A shipment of forest timber traveled around the southern tip of Africa and across the Indian Ocean before it arrived at the Hong Kong dockyards two years ago. During a routine X-ray examination, customs officials discovered an even more lucrative cargo hidden behind a false wall: 605 elephant tusks.

Researchers here have found a way to convert ethanol and other biofuels into hydrogen very efficiently.

A new catalyst makes hydrogen from ethanol with 90 percent yield, at a workable temperature, and using inexpensive ingredients.

We are in the midst of World Water Week. The 2008 theme is “Progress and Prospects on Water: For a Clean and Healthy World with Special Focus on Sanitation.” World Water Week is a international conference focused on collaboration and the promotion of work that advances environmental and humanitarian development.

While each person in the UK drinks, hoses, flushes and washes their way through around 150 litres of mains water a day, they consume about 30 times as much in “virtual” water embedded in food, clothes and other items — the equivalent of about 58 bathtubs full of water every day.