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For many years the wallpaper on my computer was a Martian sunset, taken by one of the rovers.
Uniformly over the whole countrysideThe warm air flows imperceptibly seaward;The autumn haze drifts in deep bandsOver the pale water;White egrets stand in the blue marshes;Tamalpais, Diablo, St. HelenaFloat in the air.Climbing on the cliffs of Hunter’s HillWe look out over fifty miles of sinuousInterpenetration of mountains and sea. Leading up a twisted chimney,Just as my eyes rise to the levelOf a small cave, two white owlsFly out, silent, close to my face.They hover, confused in the sunlight,And disappear into the recesses of the cliff. All day I have been watching a new climber,A young girl with ash blonde hairAnd gentle confident eyes.She climbs slowly, precisely,With unwasted grace. While I am coiling the ropes,Watching the spectacular sunset,She turns to me and says, quietly,“It must be very beautiful, the sunset,On Saturn, with the rings and all the moons.”
Fascinating what a change in atmosphere can do.
The color of Martian sky (pink) and sunsets (blue) has been known since 1976, at least, because the Viking Mars Lander took pictures demonstrating this back when Carter was in office.https://commons.wikimedia.org/wiki/File:Mars_Viking_12a240.png
Blue sunsets?? Get a clue...that means it is damn cold.
I think it is imperative to stop burning coal on Mars to reduce the CO2 level.
JosephVenus is the planet with runaway greenhouse effects, not Mars. Mars is cold with almost no atmosphere to speak of, though it is mostly CO2
The surface temperature on Mars is, however, increasing. In other words, Mars is experiencing global warming. Hence the joke.
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