Interesting post at Pierre's web site – https://notrickszone.com/2020/02/10/scientists-oxygen-nitrogen-radiative… … Earth's atmosphere is made up of 78% nitrogen and 21% oxygen = 99%. In other words, according to mainstream climate scientists of the alarmist kind there are just 1% of greenhouse gases (such as co2). Nitrogen and Oxygen are said to not absorb infrared radiation yet some scientists have actually been saying they do radiate IR – since 1944. Now, it would be a hard sell for alarmists to call for a ban on oxygen and yet they are able to demonise co2, which farmers pump into plastic greenhouses in order to grow bountiful crops. Not a lot of difference. Some recent studies, in 2012 and 2016, say nitrogen and oxygen are radiatively important greenhouse gases with IR temperature absorption capacities similar to co2. Hence, if alarmists were honest and truthful why are they not calling for reducing oxygen levels in the atmosphere. They would be laughed at, we might imagine.