Dramatic evidence has been published in a number of recent science papers that carbon dioxide levels are already ‘saturated’, meaning little or no further warming is to be expected and rising CO₂ levels are all beneficial.

Half of human emissions are being quickly pushed back into the biosphere, the scientists say, causing substantial, famine-busting plant growth, while the rest is entering a ‘saturated’ atmosphere and having a minimal effect on global temperatures. One of the papers accepting the human involvement in rising CO₂is published by the CO₂ Coalition, which notes: “We like CO₂, so should you.”

None of this work will be reported in the mainstream since it disrupts a ‘settled’ climate science narrative tied to the political Net Zero fantasy. But the opinion that humans control the climate thermostat by releasing CO₂, leading to runaway temperatures, belongs to a dark period in science when it was captured to promote political aims. However, work continues in sceptical climate circles to understand how a number of gases with warming properties behave in a chaotic, non-linear atmosphere. Two recently-published papers found that doubling CO₂ in the atmosphere led to minimal temperature increases. The calculated figures can be considered to be in margin of error territory and on past observational evidence they pose no threat to the climate on Earth. They also destroy the shaky scientific foundation upon which Net Zero rests.

Eight Taiwanese scientists led by Professor Peng-Sheng Wei found that the sensitivity of the climate to a rise in CO₂ atmospheric levels from 100 to 400 parts per million (ppm) was “negligibly small” at 0.3°C. The paper is complex and examines heat transfers as a function of longitude, latitude and altitude “as well as diffuse radiation determined by absorption bands based on wavelength, temperature and the concentration or pressure of carbon dioxide vapour”. What the scientists are looking at here is the narrow absorption bands within the infrared (IR) spectrum that allow ‘greenhouse’ gases to trap heat and warm the planet. Many argue that after a certain level the gases ‘saturate’ and lose most of their warming properties. One simple way to understand this is to observe that doubling insulation in a loft will not trap twice as much heat. The saturation hypothesis would appear to explain how CO₂ has been 10-15 times higher in the past without runaway temperatures, while the anthropogenic warming opinion does little more than provide scientific cover for a dodgy but fashionable extreme eco scare.

The Intergovernmental Panel on Climate Change claims a climate sensitivity number based on doubling CO₂ levels of around 3°C. But many climate models ramp up mass public hysteria by using ‘pathways’ with much larger and highly improbably estimates. The latter form the basis of numerous ‘scientists say’ stories faithfully reported by unquestioning mainstream media. The Taiwanese scientists found that ground temperature warming of 0.3°C was associated with the increase from 100 ppm to 350 ppm and there was no additional warming at all as CO₂ rose further from 350 ppm to 400 ppm. The current level of CO₂ in the atmosphere is 420 ppm.

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