Scientists find human activity doesn't cause weather, carbon dioxide lags global temperature, 'changes in atmospheric CO2 don't track changes in human emissions,' Jan. 2013 peer reviewed study, Global & Planetary Change

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January 2013, "The phase relation between atmospheric carbon dioxide and global temperature," Global and Planetary Change, ScienceDirect.com

Ole Humlum^{a, b, ,} ,Kjell Stordahl^c, Jan-Erik Solheim<sup>d 

a</sup> Department of Geosciences, University of Oslo, P.O. Box 1047 Blindern, N-0316 Oslo, Norway^{, b} Department of Geology, University Centre in Svalbard (UNIS), P.O. Box 156, N-9171 Longyearbyen, Svalbard, Norway, ^c Telenor Norway, Finance, N-1331 Fornebu, Norway, ^d Department of Physics and Technology, University of Tromsø, N-9037 Tromsø, Norway

"Abstract

"Using data series on atmospheric carbon dioxide and global temperatures we investigate the phase relation (leads/lags) between these for the period January 1980 to December 2011. Ice cores show atmospheric CO₂ variations to lag behind atmospheric temperature changes on a century to millennium scale, but modern temperature is expected to lag changes in atmospheric CO₂, as the atmospheric temperature increase since about 1975 generally is assumed to be caused by the modern increase in CO₂.  

In our analysis we use eight well-known datasets: 1) globally averaged well-mixed marine boundary layer CO₂ data, 2) HadCRUT3 surface air temperature data, 3) GISS surface air temperature data, 4) NCDC surface air temperature data, 5) HadSST2 sea surface data, 6) UAH lower troposphere temperature data series, 7) CDIAC data on release of anthropogene CO₂, and 8) GWP data on volcanic eruptions. Annual cycles are present in all datasets except 7) and 8), and to remove the influence of these we analyze 12-month averaged data. We find a high degree of co-variation between all data series except 7) and 8), but with changes in CO₂ always lagging changes in temperature. The maximum positive correlation between CO₂ and temperature is found for CO₂ lagging 11–12 months in relation to global sea surface temperature, 9.5–10 months to global surface air temperature, and about 9 months to global lower troposphere temperature. The correlation between changes in ocean temperatures and atmospheric CO₂ is high, but do not explain all observed changes.

Highlights

► Changes in global atmospheric CO₂ are lagging 11–12 months behind changes in global sea surface temperature. ► Changes in global atmospheric CO₂ are lagging
 9.5–10 months behind changes in global air surface temperature. ► Changes in global atmospheric CO₂ are lagging about 9 months behind changes in global lower troposphere temperature. ► Changes in ocean temperatures explain a substantial part of the observed changes in atmospheric CO₂ since January 1980. ► Changes in atmospheric CO₂ are not tracking changes in human emissions." via Tom Nelson

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Ed. note: Translation: Man-caused global warming does not exist per latest peer reviewed study. It never has existed. The 2007 US Supreme Court 5-4 ruling is null and void. A multi-trillion dollar criminal industry is bankrupt. A generation of humanity has been wasted on the fraud of CO2 danger.

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