Decline in atmospheric carbon dioxide key to ancient climate transition

University of Southampton:

A decline in atmospheric carbon dioxide (CO2) levels led to a fundamental shift in the behaviour of the Earth’s climate system around one million years ago, according to new research led by the University of Southampton.

A team of international scientists used new geochemical measurements, coupled with a model of the ‘Earth system’, to show that the growth and changing nature of continental ice sheets, approximately a million years ago, coincided with a cascade of events that ultimately lowered atmospheric CO2 during glacial intervals – periods when the Earth experienced extreme cold.

The researchers have shown this change was key in triggering what is known as the Mid-Pleistocene Transition (MPT), which lasted around 400,000 years. The MPT had long lasting effects on the frequency at which the Earth transitioned between periods of warm and cold climate, (the ‘ice age cycles’).

Findings of the study are published in the journal Proceedings of the National Academy of Sciences.

READ MORE

The end of the IPCC

There is still the US-EPA's drive to extend the Clean Air Act to include carbon dioxide and other greenhouse gases as "pollutants." But with the evidence of ClimateGate in hand, EPA's attempt to provide the necessary scientific justification for its "Endangerment Finding" will surely fail. Whoever leaked the incriminating e-mails deserves a medal for saving the US economy from certain ruin.

The writer, an atmospheric physicist, professor emeritus at the University of Virginia, and former director of the US Weather Satellite Service, is the organizer of NIPCC (Non-governmental International Panel on Climate Change) and coauthor of its reports "Nature, not human activity, rules the climate" [2008] and "Climate Change Reconsidered" [2009].

Read the whole thing!

Hungarian Physicist Dr. Ferenc Miskolczi proves CO2 emissions irrelevant in Earth’s Climate

Dr. Miskolczi first published his work in the Quarterly Journal of the Hungarian Meteorological Services in 2004, Volume 108, No 4. He published further statistical proof in the same Journal in 2007, Volume 111, No. 1. In the 5 years since he first published his results, not one peer review has come back disproving his theory, or his Constant. To date, not one scientist has come forward to disprove Miskolczi’s theory that the Earth’s climate is at equilibrium, and that Carbon Dioxide cannot be released in amounts great enough to upset that equilibrium.

Read the whole thing

No Rise of Atmospheric Carbon Dioxide Fraction in Past 160 Years, New Research Finds

Wolfgang Knorr of the Department of Earth Sciences at the University of Bristol reanalyzed available atmospheric carbon dioxide and emissions data since 1850 and considers the uncertainties in the data.

In contradiction to some recent studies, he finds that the airborne fraction of carbon dioxide has not increased either during the past 150 years or during the most recent five decades.

Read the whole thing