Tag Archives: Planetary science

Greenland ice-melt map gets the cold shoulder

Glaciologists and climatologists are racing to correct an error in the latest edition of The Times Comprehensive Atlas of the World, which they say overstates the extent of ice loss in Greenland over the past 12 years.

The 13th edition of the atlas was released on 15 September. The map’s publisher, London-based HarperCollins, said in a press release that it had “had to erase 15% of Greenland’s once permanent ice cover” since the previous edition in 1999. But researchers, who contend that the number is not backed up by scientific evidence, are worried that the error will undermine their credibility. Continue reading Greenland ice-melt map gets the cold shoulder

Caves of Ice: The Next Frontier in Paleoclimatology?

It’s early June in the Austrian Alps. Tourists in shorts sweat their way up a trail from the cable car above Lake Hallstatt. But the summer heat doesn’t stop a group of scientists from pulling on brightly colored jumpsuits over their hiking clothes at the entrance to Mammuthohle, one of the many limestone caves that riddle the Dachstein Massif. Lukas Plan, a geophysicist at the University of Vienna, straps on his headlamp and pauses to warn the crowd of researchers about the cave they are about to enter. It won’t just be chilly inside, he cautions; it will be an Alpine meat locker.

The crowd, part of the fourth international ice cave workshop organized by a network of European geophysicists and glaciologists, is gathered to visit the cave’s year-round ice formations.

Plan turns toward the tunnel in the mountainside and opens the metal door. A rush of wind bursts out. The group prepares to enter, hoping to read the history of the region’s climate in the cave’s ice.

Continue reading Caves of Ice: The Next Frontier in Paleoclimatology?

Narwhals transmit climate data from Arctic seas

The cold water beneath the winter pack ice in Baffin Bay is getting warmer, according to measurements taken by thermometer-wearing narwhals. The data collected from the diving mammals fill in a geographical and seasonal gap in the region’s climate records, as no winter temperatures were previously available from the area. The data also confirm that a warming trend measured during earlier summer-only studies of the West Greenland Current continued in the three years to 2007.

“We basically knew nothing about winters up in Baffin Bay,” says physical oceanographer Mike Steele at the University of Washington in Seattle, who co-authored the study, which appeared last week in the Journal of Geophysical Research. “But there is a lot of interest in the flow of seawater around Greenland.”

Read the rest of this news story on Nature News [html] or here [pdf].

Iceland Reporting Trip Roundup

I went to Iceland in April to report on volcano monitoring during the Eyjafjallajökull eruption for Science Magazine.

That story, which appeared 23 April 2010, is here.

A pair of photos from my field trips appeared in my aunt’s Long Island newspapers (L&M Publications) the week of 26 April. See them here.

A first-person essay on the visit appeared in Global Talent, a Catalan science website, on 4 May, here.

Another feature, including two of my photographs, appeared in the Financial Times Weekend Magazine on 22 May, here.

A news item appeared in Discover Magazine in the September issue, here.