A newly published study concludes that, given the lush vegetation ten thousand years ago, the CO2 content in the atmosphere must have been significantly higher than the ice cores suggest. The level at that time must therefore have been in the same range as today.
Source: Report24.news, Heinz Steiner, 16 November
The modern climate discourse is reduced to a simple narrative: Human CO2 emissions as the sole driver of global change. However, a recent study entitled “Historical CO2 Levels in periods of global Greening” by Frans J. Schrijver, published by SCC, rigorously overturns this wishful thinking. Even 10,000 years ago, at the beginning of the Holocene, the Earth was apparently much greener than we experience it today – with more than 50 per cent more forest cover. It is therefore hardly possible that CO2 at that time was at the level of 280 ppm suggested by ice cores.
The analysis clearly shows that in order to achieve such green growth, CO2 levels at least equivalent to the current level of 420 ppm were required. In other words: Nature would not have been able to produce the vegetation density that it obviously achieved back then at the supposedly “low” CO2 concentrations. The researcher bases this on the proven Mitscherlich law, which describes the relationship between CO2 fertilisation, water and nutrient availability and the diminishing effect of CO2. High CO2 levels were therefore a physical necessity for the observed growth, not some modern invention.
It gets even more exciting when you look at natural CO2 emissions: The study illustrates that the Earth itself has quadrupled its CO2 release since 1750 – from 166 to 210 gigatonnes of carbon per year – while the human contribution has remained comparatively tiny, from 0 to 11 gigatonnes This means that the main drivers of the CO2 increases have been natural sources, not our industrial plants, coal-fired power stations or combustion engines. The global CO2 sinks do not differentiate between “natural” and “anthropogenic” CO2 anyway. The Earth has always been a dynamic CO2 system in which humans only make up a tiny fraction.
What we see here is more than a small statistical clue: it is a systematic blow to the narrative framework of the climate alarmists. Their central message – low historical CO2 levels, dramatic increase due to humans – turns out to be a construction that holds up neither physically nor biologically. The earth was green, CO2 levels were high and humans had virtually no influence.
