CO2 diffusion in polar ice: observations from naturally formed CO2 spikes in the Siple Dome (Antarctica) ice core

Jinho AHN, Melissa HEADLY, Martin WAHLEN, Edward J. BROOK, Paul A. MAYEWSKI, Kendrick C. TAYLOR ABSTRACT. One common assumption in interpreting ice-core CO2 records is that diffusion in the ice does not affect the concentration profile. However, this assumption remains untested because the extremely small CO2 diffusion coefficient in ice has not been accurately determined in the laboratory. In this study we take advantage of high levels of CO2 associated with refrozen layers in an ice core from Siple Dome, Antarctica, to study CO2 diffusion rates. We use noble gases (Xe /Ar and Kr /Ar), electrical conductivity and Ca2+ ion …

Terrestrial Temperature, Sea Levels and Ice Area Links with Solar Activity and Solar Orbital Motion

Valentina V. Zharkova1, Irina Vasilieva DOI: 10.4236/ns.2023.159018 Natural Science > Vol.15 No.9, September 2023 Abstract This paper explores the links between terrestrial temperature, sea levels and ice areas in both hemispheres with solar activity indices expressed through averaged sunspot numbers together with the summary curve of eigenvectors of the solar background magnetic field (SBMF) and with changes of Sun-Earth distances caused by solar inertial motion resulting from the gravitation of large planets in the solar system. Using the wavelet analysis of the GLB and HadCRUTS datasets two periods: 21.4 and 36 years in GLB, set and the period of about …

A New Look at Physico-Chemical Causes of Changing Climate: Is the Seasonal Variation in Seawater Temperature a Significant Factor in Establishing the Partial Pressure of Carbon Dioxide in the Earth’s Atmosphere?

Ivan R. Kennedy, John W. Runcie, Shuo Zhang and Raymond J. Ritchie Thermo 2022, 2, 401–434. https://doi.org/10.3390/thermo2040028 Abstract: Seasonal oscillations in the partial pressure of carbon dioxide (pCO2) in the Earth’s atmosphere, stronger in northern latitudes, are assumed to show that terrestrial photosynthesis exceeds respiration in summer, reducing the pCO2 in air but increasing its value in winter when respiration exceeds photosynthesis. We disagree, proposing that variation in the temperature of the surface mixing zone of seawater also reversibly regulates the pCO2 in air as a non-equilibrium process between air and seawater. We predict by thermal modelling that carbonate (CO32−) …

Rebuttal and corrections to Dr. Roy Spencer’s analysis and comments regarding the Pinatubo Study

Rebuttal and corrections to Dr. Roy Spencer’s analysis and comments regarding the Pinatubo Study

Bud Bromley & Tomer Tamarkin April 16, 2023 Dr. Roy Spencer is mistaken on all of the points in his review and posts concerning the ClimateCite-Bromley-Tamarkin-Menahem Pinatubo Study report and associated collateral materials. Our main Pinatubo study is not about the CO2 emissions from Pinatubo, as Tom Tamarkin has correctly instructed Roy numerous times over the course of the last year. . There was no reason or interest to attempt to quantify the CO2 emitted from Pinatubo. Others have estimated and reported that CO2 release. But more importantly, the perturbation to CO2 trend following the eruption which we studied was …

TITLE: ATMOSPHERIC CARBON DIOXIDE AND MARINE INTERACTION

EXECUTIVE SUMMARY This report studies causes which explain the recorded atmospheric annual CO2 flux variation of about 5 parts per million (ppm). The amount is part of an annual CO2 flow of about 28 ppm (221Gt) through the seasonal transfer of atmospheric CO2 between the southern and northern oceans. The flow is driven by changes in sea temperature which also controls the concentration of CO2 in the atmosphere as per Henry’s Law. Anthropogenic CO2 is up to 36Gt which adds 16% to the current natural flux. While this is a notable portion, there is no satellite evidence to suggest there …

Assessing ExxonMobil’s global warming projections

Geoffrey James Sasajima Supran Insider knowledge For decades, some members of the fossil fuel industry tried to convince the public that a causative link between fossil fuel use and climate warming could not be made because the models used to project warming were too uncertain. Supran et al. show that one of those fossil fuel companies, ExxonMobil, had their own internal models that projected warming trajectories consistent with those forecast by the independent academic and government models. What they understood about climate models thus contradicted what they led the public to believe. —HJS Abstract Climate projections by the fossil fuel …

The 60- & 88-year temperature oscillations are related to planetary and solar oscillations

Dr. Antero OIlila Dec. 19, 2022 The mechanism and even the existence of the Atlantic Multidecadal Oscillation (AMO) have remained under debate among climate researchers, and the same applies to general temperature oscillations of a 60-90-year period. The recently published study of Ollila and Timonen has found that these oscillations are real and they are related to 60- and 88-year periodicities originating from the planetary and solar activity oscillations. These oscillations can be observed in the Atlantic Multidecadal Oscillation (AMO), the Pacific Multidecadal Oscillation (PMO), and actually in the global surface temperature (GST). The similarities between the GST, AMO, PMO, …

Climate Insights 2020 Surveying American Public Opinion on Climate Change and the Environment

About the Project This report is the first in a series by researchers at Stanford University, Resources for the Future, and ReconMR examining American public opinion on issues related to climate change—beliefs about existence and threat, as well as public support for government action and specific policy preferences. Since 1997, Stanford University Professor Jon Krosnick has explored American public opinion on these issues through a series of rigorous national surveys of random samples of American adults, often in collaboration with RFF. For the 2020 iteration of the Climate Insights survey, 999 American adults were interviewed during the 80-day period from …

Outside the Black Box: Back to Basics

Dr. Ad Huijser, physicist and former CTO of Philips and director of the Philips Laboratories, describes himself as “amateur climatologist”. However his approach to climate physics is quite professional. Such as testified among else by his previous articles on his website: How does our CO2 escape? The underestimated role of clouds in global warming: an analysis of climate feedback effects in the AGW-hypothesis Pfff…, gelukkig nog maar ongeveer 0,6 °C te gaan ! in DUTCH And the present one: Outside the Black Box: Back to Basics. In my view his present study is killing the dominant role, attributed by many …