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Can Infrared Radiation Warm the Atmosphere???

Discussion in 'Science & Technology' started by palerider, Jan 21, 2018.

  1. Lagboltz

    Lagboltz Well-Known Member

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    Nope. You said:
     
  2. palerider

    palerider Well-Known Member

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    And in your mind that looks like a blank space...if you want to see light waves cancelling out, you can see it happening on a soap bubble...imagine that...it actually happens in the real world.
     
  3. The Scotsman

    The Scotsman Well-Known Member

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    I think the issue here is that not even the scientists can definitively explain what effect CO2 has in terms of "global warming". Radiative forcing is a massively complex issue and to say that this gas or that cloud or that ocean current or this time of day or night does this or does that is just not possible based on where they are with understanding all the feedback mechanisms etc etc etc. You are right there is a lot of data cherry picked and quoted and and and. The issue is that there is no one data set or analytic tool or computer model that can bring all the data together because science still does not know what data to bring to the table and what to do with it once its there....I'm not even sure we have the computational power to attempt it yet.

    It really is still the wild west in terms of this whole cliamte debate and the issue is that more and more people are understanding less and less as the complexities become apparent. So if someone comes and tells you that thay have the answer then maybe best to adopt the attitude of de omnibus dubitandum...personally I think all that one can say with any degree of accuracy is that climate changes....why and how....who the fuck really knows...god maybe?
     
  4. PLC1

    PLC1 Moderator Staff Member

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    Carbon dioxide traps the outgoing long wave radiation. Without it, the Earth would be frozen because more radiation would be returned to space. That's just basic junior high school level physics.

    well, maybe high school.

    But, it 's pretty basic stuff.

    Here's a more in depth analysis:
     
  5. The Scotsman

    The Scotsman Well-Known Member

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    Good news now start to factor that one teensy factoid into the whole picture bearing in mind it also emits long wave radiation...
     
  6. PLC1

    PLC1 Moderator Staff Member

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    Hardly a "factoid." That CO2 blocks outgoing long wave radiation is what keeps the planet from being an ice ball. Without it, in fact, life as we know it could not exist at all. Carbon Dioxide and water are two very important compounds. Too much or too little, and we start to have serious problems.
     
  7. Lagboltz

    Lagboltz Well-Known Member

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    A complete explanation of how CO2 affects the atmosphere is given in
    https://history.aip.org/history/climate/simple.htm#L_0141

    Start with the paragraph that begins with "What happens to infrared radiation emitted by the Earth's surface?"
    That explanation is not meant to describe the entire complexity of the atmosphere, but it does tell how CO2 radiation works it's way up the atmosphere, and the ramifications at the top of the atmosphere where the IR radiation is is dissipated to space. Although the link is titled as a simple explanation, it does require a good attention span and reading for comprehension.
     
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