Climate Change Science Fair Project; CO2 and Global Warming


To understand CO2’s contribution to climate change, one has to understand a few basics. The first is that CO2 is evenly distributed throughout the atmosphere up to 80 km. CO2 is 400 ppm at the surface, and CO2 is 400 ppm up 80 km, CO2 is 400 ppm at the equator and the poles. Water vapor, by far the most significant GHG, on the other hand, is not. H2O can be as high a 4 parts per hundred at the surface, and eventually precipitates out of the atmosphere by about 10 km. It is important to remember that the atmosphere thins with altitude, so 400 ppm up 80 km has far fewer CO2 molecules than 400 ppm at the surface.


As one can see from the altitude temperature graph, temperature decreases with altitude up to about 10 km, the same level at which H2O is no longer present. Temperatures then “invert” and warm with an increase in altitude due to incoming radiation creating ozone or O3.  The Temperature then begins to cool again with altitude through the thin mesosphere where CO2 starts to exhaust. Temperatures once again invert in the very thin thermosphere as incoming ionizing radiation warms the very thin air. The coldest part of the atmosphere is the mesosphere at about -90°C.


CO2’s only defined mechanism by which to affect climate change, is through thermalization, i.e. warming, of the 13 to 18µ (peak of 15µ) wavelengths of the LWIR spectrum. Once again, that is the only defined mechanism by which CO2 can affect climate change. Water vapor absorbs the same LWIR spectrum as CO2 and much much much more of the IR spectrum. H2O is by far the most significant GHG.

BBCThe “thermalization” of LWIR peak of 15µ results in a blackbody temperature of -80°C, or basically the floor temperature of the mesosphere. Note, thermalizing a gas to -80°C won’t warm anything on the surface, not even the poles.


From the cooling rate graphic, we can see how all these GHGs impact the atmosphere. CO2’s 13 to 18µ (peak of 15µ) wavelengths is the 600 to 700 wavenumber range, and spectrum colors represent slowing of cooling whereas dark gray represents actual warming. As one can see, H2O dominates the troposphere where all the glaciers exist and ground measurements are taken. Using ground-based thermometers identifies warming (actually slowing of cooling) due to H2O, not CO2. The 600 to 700 wavenumber range shows slowed cooling up to the tropopause and lower stratosphere.

That very small dot, up about 20 km is the only area CO2 warms, and that warming is dwarfed by the warming at that layer and above by ozone. CO2 then slows the cooling in the stratosphere due to the thermalization of CO2’s 13 to 18µ (peak of 15µ) wavelengths, but the lower stratosphere is -60°C. Whereas CO2 slows the cooling, it is immaterial to O3, which actually warms the atmosphere. This is evidenced by the fact that once the O3 effect isn’t involved, the temperatures once again collapse in the mesosphere. The CO2 does nothing to prevent the collapse of temperatures in the mesosphere except by putting in a temperature floor around -80°C. Once again, thermalizing a gas to -80°C isn’t going to warm anything on the surface, and it certainly won’t melt polar ice caps and glaciers.

From the above analysis, it is clear that CO2 is not a threat to mankind, and it certainly isn’t the cause of climate change. Water vapor and O3 clearly dominate the temperatures of the atmosphere, and what impact CO2 has is overlapped and exceeded by H20 and O3. In other words, CAGW is a fraud, and the real science proves it. Piss off your liberal teacher and use this as the foundation of a science fair project.

More Sources:

High School Climate Change Term Paper for Those Who Don’t Want to Follow the Herd
Climate Change Global Warming Homework to Piss Off Your Teacher

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