SCC Volume 2.3. The source of atmospheric CO2 variations is poorly understood. At Mauna Loa Hawaii, atmospheric CO2 has been recorded from 1959. This is a short period for a reliable variability signature identification. From the 19th century, atmospheric CO2…
SCC Volume 2.3. The question is: What fraction of the observed increase in atmospheric CO2 since 1750 is due to the burning of fossil fuels? Is it close to 1.0 as the IPCC and the climate policy makers would have…
SCC Volume 2.3. Unlike elsewhere on the globe, temperature in the tropics has increased systematically. From observed tropical temperature, numerical simulations have reproduced the observed evolution of atmospheric CO2, including its annual cycle. Much the same has followed empirically from…
SCC Volume 2.2. A new data set of annually averaged CO2 background levels directly measured from 1826 to 1960 is presented. It is based on a selection process of about 100,000 single samplesfrom more than 200,000 available near ground on…
SCC Volume 2.2. Observed ocean and land CO2 data show both seasonal and spatial variations, where latitude is the most important in addition to the increase in time. A simple, approximative corrective procedure is proposed which will be of use…
SCC Volume 2.2. The Intergovernmental Panel on Climate Change classifies the human influence on our climate as extremely likely to be the main reason of global warming over the last decades. Particularly anthropogenic emissions of carbon dioxide are made responsible…
The question is: What fraction of the observed increase in atmospheric CO2 since 1750 is due to the burning of fossil fuels? Is it close to 1.0 as the IPCC and the climate policy makers would have us believe by…
SCC Volume 2.1. The existence or non-existence of the so-called atmospheric greenhouse effect continuously dominates the extremely emotional discussion about a human impact on global warming. Most scientists agree with the fundamental greenhouse theory, but like their opponents they are…
SCC Volume 1.2 Classical mathematicians valued simplicity, settling such complex questions as the irrationality of √2 by elementary methods. Today, too, refractory problems in pure as well as applied math- ematics are resoluble by simple, Classical methods. For instance, though…
SCC Volume 1.2 A basic assumption of climate change made by the United Nations Intergovernmental Panel on Climate Change (IPCC) is natural CO2 stayed constant after 1750 and human CO2 dominated the CO2 increase. IPCC’s basic assumption requires human CO2…
SCC Volume 1.2 Unlike much of the Earth, surface temperature in the tropics underwent a systematic and sustained increase during the satellite era. Due to the temperature dependence of surface processes which regulate CO2 emission, that long-term change should exert…
SCC Volume 1.2 An in-depth analysis is performed on the record of atmospheric 14CO2, an isotopic tracer of CO2 that was perturbed by nuclear testing. In addition to long-term behavior, we examine short-term changes that have been largely ignored. It…
SCC Volume 1.1 The Holocene time-period on the geological time scale is defined as the period following the last glaciation, about 14,000 to 15,000 years ago, until the present (“Holocene”, after the Greek words: “halos”, entire, and “ceno”, new). Although…
SCC Volume 1.1 By Margarita Grabert, Philipp Lengsfeld, Adedamola Adedokun, Andreas Glassl and Fritz Vahrenholt. Abstract Based on the premises that there is a high rate of agreement among the scientific community concerning the key factors driving climate change, there…
SCC Volume 1.1 Solar activity and climate change are characterized by specific oscillations. The most relevant ones are known in the literature as the cycles of Bray±Hallstatt (2100±2500 year), Eddy (800±1200 year), Suess±de Vries (200±250 year), Jose (155±185 year), Gleissberg…
SCC Volume 1.1 A simple formula is suggested to policy makers to evaluate the impact of Earth’s temperature of fossil fuel emissions or reductions. It is illustrated for main emitters, country by country. Two lists of estimates are compared. One…