Carnival Corporation & plc (Carnival) Thursday, in its sustainability report covering the 2015 year, announced that the company had reduced it's carbon intensity rate by 2.8 percent during the period, translating to a 23.4 percent overall CO2 emissions reduction against the 2005 baseline.
The company also noted that that period saw 41 percent of of the Carnival fleet equipped with exhaust gas scrubbers, an order for the world's first liquefied natural gas (LNG) powered cruise ships, and marked the first cruise ship to be powered by an LNG hybrid barge.
"We know it is increasingly important to have sustainable and transparent operations, so we work hard every day to run our company in a sustainable way, and to share those practices broadly, so that our guests can feel confident that they are making a responsible decision when they book a vacation with us," said Bill Burke, chief maritime officer at Carnival.
"We are committed to providing a safe and comfortable voyage for our guests and crew members as our cruise line brands create great vacations, while at the same time maintaining our deep commitment to protecting the oceans, seas and destinations we visit."
Last year, Carnival said it was not deterred by a lack of LNG bunkering infrastructure when it made its decision to use LNG bunkers to power four newbuild mega-cruise ships.
In April, Royal Dutch Shell plc (Shell) said it has signed an agreement with Carnival to supply LNG bunkers to the cruise line's AIDAprima vessel.