This looks to be from NPR. Anyone see any propaganda content?
Dang, I thought this was an article about the GOPe.
Ummmm, yes!
They create an impression of instability and uncertainty for the future of earth's atmosphere by the description of the variability ( over billions of years ) of the atmospheres of other planets under much different conditions.
They include the magic words, "potent greenhouse gasses", so that we may make the connection. It's all, "up in the air" ... ha ha!