In some parts of the world sea-level is rising in others it seems to be falling.
But the share of world sea cargo that passes through it has dropped from 5.6% in 1970 to 3.4% in 2004, according to Pablo Armuelles of the University of Panama's Institute of Canal Studies.
Geography is one advantage: rough seas and big tides make the British isles one of the best places in the world for sea power.
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With the magical mix of spectacular scenery, delicious food and drink and world class sea-life, it is a no-brainer to hire a car and get down there fast.
There is no simple technical solution to improve the passenger experience in connecting with the outside world while at sea.
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After treatment, Dr. Kenney claimed that most animals were healthier at Sea World than they had been in the ocean.
The baby penguin stolen from Sea World in Australia is back and safe after it disappeared from the park over the weekend.
But despite the obvious advantages of moving cargo around the world quickly by sea, FastShip's journey from business plan to launch is proving slow.
The prospect of an open world built on sea rather than land, with a fully integrated and robust naval simulator, could really shake up the accepted formula.
It was Dr. Kenney who took credit for naming Shamu, the famed killer whale, and then figured out how to fly her to Sea World from Seattle.
But like the Shamu show at Sea World, the place is always jammed -- and when you think about it, the whale doesn't really do all that many tricks considering the time you waited.
This type of tag, however, requires a buoy to carry the aerial, and this is attached to the shark by a ten-metre-long line. (The line is needed because the sharks themselves rarely break the surface, and the transmitter cannot signal to the satellite from under water.) Two American biologists, Scott Eckert and Brent Stewart, from the Hubbs-Sea World Research Institute in San Diego, have had some success with satellite tracking.
His publications included a book called "Monuments of War: How to Read a War Memorial" and World War II At Sea.
Eventually, clans from each title will actually be able to work together and attempt to take over the world by land, sea, and sky.
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One of the biggest music events in the world, the North Sea Jazz Festival takes place every July at the Ahoy Center in Rotterdam, the Netherlands.
By comparison, China's 36 kilometer (22 mile) Hangzhou Bay Bridge, the world's longest sea-crossing bridge, over seven times the length of the Mumbai bridge, took four years to get completed.
In most parts of the world the surface of the sea is not warm enough for hurricanes to form.
Nonsurfers can head to the high seas for some world-class deep-sea fishing and may be surprised at their unusual level of success.
William Whewell arranged for hundreds of volunteers around the world to measure their local sea levels and send the numbers back to him.
In 1942, the battle of the Coral Sea started in World War II, when naval and air battles began off the Solomon Islands.
In some regions of the world, the increasingly accurate sea level data is being used by planners to mitigate against the risk of flooding.
Sitting on the border between two former Soviet states, Kazakhstan and Uzbekistan, the Aral Sea was once the fourth-largest inland sea in the world.
The Tengiz problem is a mere puddle next to the troubles at Kashagan in the remote North Caspian Sea, the world's largest oilfield discovery in the last three decades.
Bean said men would be forced into the navies of world powers to fight at sea, and when the wars were over the men were unceremoniously dumped back into their towns.
Not so much in Tokelau, where its three atolls of Atafu, Fakaofo and Nukunonu may not be long for this world, due to rising sea levels as a result of climate change.
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While cruising around the world with the Semester at Sea program in 2011, Steitz, now a senior at Claremont McKenna College, was inspired by the diverse fabrics he began collecting from country to country.
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What does that mean for sea levels around the world and for the climate in general?
This region has some of the busiest sea lanes in the world, which are critical to all our economies.
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As you pointed out, 90% of the world's commerce travels by sea.
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