climate-changing

americangeophysicalunion:

Fiber-optic cables like the ones that bring television and Internet into millions of homes are now being used to measure how fast ice shelves in Antarctica are melting, according to new research. 

Researchers installed moorings containing fiber-optic cables hundreds of meters down into the McMurdo Ice Shelf in West Antarctica to collect temperature information about the base of the ice shelf, where the thick platform of floating ice meets the ocean. The sensors were able to measure mere millimeters of ice loss at the interface, demonstrating that the new fiber-optic method could be used to remotely monitor the ice shelves in real-time. 

Data on the melting rates of ice shelves provides scientists with critical information on the stability of the Antarctic ice sheets and sea level rise.

GeoSpace spoke with Scott Tyler, a hydrologist at the University of Nevada, Reno and the study’s principal investigator, about the new research that has been accepted for publication in Geophysical Research Letters, a journal of the American Geophysical Union.

Click here to read the Q & A.

Two oil companies planning to drill in remote Arctic waters, Shell and ConocoPhillips, are pleading with U.S. regulators not to make them follow new guidelines proposed by the Interior Department that would require the companies to keep emergency spill response equipment close at hand and prohibit the use of chemical dispersants.
Among the more than 310,000 demonstrators marching through Manhattan in last week’s People’s Climate March were contingents of physicians. Now The Journal of the American Medical Association, the voice of the nation’s powerful medical establishment, has issued a call to arms to doctors, urging those in health-related fields to throw their weight behind climate change prevention efforts.