Search Results for: co2 downwelling

New York State is investigating Exxon for telling the truth about CO2 in 1976, but the big story is that NASA and NCAR have known since 1971 that CO2 is not dangerous – yet have lied to the public about … Continue reading →

I used RRTM LW (the model Trenberth uses) to calculate the effects of increasing CO2 on downwelling longwave radiation, due to the greenhouse effect. As you can see, the effect of increasing CO2 is minuscule. Even in the mid-latitude winter, going above 400 PPM has … Continue reading →

Contrary to all the BS being spewed by top climate scientists, their own models shows that CO2 has almost no impact on climate. The graph below shows the greenhouse effect during mid-latitude summer for three scenarios, calculated using RRTM – … Continue reading →

According to RRTM (the model used by NCAR) – if CO2 increases to 550 PPM in the tropics, the amount of downwelling longwave radiation would only increase by 0.6 watts/metre, or less than 0.2% In other words, man made CO2 … Continue reading →

Not much. RRTM shows that the tropics receive 398 watts/m² downwelling longwave radiation. If there was no CO2, that would only drop to 392 watts/m² In the tropics CO2 is only responsible for 1.5% of the greenhouse effect, and water … Continue reading →

I did an RRTM run with H2O mole fraction 0.00025 (approximating the Arctic) and got the following results. Removal of all CO2 decreases downwelling longwave radiation by 14%, and increasing CO2 by 10X increases downwelling longwave radiation by 7% So … Continue reading →

I took the radiate transfer model used by NCAR (RRTM) and ran it with tropical humidity (0.025 mole fraction H2O)  and three levels of CO2. Results are shown below. 0 ppm   392.3 w/m² 364 ppm   397.5 w/m² 3640 ppm   … Continue reading →

I did RRTM runs for 10,000 ppm H2O/330 ppm CO2, and then again with no CO2. Downwelling LW radiation dropped by less than 5% from 353 to 336 w/m^2. Increasing CO2 to 560 ppm increased the greenhouse effect by about … Continue reading →

Schmidt’s study found that water vapor is indeed the largest single contributor to natural global warming, responsible for about 50 percent of the greenhouse effect. Following water vapor are clouds, contributing about 25 percent, and next comes carbon dioxide with … Continue reading →

A closer look at the NASA paper referred to by the AOL article. Without the sustaining support by the non-condensing greenhouse gases, Earth’s greenhouse effect collapsed as water vapor quickly precipitated from the atmosphere, plunging the model Earth into an … Continue reading →