June 22, 2013
What is the Keeling Curve?
What does it look like now? See this graphic from the New York Times:
New York Times, May 11, 2013
See the daily update of the Keeling Curve at the Scripps Institute site, University of California at San Diego.
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Climate change, climate_change, CO2, Environmental protection, Global warming, History, Science | Tagged: Carbon dioxide in Earth's atmosphere, Charles David Keeling, Climate change, CO2, Environmental protection, Global warming, History, Keeling Curve, Science, Scripps Institution of Oceanography | 
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Posted by Ed Darrell
March 26, 2011
NOAA's Mauna Loa Observatory, from NOAA At the Ends of the Earth Collection, 1982 NOAA photo by Commander John Bortniak
John Adams observed, and Ronald Reagan was fond of quoting, “Facts are stubborn things . . .”
Here are the facts on atmospheric carbon dioxide (CO2):
Mauna Loa Observatory, Scripps Institution of Oceanography, UCSD (University of Calfornia-San Diego); CO2 concentrations in parts per million (ppm)
As described at the Scripps Institution of Oceanography site:
Description:
Monthly average atmospheric carbon dioxide concentration versus time at Mauna Loa Observatory, Hawaii (20°N, 156°W) where CO2 concentration is in parts per million in the mole fraction (p.p.m.). The curve is a fit to the data based on a stiff spline plus a 4 harmonic fit to the seasonal cycle with a linear gain factor.
Data from Scripps CO2 Program.
For perspective, here’s a chart from Scripps that shows why there is concern over current levels of CO2:
CO2 over the past 420,000 years - Scripps Institution of Oceanography
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3 Comments | Accuracy, air pollution, Cost of Green, Global warming, Green Politics, History, History of Science, Industrial Revolution, Politics, Research, Science | Tagged: air pollution, Carbon Dioxide, Climate change, CO2, Cost of Green, Global warming, Green Politics, History, Industrial Revolution, Mauna Loa Observatory, Politics, Research, Science, Scripps Institution of Oceanography, UCSD | Permalink
Posted by Ed Darrell
