NASA lost contact with the instrument exploring the Mars, because it was covered with a thick layer of solid carbon dioxide.
In the atmosphere, carbon dioxide is the easiest to covert into solid form. We can do it in the laboratory also. It looks like ice then. So it is called dry ice.
I was told about a theory that our atmosphere too was full of carbon dioxide. As and when life forms like anaeroid bacteria ( which can live without oxygen) evolved, they produced the first molecules of oxygen. I have commented about the slight increase in percentage of oxygen, from 20% to 21%, during the last fifty years.
This clearly proves that carbon dioxide has no role in warming the atmosphere, which is just crying wolf to terrorise us!
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