Carnival Corp. now says it is getting rid of 18 ships, up from the 13 ships it planned to dispose of in early July. The company did not reveal which ships would be sold or scrapped. Eight have already left the fleets of Carnival’s nine cruise brands, which operate more than 100 ships. “We continue to take aggressive action to emerge a leaner, more efficient company,” Carnival Corp. President and CEO Arnold Donald said. “We are accelerating the exit of 18 less-efficient ships from our fleet. This will generate a 12 percent reduction in capacity and a structurally lower cost...