Weather

Nearly 140 scientific papers detail the Effect of CO2 on Earth’s Temperature – Rise Thanks to That?


Via Kenneth Richard above 13. January 2022

From NoTricksZone

We have updated our list of scientific articles “Ultra-low CO2 Climate Sensitivity” with new articles added from 2021 and some new articles discovered in the past.

As of 2016, this list has only 50 articles on it (as indicated by the web address). In less than 6 years, this list has grown to 137 (to this day).

Click the link to see the full list.

A few of the sample papers are shown here.

Coe et al., 2021 (2XCO2 [400 to 800 ppm] = 0.5°C)

The HITRAN database of gaseous absorption spectroscopy allows to accurately determine the absorption of earth radiation at the current temperature of 288K for each individual atmospheric component and for the combined absorption of the gas. book in general. From this data, it is concluded that H2O is responsible for 29.4k out of 33k warming, with CO2 contributing 3.3k and CH4 and N2O combine just enough 0.3K. Climate sensitivity to a future increase in CO2 concentration is calculated as 0.50K, including positive feedback effects of H2O, while the climate sensitivities for CH4 and N2O were barely detectable at 0.06K and 0.08K, respectively. This result suggests that increasing CO2 levels will not lead to significant changes in earth’s temperature and that an increase in CH4 and N2O will have very little apparent impact.

Schildknecht, 2020 (2XCO2 = 0.5°C)

Based on new radiative transmittance estimates, we revisit an argument presented by Schack in 1972 stating that the saturation of the absorption of infrared radiation by atmospheric carbon dioxide sets as soon as the concentration The relative concentration of carbon dioxide exceeds the lower limit of approximately 300 ppm. We provide a concise and clear presentation of the greenhouse effect of the earth’s atmosphere. We find the equilibrium climate sensitivity (increase in temperature ∆T due to a doubling of atmospheric CO2 concentration) to be ∆T ≃ 0.5°C. We elaborate on the consistency of these results on T with those observed by satellite-based measurements of short-time radiant flux relative to changes in surface temperature. face. … Absorption reached a value close to 100% for an actual CO2 content of 0.03%, concluding that any further increase in CO2 (manmade) cannot lead to significantly stronger absorption of radiation, and therefore cannot affect the earth’s climate. … [T]The effect of anthropogenic increases in CO2 on the earth’s climate is quite negligible.

Easterbrook, 2016

CO2 makes up only a small part of the atmosphere (0.040%) and produces only 3.6% of the greenhouse effect. The content of CO2 in the atmosphere has only increased by 0.008% since emissions began to soar after 1945. Such a very small increase in CO2 cannot cause the 10°F increase in temperature that proponents of CO2. guess. The computer climate modelers incorporated into their models a high water vapor component, which they attributed to the increased water vapor in the atmosphere due to the very small warming from CO2 and because water vapor is produced. 90–95% greenhouse effect so they claim to be warming as a result. The problem is that atmospheric water vapor has actually decreased since 1948, not increasing as required by climate models. If CO2 causes global warming, then CO2 must always precede warming as Earth’s climate warms after the ice age. However, in all cases, CO2 slows down warming by ~800 years. Shorter timescales show the same thing — warming always before the increase in CO2 and therefore it cannot be cause of warming.

Davis, 2017

Correlation between RFHAVE2 and T has a linear trend across the Phanerozoic Eon that is positive and identifiable, but only 2.6% of the variance in T is attributed to the variance in ΔRFHAVE2. Among the 68 correlation coefficients (semi-parametric) between ΔRFHAVE2 and the T proxies included all known major Phanerozoic climate transitions, 75.0% were imperceptible and 41.2% of recognizable correlations were negative. Spectroscopic, automated and cross-correlation analysis reveals proxies for T, atmospheric CO2 concentration and RFHAVE2 oscillates through the Phanerozoic, and CO . cycle2 and RFHAVE2 is anti-language. Outstanding 15 million year CO2 The cycle closely coincides with the mass extinctions identified in the past, highlighting the urgent need for research into the relationship between CO2, biodiversity extinction and carbon-related policies. This study demonstrates that changes in atmospheric CO2 concentrations did not cause temperature changes in ancient climates.



Source link

news7d

News of max: Update the world's latest breaking news online of the day, breaking news, politics, society today, international mainstream news .Updated news 24/7: Entertainment, Sports...at the World everyday world. Hot news, images, video clips that are updated quickly and reliably

Related Articles

Leave a Reply

Your email address will not be published.

Back to top button