konradv,
Theoretically CO2 has been proven to absorb IR radiation. In point of fact however they have never been able to generate a heating of a controlled atmosphere because of it. Do you understand the difference?
Even with all of the parameters controlled and with the scientists able to play with all of the variables to their hearts content...they STILL havn't been abe to scientifically prove the theory. They have been trying for 100 years and still no joy. In real science that means the theory is a failure. Time to move on.
I can't make it any more simple than that buddy.
That's total bullshit, walleyed. Do you get your science info from comic books?
This is a list of papers on laboratory measurements of the absorption properties of carbon dioxide.
Great, now show the class where the temperature was raised by CO2 in an enclosed box.
I would not be at all surprised to learn that you live in an enclosed box all the time (it would explain a lot) but most of us live on the surface of a planet with a big atmosphere filling the sky overhead and out to all sides. That fact makes your question, in light of the papers I showed you, very silly and rather pointless for reasons of physics that are probably beyond you. Those papers I cited are very relevant to the warming effect that CO2 has on our atmosphere but, like a good little brainwashed denier cult troll, you want an enclosed box. LOL. So I'll deal with your question as is. I'm not sure why you are denying the existence of this experiment as it has been performed tens of thousands of times. Is this fallacious belief that the experiment has never happened like some sort of religious dogma of your cult or something? It is a standard experiment in many high school and college physics classes. I googled up lots of sites like this in a half a second so if you don't like this one, try another one. Since you have such dogma inspired doubts about this experiment, I thought it would be nice to give you the chance to perform it yourself just so you can be sure. LOL
Simple experiment showing that more CO2 in an atmospheric mix absorbs more energy from light and heats the air. I hope you can stand the shock of watching one of your cherished myths get blown away like a house of cards in a hurricane. LOL.
This is a standard educational website, done, I think, by the Virginia K-12 educational system,
here.
It is a cached HTML version of a
PDF document. Here is the lab part, which starts about a third of the way down the page.
EXPLORATIONS IN EARTH & ENVIRONMENTAL SCIENCES 195
GREENHOUSE EFFECT—LAB ACTIVITY
Materials and Equipment Required
• Xplorer GLX • beaker, 500-mL
• PASPORT Temperature Probe
• 1/8” vinyl tubing (0.5 m)
• PASPORT CO2 Sensor • Erlenmeyer flask, 125-mL
• Small Tripod Base & Rod • 1-hole stopper (for flask)
• Three Finger Clamp • foam insulating lid
• black construction paper
• dry ice (50 g)
• clamp or clothes pin
• insulated mitt
• 150-W incandescent light source
• protective gear
• plastic tubing connector nib (2)
Safety Notes Wear protective gear at all times (gloves, goggles, etc.).
Avoid contact of dry ice with skin and eyes. Handle the dry ice with an insulated mitt. Dry ice can burn your skin.
Pre-Lab
Question
Which test situation will cause heat from the lamp to be retained longer—with air only or with air plus added CO2?
Procedure GLX Setup
1. Plug the PASPORT Temperature Probe and the PASPORT CO2 Sensor into the Xplorer GLX.
2. Use the arrow keys ( ) to highlight the Flash folder, select the Flash folder (press ), use the arrow keys to highlight the file, and then open (press F1) the GLX configuration file entitled
15 Greenhouse Effect CF
3. Open the Table display (press , F1).
Note: The file has been configured to collect data once every second.
196 EXPLORATIONS IN EARTH & ENVIRONMENTAL SCIENCES
GREENHOUSE EFFECT—LAB ACTIVITY
Procedure,
continued
Equipment Setup
CO2 Sensor
Temperature
Probe
plastic tubing
connector nib
foam insulating lid
beaker with
black construction paper
tubing
Air Without Added Carbon Dioxide Gas
1. Cut a piece of black construction paper so it fits in the 1-L
beaker.
2. Place the foam insulating lid on the top of the beaker.
3. Cut a hole in the top of the lid so the CO2 Sensor makes a snug fit.
4. Press the Temperature Probe through the lid, creating another hole.
5. Create a third hole in the foam insulating lid for the plastic tubing connector nib.
6. Support the GLX with the Three Finger Clamp on the rod stand to maintain the proper positioning of the GLX above the setup.
7. Using a ruler, place the light source 6 inches from the beaker.
Record Data
1. Turn on the light, wait for 30 seconds, and press the Start/Stop
( ) key to begin recording data.
2. Collect data for 5 minutes. Turn off the light. Continue recording data for 20 minutes. Press the Start/Stop key to stop recording data.
EXPLORATIONS IN EARTH & ENVIRONMENTAL SCIENCES 197
GREENHOUSE EFFECT—LAB ACTIVITY
Procedure,
continued
Air With Added Carbon Dioxide Gas
Equipment Setup
1. Carefully take the rubber stopper out of the Erlenmeyer flask, put several pieces of dry ice into the flask, and put the stopper back into the flask.
Important: Use the insulated mitt to handle the dry ice. Important: Do not move or bump the rest of the equipment setup.
Record Data
1. Turn on the light, wait for 30 seconds, and press the Start/Stop
( ) key to begin recording data.
2. When the carbon dioxide concentration levels off, put the clamp on the tubing to prevent any further addition of CO2. Note: The purpose of this step is to isolate the beaker from the cold flask.
3. Collect data for 5 minutes. Turn off the light. Continue recording data for 20 minutes. Press the Start/Stop key to stop recording data.
Note: You can rename your runs to reflect the test situation using the following process:
1. Press the select key, use the arrow keys to navigate to the Run label, and select it.
2. On the Run menu, use the down-arrow key to navigate to Rename Run, and select it. Key in the appropriate label, such as with added CO2, and press the OK key (F1).
3. To rename the next data run, select the Run label and select the next run you want to rename. Repeat the renaming process.
4. Follow your teacherÂ’s directions for cleaning up your work space.
Analyze
1. Open the Graph display (press , F1).
Result: The Graph display opens displaying Temperature for 2
runs.
2. Press the select key ( ), use the arrow keys ( ) to highlight the first Run #, select it ( ), use the down arrow to highlight the run for the air-only test situation, and select it.
198 EXPLORATIONS IN EARTH & ENVIRONMENTAL SCIENCES
GREENHOUSE EFFECT—LAB ACTIVITY
Procedure,
continued
Repeat for the second Run #, and select the run for the air plus
CO2 test situation.
Result: The Temperature vs. Time graphs for your 2 runs of data will be displayed.
3. Make a sketch of the graphed data and label your graph.
4. Press the select key ( ), use the arrow keys ( ) to highlight the Temperature on the x axis, select it, use the arrow key to highlight CO2 Concentration, and select it. Result: The CO2 Concentration vs. Time graphs for your 2 runs of data will be displayed.
5. Make a sketch of the graphed data and label your graph.
6. Save your GLX file (press , select Data Files, press F2).
Result: Your GLX file will be saved in the RAM folder.
Note: Your teacher may ask you to rename your file so you can find it later. If so, use the following procedure:
1. Select the Files menu (press F4) and select Rename.
2. Key in the new name, and press the Save key (F2).
Analysis/ Synthesis Questions
Nowhere in any of these studies was that accomplished. You keep dancing around the basic problem...now answer the problem. I can show you IR absorbtion properties of several rocks and mineral types as well but they don't make the temperature rise either.
So you're wrong again, CO2 does indeed "make the temperature rise".