18. Methane
We know, one of the things a planet needs to have is methane? Isn’t it a problem on Earth today? This is true. However, despite critically high methane emissions today in our environment, we actually do need some methane in our environment too. For those unaware, methane’s main job is to help us not freeze to death.
Seriously, it develops naturally and results in the Earth not cooling down too much for life to remain, well, living. It is one of the most critical greenhouse gases we have. The problem today is that around 60% of methane is caused by humans, meaning natural is meeting man’s contribution. This is why the number is so high. This can be prevented on our new planet.