Author Topic: How Near-Saturation of CO2 Limits Future Global Warming  (Read 192 times)

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How Near-Saturation of CO2 Limits Future Global Warming
« on: April 08, 2021, 05:46:43 pm »

How Near-Saturation of CO2 Limits Future Global Warming
April 05, 2021

The climate change narrative is based in part on the concept that adding more and more CO2 to the atmosphere will cause the planet to become unbearably hot. But recent research refutes this notion by concluding that extra CO2 quickly becomes less effective in raising global temperatures – a saturation effect, long disputed by believers in the narrative.

First reported in 2020, the new and highly detailed research is described in a preprint by physicists William Happer and William van Wijngaarden. Happer is an emeritus professor at Princeton University and prominent in optical and radiation physics. In their paper, the two authors examine the radiative forcings – disturbances that alter the earth’s climate – of the five most abundant greenhouse gases, including CO2 and water vapor.

The researchers find that the current levels of atmospheric CO2 and water vapor are close to saturation. Saturation is a technical term meaning that the greenhouse effect has already had its maximum impact and further increases in concentration will cause little additional warming. For CO2, doubling its concentration from its 2015 level of 400 ppm (parts per million) to 800 ppm will increase its radiative forcing by just 1%. This increase in forcing will decrease the cooling radiation emitted to space by about 3 watts per square meter, out of a total of about 300 watts per square meter currently radiated to space.

https://www.scienceunderattack.com/