The phase relations among atmospheric CO2 content, temperature and global ice volume over the past 420 ka

Quaternary Science Reviews 20 (2001) 583}589 Manfred Mudelsee Institute of Meteorology, University of Leipzig, Stephanstr. 3, D-04103 Leipzig, Germany Abstract The phase relations (leads/lags) among atmospheric CO2 content, temperature and global ice volume are key to understanding the causes of glacial-interglacial (G-IG) climate transitions. Comparing the CO2​ record with other proxy variables from the Vostok ice core and stacked marine …

Climate Impact of Increasing Atmospheric Carbon Dioxide

Science 28 August 1981, Volume 213, Number 4511 J. Hansen, D. Johnson, A. Lacis, S. Lebedeff, P. Lee, D. Rind, G. Russell Summary. The global temperature rose by 0.20C between the middle 1960’s and 1980, yielding a warming of 0.4°C in the past century. This temperature increase is consistent with the calculated greenhouse effect due to measured increases of atmospheric …

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 …

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. …

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 % …

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 …

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 …

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.