Short answers, pulled from the story.
The Port of Shanghai is the largest port in the world in both cargo tonnage and activity, having regained its position as the world's busiest port by cargo tonnage in 2009 and the world's busiest container port in 2010.
The ancient port of Ostia Antica, located at the mouth of the Tiber River, now lies two kilometers from the sea due to centuries of silting and sand invasion.
The Port Newark-Elizabeth Marine Terminal in New Jersey was the world's first maritime container seaport, revolutionizing how goods are moved across the globe before the introduction of the container transformed ports into multimodal distribution hubs.
Over 7,000 invasive species are transported in bilge water around the world on a daily basis, leading to predation, disease, and other health conditions for native sea life.
The port of Narvik in Norway exists primarily because it is a warm-water port, or ice-free port, available year-round despite the harsh winters of the region.
The Port of Tangier Med is the largest port on the Mediterranean and in Africa by capacity, having gone into service in July 2007.