Buy your fair-trade coffee beans by all means, but don't assume fair-trade principles govern the conditions of the men who fetch it to you. You would be mistaken.
Seafarers are used to being exploited. At sea, the captain moans at chandlers who supply ships with green bananas that will never ripen; at fruit that goes moldy obscenely fast; at sub-standard meat.
Of all the peoples of the world, the Chinese are probably the most at home with their excrement. They know its value. For 4,000 years they have used raw human feces to fertilize fields.
In 2000, twice as much water was used throughout the world as in 1960. By 2050, half of the planet's projected 8.9 billion people will live in countries that are chronically short of water.
Since the 1920s, when some U.S. cruise ships decided to fly a Panamanian flag to avoid Prohibition regulations, ships have commonly flown the flag of countries foreign to their owners. The benefits are obvious: lower taxes, laxer labor and safety laws.
Shipping is the greenest method of transport. In terms of carbon emissions per ton per mile, it emits about a thousandth of aviation and about a tenth of trucking. But it's not benign, because there's so much of it. So shipping emissions are about three to four percent, almost the same as aviation's.
Shipping is so cheap that it makes more financial sense for Scottish cod to be sent 10,000 miles to China to be filleted, then sent back to Scottish shops and restaurants, than to pay Scottish filleters.
Seafaring can be lucrative - the elite, such as gas-tanker captains, can earn $100,000 for six months' work - but the isolation is a heavy price to pay.
In the Communist era, excrement took on political importance, because Party policy decided excrement was essential for the Great Agricultural Leap Forward.
I find Suez astonishing for the first hour. It is a ditch in a desert, but a stunning one. The sensation of being hemmed in by huge ships, moving at a stately pace through a man-made waterway, is extraordinary.
We are wasting our water mostly by putting waste into it. One cubic meter of wastewater can pollute ten cubic meters of water. Discharging wastewater into oceans turns freshwater into the less useful salty stuff, and desalination is expensive.
All that is known for sure is that endometriosis is endemic and that it cannot be cured. Management is the best hope. This makes for treatments that are, if I am being polite, based on trial and error. If I am feeling less generous, they are shots in the dark.
You've probably been asked to care about things like HIV/AIDS or T.B. or measles, but diarrhea kills more children than all those three things put together. It's a very potent weapon of mass destruction.
We know about man's impact on the ocean in terms of fishing and overfishing, but we don't really know much about what's happening underneath the water. And in fact, shipping has a role to play here, because shipping noise has contributed to damaging the acoustic habitats of ocean creatures.
Usually, there is no equivalent of air traffic control at sea. Some busy areas operate 'traffic separation schemes,' but mostly, ships are treated like cars on roads where there are rules and codes of behavior, and successful, accident-free outcomes depend on everyone respecting them. As on roads, this doesn't always work.
Rotavirus does not cause all diarrhea, but it causes a lot of it. Instead of a single vaccine dose, however, harried nurses may have to give several, as diarrhoea makes it difficult for a child to retain anything.
