Real Climate

OCTOBER 1, 2022

Another clue is William Kininmonth’s ‘rethink’ on the greenhouse effect for The Global Warming Policy Foundation. When looking at the effect of changes in greenhouse gases, one must look at how their forcing corresponds to the energy balance at the top of the atmosphere. 679-688, 2016. 679-688, 2016. References.

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Greenhouse Radiation 2007 Atmosphere 284

Real Climate

JULY 10, 2022

Step 1: There is a natural greenhouse effect. This means that there is an upward surface flux of IR around (~398 W/m 2 ), while the outward flux at the top of the atmosphere (TOA) is roughly equivalent to the net solar radiation absorbed (~240 W/m 2 ). Step 2: Trace gases contribute to the natural greenhouse effect.

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Radiation 2022 Greenhouse Atmosphere 316

Real Climate

SEPTEMBER 19, 2021

So this is an attempt to put all of that in context and provide a hopefully comprehensive guide to how, when, and why to properly compare the two greenhouse gases. Before we go any further though, we need to understand that the effective perturbation time for CO 2 and CH 4 in the atmosphere are very different. Historical comparisons.

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Carbon Dioxide Radiation Atmosphere Greenhouse 354

Real Climate

NOVEMBER 11, 2023

A friend asked me if a discussion paper published on Statistics Norway’s website, ‘ To what extent are temperature levels changing due to greenhouse gas emissions? ’, was purposely timed for the next climate summit ( COP28 ). See for instance Benestad (2016). I don’t know the answer to his question.

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Sea Level Greenhouse Climate Change Atmosphere 293

Legal Planet

NOVEMBER 8, 2021

Methane is essential to control, since stabilizing climate requires reducing all anthropogenic greenhouse-gas emissions to net-zero. Atmospheric concentrations. That small concentration of methane in the atmosphere makes an outsized contribution to global heating. And more methane initiatives are surely on the way.

Atmosphere 147

Atmosphere Radiation Natural Gas Greenhouse 147

Real Climate

AUGUST 9, 2021

The radiative forcing bar chart has gone full circle: Almost every IPCC report has a version of the radiative bar chart showing the contributions over the historical period of all the different forcings (greenhouse gases, aerosols, solar, etc.). Oddly enough this is most reminiscent of the very first bar chart that appeared in Hansen et al.

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Sea Level 2012 Radiation Ocean 341

HumanNature

APRIL 10, 2023

Student in the Department of Atmospheric Science at Colorado State University Most people remember the water cycle they learned in school: water evaporates from lakes, rivers, and the ocean, air carrying this moisture rises, cools, condenses, and forms clouds, and these clouds precipitate water back down to the surface.

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Climate Change Paris Agreement Atmosphere Cooling 52