gfm7175
Mega MAGA
Circular definition fallacy. You cannot define a word with itself.Systemic change in the overall climate. Hope that clarifies it for you.
How is Earth increasing in temperature without any additional thermal energy?The sun. There is no "additional" energy.
HERE is how "global warming" is commonly preached, via cycling back and forth between "three sermons"... (credit goes to IBDaMann for summing up this preaching sequence so eloquently) ---Here's how global warming works:
2. greenhouse effect is the doctrine that provides the holy mechanism for earth's Global Warming (see point 1) which began during the Industrial Revolution, specifically upon the writing of the sacred Communist Manifesto text. Global Warming, as taught by the Church, is caused by miraculous greenhouse gases which are attributed to human activity (that all points back to conservatives) that have magical superpowers to defy physics, as follows:
- 2a. The force awakens within greenhouse gases, which begin creating additional energy out of nothing, in miraculous violation of the 1st law of thermodynamics. This miraculously-created thermal energy increases the earth's average global temperature in conjunction with the sun's constant output. The massive increase in human activity at the hands of GREEDY, fascist, socialist conservatives is the cause of the heavily accelerated increase in global temperatures that we must delude ourselves into seeing.
... when it is pointed out that point 2a is an egregious violation of thermodynamics, the preacher backpedals from 2a with the words "no one is claiming that energy is created out of nothing ..." and then seamlessly pivots to 2b, as such:
- 2b. greenhouse gases act as insulation, like a big, warm, cumfy wool blanket that cradles the earth in Global Warming. This cumfy blanket is totally transparent/non-existent to inbound solar energy, but then "traps" some of earth's "heat" by preventing earth's radiance (thermal radiation) from escaping into space. This causes a direct increase in the earth's average global temperature in conjunction with the sun's constant output.
... when it is pointed out that point 2b is an egregious violation of Stefan-Boltzmann, because radiance and temperature always move in the same direction, i.e. you can't have an increase in temperature with a decrease in radiance, the preacher backpedals from 2b with the words "no one is claiming that radiance is being decreased ..." and then seamlessly pivots to 2c, as such:
- 2c. The earth, in equilibrium, radiates thermally into space exactly what it absorbs, without creating any additional energy out of nothing, which is exactly what has been taught all along. The earth's thermal radiation, however, is simply absorbed by the greenhouse gases in the atmosphere, and half of that energy is re-radiated back down to earth, increasing the temperature of the surface, which therefore provides additional thermal radiation to the atmosphere which balances out the quantity of thermal radiation needed to escape into space and maintain equilibrium.
... when it is pointed out that point 2c is an egregious violation of the 2nd law of thermodynamics, because the much warmer lithosphere cannot be heated by the much cooler atmosphere, the preacher backpedals from 2c with the words "no one is claiming that the cooler atmosphere is somehow warming the earth ..." and then seamlessly pivots to 2a, as such:
- 2a. The force awakens within greenhouse gases, which begin creating additional energy out of nothing, in miraculous violation of the 1st law of thermodynamics. This miraculously-created thermal energy increases the earth's average global temperature in conjunction with the sun's constant output. The massive increase in human activity at the hands of GREEDY, fascist, socialist conservatives is the cause of the heavily accelerated increase in global temperatures that we must delude ourselves into seeing.
... and the cycle continues forever.
No, that doesn't make ANY sense at all. For starters, there's no such thing as "re-radiation" of IR photons... Photons, upon absorption, are completely and utterly DESTROYED. You seem to be preaching sermon 2c here, and NO, the COOLER atmosphere CANNOT heat the warmer surface, and NO, redistributing existing thermal energy does NOT increase Earth's temperature.The sun shines on the earth and fires primarily short-wave high energy photons at us. The earth absorbs those photons and "downconverts" them to lower energy, longer wavelength IR photons which radiate back out of the solid surface of the earth. Without any greenhouse gases the blackbody radiative temperature of the surface of the earth is something like 30degC LOWER than the current surface temperatures. Even if the globe were surrounded by an atmosphere of O2 and N2 without any greenhouse gases these gases lack a dipole moment to absorb IR photons, so even that atmosphere wouldn't allow the earth to be as warm as it is today.
Once those IR photons radiate back out of the surface they are absorbed by greenhouse gases like CO2 or CH4. These compounds have a dipole moment which allows them to absorb IR photons. Once absorbed the photons are re-radiated back out of the molecule and continue on their way up toward the top of the atmosphere. Only to run into greenhouse gas molecules over and over and over again. Ultimately the IR photon makes it back out to space so that the overall energy balance of the earth is net zero.
But the key is that the level at which the IR photons re-radiate back out into space gets higher and higher in the atmosphere the MORE CO2 you put in the atmosphere which pushes the re-radiation level out to more and more inefficient spaces (where there's fewer gas molecules). This temporarily creates a sort of "backlog" of IR in the atmosphere, keeping the surface warmer.
See? If you actually UNDERSTAND the science it makes sense.
Wrong again. BOY are you woefully misinformed!Stefan Boltzman is how you calculate the blackbody temperature of the earth, or the temperature of the earth's surface in the absence of any greenhouse gases.
You JUST argued that it did (see your sermon 2c above). But yes, this is the portion of the sermon in which you DENY 2c and pivot to 2a.That doesn't happen.
Already did.Now YOU try posting some science.