The planet isn’t going to “recover”. We’re fundamentally changing the atmosphere, and it’ll never go back. The planet will be fine, some forms of life will go on, but the planet will not settle back into something hospitable to current complex life.
So oxygen in the atmosphere is relatively new geologically speaking, and oxygen is incredibly reactive, it oxidizes things which is a fancy way of saying it dissolves things slowly. It pretty well killed most things that weren’t already equipped to either process or release oxygen as waste. We’re good at dealing with it but we’re pretty sensitive to the exact mixture of air (which is mostly nitrogen anyway) and we’re likely past a point of no return for cascading runaway effects changing that mixture. That’ll kill most air breathers. The greenhouse runaway effect will acidify the oceans, killing most ocean life. The increased energy in the system from the greenhouse effect causes continent-wide superstorms that literally scour the face of the earth into something unrecognizable. Most of what survived before won’t survive that.
So yeah, earth will move on and there will likely still be some form of life on it in a few thousand years. But it won’t be us, or anything like us, and it never will be again. We are this planets only shot at producing space-faring life.
The planet isn’t going to “recover”. We’re fundamentally changing the atmosphere, and it’ll never go back. The planet will be fine, some forms of life will go on, but the planet will not settle back into something hospitable to current complex life.
megafauna never really came back. like, this one is very different from the ones before, but it’s not going to extinct everything.
So oxygen in the atmosphere is relatively new geologically speaking, and oxygen is incredibly reactive, it oxidizes things which is a fancy way of saying it dissolves things slowly. It pretty well killed most things that weren’t already equipped to either process or release oxygen as waste. We’re good at dealing with it but we’re pretty sensitive to the exact mixture of air (which is mostly nitrogen anyway) and we’re likely past a point of no return for cascading runaway effects changing that mixture. That’ll kill most air breathers. The greenhouse runaway effect will acidify the oceans, killing most ocean life. The increased energy in the system from the greenhouse effect causes continent-wide superstorms that literally scour the face of the earth into something unrecognizable. Most of what survived before won’t survive that.
So yeah, earth will move on and there will likely still be some form of life on it in a few thousand years. But it won’t be us, or anything like us, and it never will be again. We are this planets only shot at producing space-faring life.