Half a century of thinning ice leaves Greenland’s future looking wet.

There is new evidence that the Greenland ice pack is in retreat. The finding may be a foretaste of still more rapid melting, and in turn, rising sea levels.

The ice sheet over northwest Greenland has thinned by 10-15 cm a year over the past 40 years, two scientists calculate 1 . The trend indicates “a significant long-term thinning”, says one, Niels Reeh, of the Technical University of

Humans learn water-gathering trick from bumpy beetle.

A desert beetle turns fog into drinking water with its wings, new research reveals. Materials mimicking the insect could help humans survive harsh environments.

Southwest Africa’s Namib Desert is one of the hottest and driest places on Earth. There is no rain, but on about six mornings a month a fog blows in off the Atlantic and across the land at gale force.

The beetle Stenocara traps this fleeting resour

Dazzling snapshots show how ions power nerve signals round the body.

“Potassium channels underlie all our movements and thoughts,” says Rod MacKinnon of Rockefeller University in New York. His team has now unravelled the molecular mechanics of these minute protein pores. Some say the work merits a Nobel Prize.

Potassium (K + ) channels power the transmission of nerve signals through the body and the brain by ushering K + ions in and out of our cells. MacKin

With a weather monitoring network a new model could predict coastal floods in Bangladesh. A new model should help forecast the massive floods to which the northern coast of Bangladesh is prone 1 . In principle, the model can predict the heights and arrival times of the huge waves that cyclones cause, and so could improve the planning of sea defences. The effectiveness of the model will depend on the availability of accurate, timely and detailed meteorological data, ca

Researchers have put a new face on what may be an old genetic weapon to help plants fight off a pesky infection. Abhaya Dandekar and colleagues at the University of California at Davis gave plants an extra gene that protected them from crown gall disease—a scourge of the walnut, grape and rose, among others—when tested in the lab. They publish their findings today in the Proceedings of the National Academy of Sciences. When the bacterium that causes crown gall disease enters a plant, it starts

Scientists have long noted that people suffering from Parkinson’s disease commonly exhibit a specific personality type characterized by, among other things, a lower-than-average tendency to seek out new experiences. In explanation, investigators suggested that this trait was rooted in an inability to reap the pleasurable rewards of increased dopamine levels normally brought about by new stimuli because the disease destroys the neurotransmitter. Previous studies of personality and dopamine activi