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Carnival Corp. aims to achieve a 25% reduction in greenhouse gas emissions intensity by 2029, measured on an available lower berth days basis compared to its 2019 baseline.
After reaching its 2030 goal five years ahead of schedule — cutting GHG emissions intensity by 20% in 2025 — the company raised its original target by five points and accelerated its timeline to achieve the goal a year earlier, in 2029.
The efficiency work behind this milestone is also showing up on the bottom line with fuel-efficiency gains on track to save the company roughly $650m in 2026 versus 2019 levels.
The progress, detailed in Carnival Corp.'s newly published 2025 Sustainability Report, is driven by a comprehensive decarbonization strategy focused on operational improvements, energy efficiency investments and low-GHG power generation.
Since 2008, the company has reduced its GHG emissions intensity by 44%, meaning emissions associated with each passenger have been cut roughly in half during that period.
"Achieving our 2030 GHG reduction goal five years early is a significant milestone that reflects years of disciplined investment, innovation and operational focus across our global fleet," Carnival Corp. CEO Josh Weinstein said.
"But we're not treating it as a finish line. Our new 2029 target ensures we're continuing to improve every part of the equation, from using less fuel to advancing the tools, technologies and infrastructure that will help us lower emissions even further over time."
Operational enhancements, including smart itinerary planning and voyage optimization tools, help identify the most fuel-efficient routes and sailing patterns. Carnival Corp. is also integrating technologies that reduce energy demand, improve hydrodynamic performance and capture energy that would otherwise be wasted.
These efforts range from power saver packs that reduce HVAC and lighting loads to waste heat recovery systems and air lubrication systems that help ships move with less friction through the water.
Complementing these initiatives, seven new ships scheduled to join the fleet through 2033 are expected to deliver more than 20% greater efficiency per passenger than current ships.
At the same time, Carnival Corp. is investing in a range of reduced GHG technologies and solutions. This includes a growing fleet of LNG-powered ships, expanded shore power capabilities, increased biofuel use as more supply comes online and peak energy use shaving with battery storage systems.
