Container ship cargo ocean

Container ships are the backbone of global trade, carrying millions of tons of cargo across continents every day.

About this subject

Container ships revolutionized maritime transport since the 1950s, when American entrepreneur Malcolm McLean pioneered the concept of containerization. Today, giant vessels like the Maersk Triple E class can carry up to 18,000 twenty-foot equivalent units (TEU), measuring over 400 meters in length. Major sea lanes include routes between Asia and Europe via the Suez Canal, and between Asia and the US West Coast across the Pacific.

Operating these ships involves complex logistics, with ports equipped with massive gantry cranes and real-time tracking systems. Brazil, for example, relies heavily on large container ships for exporting agricultural commodities and minerals through the Port of Santos, the largest in Latin America. The trend toward larger vessels challenges port infrastructure and dredging operations to accommodate deeper drafts.

While efficient, container shipping accounts for about 3% of global CO2 emissions, prompting the industry to explore alternative fuels such as LNG, methanol, and even rotor sails to reduce consumption. Modern ships feature optimized hull designs and air lubrication systems to decrease water friction. Safety is paramount, with strict lashing protocols to prevent container losses at sea, which still number in the thousands annually due to storms.

Frequently Asked Questions

What is the largest container ship in the world?

Currently, the largest is the MSC Irina with a capacity of 24,346 TEU, launched in 2023. It measures 400 meters in length and 61.5 meters in width.

How are containers secured on ships to prevent falling?

Twistlocks are used at bottom and top corners, along with lashing rods and chains. Lashing systems follow international safety standards.

How many containers are lost at sea each year?

An estimated 1,000 to 2,000 containers fall overboard annually, mainly due to severe storms or poor lashing. The most famous incident was the MSC Zoe in 2019, losing 342 containers.