Eyjafjallajoekull is erupting again and has sent another ash cloud, 1600 km wide, into the atmosphere. The brownish plume, traveling east and then south, is clearly visible in stark contrast to white clouds framing this Envisat image from 6 May.

The volcano began emitting steam and ash on 20 March, wreaking havoc on European aviation last month. Renewed activity earlier this week caused some flights to be suspended to and from Ireland, Northern Ireland and Scotland.

Authorities are monitoring the position and height of the ash cloud as well as the direction of prevailing Atlantic winds, which pose a problem when they blow south towards Ireland, located 1500 km southeast of the volcano.
Eyjafjallajoekull

New research has found that video gaming is an effective way to reduce anxiety and acute pain caused by medical procedures and could be a useful treatment for chronic pain. The research was presented this week at the American Pain Society’s annual scientific meeting

“Virtual reality produces a modulating effect that is endogenous, so the analgesic influence is not simply a result of distraction but may also impact how the brain responds to painful stimuli,” said Jeffrey I. Gold, Ph.D., associate professor of anesthesiology and pediatrics. “The focus is drawn to the game not the pain or the medical procedure, while the virtual reality experience engages visual and other senses.”

Despite ongoing threats to rain forests in the Amazon and Congo river basins, researchers studying the latest satellite data say that the greatest loss in forest cover from 2000 to 2005 wasn’t in rain forests, but in boreal forests in places like North America.

Their new study in PNAS found that losses were greatest in boreal forests, followed by humid tropical, dry tropical and temperate forests.

Not sure chocolate can save the world?   Here is your chance to take part in a study to find out.  Volunteers selected will have chocolate delivered to their homes and be encouraged to eat 50g of it every day for eight weeks as part of a new research study.

Researchers at Queen's University Belfast, funded by Northern Ireland Chest, Heart&Stroke and the NI Research and Development Office, are to study 110 people with high blood pressure for the opening stage of a three-year project starting in August.

Following a drop in public confidence in climate scientists as a result of the 'Climategate' emails, two hundred fifty-five members of the National Academy of Sciences have joined together to defend the rigor and objectivity of climate science.

Their signed statement, appearing  tomorrow in Science, explains the scientific research process and confirms the fundamental conclusions about climate change based on the work of thousands of scientists worldwide.

A new study in the Journal of Consumer Research has found that shoppers often expect to buy a certain number of unplanned items, and most have a fairly accurate estimate as to how much they will spend on them. The authors use the term "in-store slack" to describe the room shoppers leave in their budget for unplanned purchases.

The researchers conducted a field study at several grocery stores in Texas. Shoppers were asked what they intended to purchase, how much they expected to spend on the planned items, and how much they intended to spend total. After shopping, participants provided their receipts and answered questions about themselves and their purchases. More than 75 percent of the participants included room in their mental budgets for unplanned purchases.