The Relationship between Atmospheric Carbon Dioxide Concentration and Global Temperature for the Last 425 Million Years

MDPI climate W. Jackson Davis Received: 8 August 2017 / Revised: 15 September 2017 / Accepted: 22 September 2017 / Published: 29 September 2017 Abstract Assessing human impacts on climate and biodiversity requires an understanding of the relationship between the concentration of carbon dioxide (CO2) in the Earth’s atmosphere and global temperature (T). Here I explore this relationship empirically using comprehensive, recently-compiled databases of stable-isotope proxies from the Phanerozoic Eon (~540 million years before the present) and through complementary modeling using the atmospheric absorption/transmittance code MODTRAN. Atmospheric CO2 concentration is correlated weakly but negatively with linearly-detrended T proxies over the …

180 YEARS OF ATMOSPHERIC CO2 GAS ANALYSIS BY CHEMICAL METHODS

by Ernst-Georg Beck Reprinted from ENERGY & ENVIRONMENT VOLUME 18 No. 2 2007 ABSTRACT More than 90,000 accurate chemical analyses of CO2 in air since 1812 are summarised. The historic chemical data reveal that changes in CO2 track changes in temperature, and therefore climate in contrast to the simple, monotonically increasing CO2 trend depicted in the post-1990 literature on climate-change. Since 1812, the CO2 concentration in northern hemispheric air has fluctuated exhibiting three high level maxima around 1825, 1857 and 1942 the latter showing more than 400 ppm. Between 1857 and 1958, the Pettenkofer process was the standard analytical method …

The potency of carbon dioxide (CO2) as a greenhouse gas

The potency of carbon dioxide (CO2) as a greenhouse gas

By Antero Ollila September 2014 Abstract According to this study the commonly applied radiative forcing (RF) value of 3.7 Wm-2 for CO2 concentration of 560 ppm includes water feedback. The same value without water feedback is 2.16 Wm-2 which is 41.6 % smaller. Spectral analyses show that the contribution of CO2 in the greenhouse (GH) phenomenon is about 11 % and water’s strength in the present climate in comparison to CO2 is 15.2. The author has analyzed the value of the climate sensitivity (CS) and the climate sensitivity parameter () using three different calculation bases. These methods include energy balance …

Press Release on Paper Showing the Invalidity of the EPA claim that CO2 is a pollutant

Press Release on Paper Showing the Invalidity of the EPA claim that CO2 is a pollutant

THS Research Files April, 2017 A just released peer reviewed Climate Science Research Report has proven that it is all but certain that EPA’s basic claim that CO2 is a pollutant is totally false. All research was done pro bono. This research failed to find that the steadily rising Atmospheric CO2 Concentrations have had a statistically significant impact on any of the 14 temperature data sets that were analyzed. The tropospheric and surface temperature data measurements that were analyzed were taken by many different entities using balloons, satellites, buoys and various land based techniques. Needless to say, if regardless of …

Invalidity of EPA’s CO2 Endangerment Finding

On the Existence of a “Tropical Hot Spot” & The Validity of EPA’s CO2Endangerment Finding Abridged Research Report Second Edition Dr. James P. Wallace III, Dr. John R. Christy, Dr. Joseph S. D’Aleo April 20, 2017 Excerpted summary of this peer-reviewed science: “The analysis results invalidate EPA’s CO2 Endangerment Finding, including the climate models that EPA has claimed can be relied upon for policy analysis purposes. Moreover, these research results clearly demonstrate that once the solar, volcanic and oceanic activity, that is, natural factor,impacts on temperature data are accounted for, there is no “record setting” warming to be concerned about.”

Univariate statistical analysis of environmental (compositional) data:Problems and possibilities

Peter Filzmoser, Karel Hron, Clemens Reimann Received 8 May 2009 Received in revised form 24 July 2009 Accepted 5 August 200 abstract For almost 30 years it has been known that compositional (closed) data have special geometrical properties.In environmental sciences, where the concentration of chemical elements in different sample materials isinvestigated, almost all datasets are compositional. In general, compositional data are parts of a whole whichonly give relative information. Data that sum up to a constant, e.g. 100wt.%, 1,000,000 mg/kg are the bestknown example. It is widely neglected that the “closure” characteristic remains even if only one of all possible …

Has global warming already arrived?

Has global warming already arrived?

Elsevier Journal of Atmospheric and Solar-Terrestrial Physics Volume 182, January 2019, Pages 31-38 C.A.Varotsos, M.N.Efstathiou https://doi.org/10.1016/j.jastp.2018.10.020 Highlights The global warming during 1978–2018 was not more enhanced at high latitudes near the surface. The intrinsic properties of the lower stratospheric temperature are not related to those in the troposphere. The results obtained do not reveal the global warming occurrence.