Re:The future lifespan of Earth’s oxygenated atmosphere
by einpoklum on Wednesday March 03, 2021 @09:08AM
(#26328444)
TL;DR: It's basically just than speculation based on the sun being hotter in a Billion years.
So, two people ran one model described in one paper. Even if that was the whole issue, it would merit "may last only" rather than "will last only".
Additionally, the authors are making a variety of assumptions with little or no basis about the behavior and development of Earth Flora and Fauna; specifically, that it will be mostly static in most ways, with no adaptation in genetics, inter-species interaction, prevalence in different places on Earth etc.
Having said that - in 5 Billion years, Sol will become a Red Giant, so this planet is going South at some point between now and then.
So, two people ran one model described in one paper. Even if that was the whole issue, it would merit "may last only" rather than "will last only".
Additionally, the authors are making a variety of assumptions with little or no basis about the behavior and development of Earth Flora and Fauna; specifically, that it will be mostly static in most ways, with no adaptation in genetics, inter-species interaction, prevalence in different places on Earth etc.
Having said that - in 5 Billion years, Sol will become a Red Giant, so this planet is going South at some point between now and then.