News tagged with ice caps

Methane emissions traced back to Roman times

Emissions of the greenhouse gas methane into the atmosphere can be traced back thousands of years in the Greenland ice sheet. Using special analytical methods, researchers from the Niels Bohr Institute, among ...

Oct 03, 2012
4.2 / 5 (10) 19 | with audio podcast

Image: First Mars orbital photo of 2015

This image was taken on 2 January just after midday GMT, and is one of the first of the Red Planet this year from the low-resolution Visual Monitoring Camera – the 'Mars Webcam' – on ESA's Mars Express ...

Jan 07, 2015
5 / 5 (5) 0

Strange Martian Spirals Explained

Almost 40 years ago, NASA's Mariner 9 spacecraft relayed to Earth the first video images of Mars' northern polar ice cap, revealing a strange pattern of spiral swirls that has puzzled scientists ever since. ...

Jun 16, 2010
4.4 / 5 (12) 5 | with audio podcast

Why seas are rising ahead of predictions

Sea levels are rising faster than expected from global warming, and University of Colorado geologist Bill Hay has a good idea why. The last official IPCC report in 2007 projected a global sea level rise between ...

Nov 01, 2012
3.8 / 5 (20) 24