New AGU Presentation: ‘No Increase In Earth’s Surface Temperature From Increase In CO2’

Originally posted by laira ↑

Source: American Geophysical Union Fall Meeting

At next month’s American Geophysical Union (AGU) Fall Meeting in New Orleans (US), an independent researcher named Trevor Underwood will be presenting an equation-rich analysis that thoughtfully undermines the perspective that increases in CO2 concentrations are a fundamental variable affecting climate.

Instead, Underwood argues that the absorption band where CO2 emissivity could have an effect is likely already saturated, precluding the capacity of increased CO2 concentrations to produce atmospheric warming.
He also advances the position that solar irradiance changes can explain modern temperature variations, which is consistent with other recent analyses. http://notrickszone.com/2017/11/09/...o-solar-forcing-not-co2/#sthash.6QrOY1IE.dpbs

It seems that more and more of these papers questioning the “consensus” view on the efficacy of the CO2 within the greenhouse effect are being considered in scientific circles. Several previous examples are listed below.

The volume of contrarian analyses would seem to suggest that the climate’s specific sensitivity to CO2 concentration changes is not yet settled.

And so the debate rages on....

Another New Paper Dismantles The CO2 Greenhouse Effect ‘Thought Experiment’

• New Paper: CO2 Has ‘Negligible’ Influence On Earth’s Temperature

• 3 Chemists Conclude CO2 Greenhouse Effect Is ‘Unreal’, Violates Laws Of Physics, Thermodynamics

• Ph.D. Physicist Uses Empirical Data To Assert CO2 Greenhouse Theory A ‘Phantasm’ To Be ‘Neglected’

• Swiss Physicist Concludes IPCC Assumptions ‘Violate Reality’…CO2 A ‘Very Weak Greenhouse Gas’

• Recent CO2 Climate Sensitivity Estimates Continue Trending Towards Zero

• A Swelling Volume Of Scientific Papers Now Forecasting Global Cooling In The Coming Decades

• Russian Scientists Dismiss CO2 Forcing, Predict Decades Of Cooling, Connect Cosmic Ray Flux To Climate

• 2 New Papers: Models ‘Severely Flawed’, Temp Changes Largely Natural, CO2 Influence ‘Half’ Of IPCC Claims

• Leading Heat Transfer Physicists/Geologists Assert The Impact Of CO2 Emissions On Climate Is ‘Negligible’

• New Atmospheric Sciences Textbook: Climate Sensitivity Just 0.4°C For CO2 Doubling

• U of Canberra Expert: Doubling Atmospheric CO2 Would Increase ‘Heating By Less Than 0.01°C’

• Uncertainties, Errors In Radiative Forcing Estimates 10 – 100 Times Larger Than Entire Radiative Effect Of Increasing CO2

• New Paper Documents Imperceptible CO2 Influence On The Greenhouse Effect Since 1992

Expand

take another one for example
randomly from notrickszone's supposed "compelling volume of papers forecasting global cooling"

Heartbeat of the Sun from Principal Component Analysis and prediction of solar activity on a millenium timescale

V. V. Zharkova

, S. J. Shepherd

, E. Popova

& S. I. Zharkov

"solar activity will fall by 60 per cent during the 2030s to conditions last seen during the ‘mini ice age’ that began in 1645. …"

Which is all fine and dandy. Trouble is, other studies have shown that the solar cycle is not strong enough to offset greenhouse gas warming. At best, a declining solar cycle slows down the warming a bit.

So, this paper is a decent science paper. It provides some new analysis of the solar cycles. But the authors do not claim, as notrickszone claims, that this argues for global cooling. And other papers demonstrate that even with this forecast solar cycle cooling, warming continues.

notrickszone
one of the "trickiest" most misleading sites

A grand solar minimum would barely make a dent in human-caused global warming

https://skepticalscience.com/print.php?r=448
The impact of a future solar minimum on climate change projections in the Northern Hemisphere

http://iopscience.iop.org/article/10.1088/1748-9326/11/3/034015