Carbon Dioxide Levels Just Hit Their Highest Point In 800,000 Years
The concentration of carbon dioxide, the greenhouse gas that drives climate change, hit 402 parts per million this week — the highest level recorded in at least 800,000 years.
The recordings came from the National Oceanic and Atmospheric Association’s Mauna Loa Observatory in Hawaii, which marked another ominous milestone last May when the 400 ppm threshold was crossed for the first time in recorded history.
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Carbon dioxide (CO2) levels spike every spring but this year the threshold was crossed in March, two months earlier than last year. In fact, it’s happening “at faster rates virtually every decade,” according to James Butler, Director of NOAA’s Global Monitoring Division, a trend that “is consistent with rising fossil fuel emissions.”
400 ppm was long considered a very serious measurement but it isn’t the end — it’s just a marker on the road to ever-increasing carbon pollution levels, Butler explained in an interview on NOAA’s website. “It is a milestone, marking the fact that humans have caused carbon dioxide concentrations to rise 120 ppm since pre-industrial times, with over 90 percent of that in the past century alone. We don’t know where the tipping points are.”
http://thinkprogress.org/climate/2014/04/09/3424704/carbon-dioxide-highest-level/
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When are we going to wake up ....????.
