Müller: On the Residence Time of CO2 in the Atmosphere
The impression is gained that there is still no conclusive physical description of the global behavior of CO2 absorption/emission in the various reservoirs. There is a growing group that is convinced, the residence time of CO2 in the atmosphere is approximately 4 years. Another group assumes a significantly longer residence time of 30 years or…
Volume 5.4 October 2025
This is a special issue of Science of Climate Change which contains extended abstracts from the 6th Nordic Climate Conference which took place in Oslo – Gardermoen August 30-31, 2025. The conference was arranged by the Norwegian Climate Realists. The keynote speaker was Nobel Laureate John F. Clauser. The previous Nordic Conferences were held in…
Schrijver: Historical CO₂ Levels in Periods of Global Greening
The increased atmospheric CO₂ level is widely recognized as a primary driver of global greening (a 30% increase in GPP since 1900). It raises the question whether such an increased CO₂ level is also a necessary condition for a large GPP. This paper evaluates whether CO₂ levels during historical periods of similar or more greenness…
