Oil spills from container ships or offshore platforms are a frequent hazard to marine and coastal ecosystems and an expensive one to clean up.

CNN: Cleaning up oil spills with magnets and nanotechnology

These days my pack is filled with a small container of olive oil, dried herbs, salt and pepper and fresh fruit rather than packets of dehydrated beans and rice or bags of quick-cooking oatmeal flavored with desiccated strawberries.

NPR: Forget The Granola: Camp Cooking Goes Gourmet

Some suspect that waste industrial oil containing dioxin and PCBs was placed into a container meant for recycled frying fats.

CNN: THE GREAT DIOXIN SCARE

Today, half the world's container trade, and much of its oil, pass within 5km of Aden, but northern rule, and the country's fierce protection of its independence, have turned the port into a backwater.

ECONOMIST: Yemen's discontented south