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marmar

(77,080 posts)
Mon Nov 11, 2013, 09:24 AM Nov 2013

Capitalism and the Destruction of Life on Earth: Six Theses on Saving the Humans


Capitalism and the Destruction of Life on Earth: Six Theses on Saving the Humans

Sunday, 10 November 2013 00:00
By Richard Smith, Truthout | Opinion


When, on May 10, 2013, scientists at Mauna Loa Observatory on the big island of Hawaii announced that global CO2 emissions had crossed a threshold at 400 parts per million for the first time in millions of years, a sense of dread spread around the world - not only among climate scientists.

CO2 emissions have been relentlessly climbing since Charles David Keeling first set up his tracking station near the summit of Mauna Loa Observatory in 1958 to monitor average daily global CO2 levels. At that time, CO2 concentrations registered 315ppm. CO2 emissions and atmospheric concentrations have been climbing ever since and, as the records show, temperatures rises will follow. For all the climate summits, the promises of "voluntary restraint," the carbon trading and carbon taxes, the growth of CO2 emissions and atmospheric concentrations has not just been relentless, it has been accelerating in what scientists have dubbed the “Keeling Curve."

In the early 1960s, CO2ppm concentrations in the atmosphere grew by 0.7ppm per year. In recent decades, especially as China has industrialized, the growth rate has tripled to 2.1ppm per year. In just the first 17 weeks of 2013, CO2 levels jumped by 2.74ppm compared to last year -- "the biggest increase since benchmark monitoring stations high on the Hawaiian volcano of Mauna Loa began taking measurements in 1958."[1] Carbon concentrations have not been this high since the Pliocene period, between 3 million and 5 million years ago, when global average temperatures were 3 degrees or 4 degrees Centigrade hotter than today, the Arctic was ice-free, sea levels were about 40 meters higher, jungles covered northern Canada and Florida was under water - along with coastal locations we now call New York City, London, Shanghai, Hong Kong, Sydney and many others.

Crossing this threshold has fueled fears that we are fast approaching "tipping points" - melting of the subarctic tundra or thawing and releasing the vast quantities of methane in the Arctic sea bottom - that will accelerate global warming beyond any human capacity to stop it: "I wish it weren't true, but it looks like the world is going to blow through the 400-ppm level without losing a beat," said Scripps Institute geochemist Ralph Keeling, whose father, Charles, set up the first monitoring stations in 1958: "At this pace, we'll hit 450 ppm within a few decades." .........................(more)

The complete piece is at: http://www.truth-out.org/opinion/item/19872-capitalism-and-the-destruction-of-life-on-earth-six-theses-on-saving-the-humans



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