ACROSS THE CLIMATE CHANGE RUBICON
World passes critical global warming milestone
Michael Casey, May 6, 2015 (CBS News)
“The world has passed a worrying milestone, with concentrations of greenhouse gases reaching levels not seen for millions of years…[According to the National Oceanic and Atmospheric Administration (NOAA),] global concentrations of heat-trapping greenhouse gases in March passed 400 parts per million…The landmark has long been expected, given that nations led by the United States, China and India continue to pump huge quantities of carbon dioxide emissions into the atmosphere. But the fact it has now been reached could provide additional urgency to reaching a global pact to cap emissions when world leaders meet in Paris on the issue later this year…[T]he latest NOAA data shows the recent years have been among the worst. The average growth rate of carbon dioxide concentration in the atmosphere from 2012 to 2014 was 2.25 ppm per year, the highest ever recorded over a period of three consecutive years…” click here for more
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