Paper finds man-made CO2 only stays in atmosphere for 5.4 years, far less than assumed by UN IPCC and climate models-Symposium on Thermophysical Properties, 2009

8/9/13, "Paper finds lifetime of CO2 in atmosphere is only 5.4 years," The Hockey Schtick

"A paper presented at the SEVENTEENTH SYMPOSIUM ON THERMOPHYSICAL PROPERTIES [June 2009] finds that the lifetime and residence time of man-made CO2 in the atmosphere are only about 5.4 years, far less than assumed by the IPCC. The paper corroborates prior work by Salby, Humlum et al, Frölicher et al, Cho et al, Calder et al, Francey etl, Ahlbeck, Pettersson, Segalstad, and others which has demonstrated that man-made CO2 is not the primary driver of atmospheric CO2."

"Fossil Fuel Emissions and Fossil CO2 in the Atmosphere"

Luciano Lepori S, Gian Carlo Bussolino, Andrea Spanedda and Enrico Matteoli C IPCF-CNR, Pisa, Italy

"The comparison of fossil fuel emissions (6.4 GtC/yr) with the growth rate of atmospheric CO2 (3.2 GtC/yr) suggests that about half of the anthropogenic CO2 has not remained in the atmosphere: it has dissolved in the ocean or has been taken up by the land. The isotope ratio C13/C12 of atmospheric CO2 has been measured over the last decades using mass spectrometry. From these data the fraction of fossil CO2 in atmospheric CO2 is straightforwardly calculated: 5.9 %(1981) and 8.5 %(2002). These results indicate that the amount of past fossil fuel and biogenic CO2 remaining in the atmosphere, though increasing with anthropogenic emissions, did not exceed in 2002 66 GtC, corresponding to a concentration of 31 ppm, that is 3 times less than the CO2 increase (88 ppm, 24 %) which occurred in the last century. This low concentration (31 ppm) of anthropogenic CO2 in the atmosphere is consistent with a lifetime of t(1/2) = 5.4 years, that is the most reliable value among other in the range 2-13 years, obtained with different measurements and methods. Contrary to the above findings on the concentration of fossil CO2 and its residence time in the atmosphere, in the Fourth Assessment Report of the Intergovernmental Panel on Climate Change it is stated that almost 45% of anthropogenic emissions, corresponding to 88 ppm or 24 % of the total CO2, have remained in the atmosphere with a mean lifetime of t(1/2) = 30.5 years. On these assumptions are based both the theory of Anthropogenic Global Warming and the climate models."

H/T to The Stockholm Initiative site for finding this abstract [Google translation from Swedish]:"  via Junk Science

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June 21-26, 2009, "SEVENTEENTH SYMPOSIUM ON THERMOPHYSICAL PROPERTIES"

Boulder, CO, USA.Organized By:

• National Institute of Standards and Technology
• Joint ASME-AIChE Committee on Thermophysical Properties
  • American Society of Mechanical Engineers
  • American Institute of Chemical Engineers

"Keynote Speaker

Dr. Susan Solomon
Senior Scientist NOAA
 

"A World of Change: Climate Yesterday, Today, and Tomorrow"
Powerpoint slides from Dr. Solomon's talk.

For information on Dr. Solomon please visit NOAA Celebrates 200 Years or The 2008 Time 100"

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"Related: New paper finds ocean along Baja California coast is a net source of CO2 to the atmosphere"

"The paper joins at least 3 other peer-reviewed publications based on careful in-situ ocean measurements finding the oceans may act as a source rather than a sink for CO2, calling into question the belief that man is entirely responsible for the increase of CO2 levels. Prior work by Salby, Humlum et al, Frölicher et al, Cho et al, Calder et al, Francey et al, Ahlbeck, Pettersson, and others have demonstrated that man-made CO2 is not the driver of atmospheric CO2.

Air-sea CO2 fluxes in the near-shore and intertidal zones influenced by the California Current"...
 

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