The world's cargo
ships are getting big, really big. No surprise, perhaps, given the volume of
goods produced in Asia and consumed in Europe and the US. But are these giant
symbols of the world's trade imbalance growing beyond all reason?
What is blue, a
quarter of a mile long, and taller than London's Olympic stadium?
The answer - this
year's new class of container ship, the Triple E. When it goes into service this
June, it will be the largest vessel ploughing the sea.
Each will contain as
much steel as eight Eiffel Towers and have a capacity equivalent to 18,000
20-foot containers (TEU).
If those containers
were placed in Times Square in New York, they would rise above billboards,
streetlights and some buildings.
Or, to put it another
way, they would fill more than 30 trains, each a mile long and stacked two
containers high. Inside those containers, you could fit 36,000 cars or 863
million tins of baked beans.
This image from Maersk shows what 18,000
shipping containers look like in the wrong place
The Triple E will not
be the largest ship ever built. That accolade goes to an "ultra-large
crude carrier" (ULCC) built in the 1970s, but all supertankers more than
400m (440 yards) long were scrapped years ago, some after less than a decade of
service. Only a couple of shorter ULCCs are still in use. But giant container
ships are still being built in large numbers - and they are still growing.
It's 25 years since
the biggest became too wide for the Panama Canal. These first
"post-Panamax" ships, carrying 4,300 TEU, had roughly quarter of the
capacity of the current record holder - the 16,020 TEU Marco Polo, launched in
November by CMA CGM.
In the shipping
industry there is already talk of a class of ship that would run aground in the
Suez canal, but would just pass through another bottleneck of international
trade - the Strait of Malacca, between Malaysia and Indonesia. The
"Malaccamax" would carry 30,000 containers.
The current crop of
ultra-large container vessels can navigate the Suez - just - but they are only
able to dock at a handful of the world's ports. No American harbour is equipped
to handle them.
The sole purpose of
the soon-to-be-launched Triple E ships will be to run what's called a pendulum
service for Maersk - the largest shipping company in the world - between Asia
and Europe.

They arrive in Europe
full, and when they leave a significant proportion of containers carry nothing
but air. (At any given moment about 20% of all containers on the world's seas
are empty.)