Democracy Gone Astray

Democracy, being a human construct, needs to be thought of as directionality rather than an object. As such, to understand it requires not so much a description of existing structures and/or other related phenomena but a declaration of intentionality.
This blog aims at creating labeled lists of published infringements of such intentionality, of points in time where democracy strays from its intended directionality. In addition to outright infringements, this blog also collects important contemporary information and/or discussions that impact our socio-political landscape.

All the posts here were published in the electronic media – main-stream as well as fringe, and maintain links to the original texts.

[NOTE: Due to changes I haven't caught on time in the blogging software, all of the 'Original Article' links were nullified between September 11, 2012 and December 11, 2012. My apologies.]

Monday, December 23, 2013

West Antarctic Ice Loss Speeds Up

LONDON, 20 December – Ice is being lost over the West Antarctic ice sheet at a faster rate. The European Space Agency’s Cryosat – a satellite with a radar altimeter that can peer through the clouds and see in the dark – has confirmed that 150 cubic kilometres of ice are drifting into the Southern Ocean each year: a much faster rate than the calculation for 2010.

After observations between 2005 and 2010, gathered by 10 different satellite missions, Antarctic scientists and oceanographers calculated that the melting of ice from the West Antarctic peninsula was causing global sea levels to rise by 0.28mm a year. The latest survey suggests this rate is 15% higher.

The figures were revealed at the autumn meeting of the American Geophysical Union in San Francisco. Most of the ice loss comes from glaciers flowing into the Amundsen Sea.

“We find that ice thinning continues to be most pronounced along fast-flowing ice streams of this sector and their tributaries, with thinning rates of between four to eight metres per year near the grounding lines – where the ice streams lift up off the land and begin to float out over the ocean – of the Pine Island, Thwaites and Smith glaciers”, said Malcolm McMillan of the University of Leeds in the UK.

Wide-ranging view

The increase could be due to faster thinning – or it could be down to more accurate measurement, because Cryosat has more advanced instruments and circles the planet in a near-polar orbit, to cross territory no other observers could hope to see.

Cryosat will be followed by another series of European satellites, to be launched from 2014 onwards. Each of these Sentinels – that is their name – will have synthetic aperture radar instruments that will monitor a 250 kilometre-wide strip of the globe with each orbit.

They will work in pairs and not just keep an eye on polar ice but will cover Europe and Canada as well every one to three days, and watch, too, the main shipping routes, whatever the weather.

Original Article
Source: truthdig.com/
Author:  Tim Radford

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