If we added some Argon into Earth's atmosphere—purely as a thought experiment….
Say between 1 and 2 PSI...
Would the net effect be warming or cooling to the Earth's climate?
I remember reading a very old experiment—early 60's—trying to determine if plant life could survive on Mars. Back then they believed that there was—or might be—a fair amount of Argon in the Martian atmosphere. They discovered that plants can tolerate killing frost's much better when there is some Argon in the atmosphere—God knows why.
Since then, when phantasizing about building worlds to order, I always like to imagine about 1.5 PSI of Argon in the atmosphere,
Then I got to wondering—would the Argontend to reflect sunlight and cause my hypothetical world to freeze?
PS: I browsed that article ONCE back in the early 70's. Please don't ask for a reference. Wish that I knew.
Edited by SaxonViolence, 22 April 2019 - 03:35 PM.