ScienceDaily: Top Environment News: NASA data reveals mega-canyon under Greenland ice sheet

Jay Owen Earth Systems Science

ScienceDaily: Top Environment News



NASA data reveals mega-canyon under Greenland ice sheet

Posted: 29 Aug 2013 11:16 AM PDT

Data from a NASA airborne science mission reveals evidence of a large and previously unknown canyon hidden under a mile of Greenland ice. The canyon has the characteristics of a winding river channel and is at least 460 miles (750 kilometers) long, making it longer than the Grand Canyon. In some places, it is as deep as 2,600 feet (800 meters), on scale with segments of the Grand Canyon. This immense feature is thought to predate the ice sheet that has covered Greenland for the last few million years.

On warming Antarctic Peninsula, moss and microbes reveal unprecedented ecological change

Posted: 29 Aug 2013 09:40 AM PDT

By carefully analyzing a 150-year-old moss bank on the Antarctic Peninsula, researchers describe an unprecedented rate of ecological change since the 1960s driven by warming temperatures.

‘Safe’ levels of environmental pollution may have long-term health consequences

Posted: 29 Aug 2013 08:28 AM PDT

If you’re eating better and exercising regularly, but still aren’t seeing improvements in your health, there might be a reason: Pollution. According to a new research report what you are eating and doing may not be the problem, but what’s in what you are eating could be the culprit.

Where can coral reefs relocate to escape the heat?

Posted: 29 Aug 2013 06:34 AM PDT

The best real estate for coral reefs over the coming decades will no longer be around the equator but in the sub-tropics, new research suggests.

Ozone depletion linked to extreme precipitation in austral summer

Posted: 29 Aug 2013 06:34 AM PDT

The new study showed that the ozone depletion over the South Pole has affected the extreme daily precipitation in the austral summer, for Dec., Jan., and Feb.