive (top image), said: "Today, we reveal a plan that sets us apart – capturing the shared passion, pride and drive of our people as we work to preserve our planet for future generations.
"From the way we operate our business, to the work we perform with clients and other organisations, Jacobs’ Climate Action Plan details how we will continue to make a positive environmental, societal and economic difference for businesses, governments and communities around the world."
Image: Steve Demetriou (Jacobs)