Carnival Corporation and Carnival Cruise Line have been recognized by the Port of Seattle with two Sustainable Century Awards, highlighting their efforts to reduce environmental impacts and promote sustainable operations.

Carnival Corporation received the Environmental Performance Award for its participation in the Quiet Sound program, an initiative that encourages vessels to slow down while passing through Washington State's Admiralty Inlet. The program aims to reduce underwater noise levels that can affect the endangered Southern Resident killer whale population. According to Quiet Sound, Carnival Corporation achieved the highest participation rate among cruise operators involved in the program.

Meanwhile, Carnival Cruise Line earned the Environmental Innovation Award for its "Our Sea Pledge" sustainability program. The initiative has helped significantly reduce food waste across the fleet, cutting the amount generated per guest by more than half since 2019.

The cruise line has also made progress in reducing single-use packaging, eliminating more than 116,000 glass bottles through closed-loop systems, while recycling over 25 million pounds of material during 2025.

The awards recognize the company's continued efforts to improve environmental performance and support sustainability initiatives both at sea and in the communities where its ships operate.