The C02 being released in the atmosphere from burning fossil fuels was in the air initially before being tied up by photosynthesis. So as time goes on (since inception of life) more and more C02 is tied up in hydrocarbons and locked away in the ground.
So here's the question. What happens to life on earth if this process keeps going for millions more years? At what point is there insufficient C02 for plants to function?
That point will like be arrived at within 500--900 million years through increases in solar luminosity, increased weathering, slowed plate tectonics, and loss of the Earth's oceans.
This is among several substantial changes to the the ecosphere which would make much present life difficult or impossible.
The C02 being released in the atmosphere from burning fossil fuels was in the air initially before being tied up by photosynthesis. So as time goes on (since inception of life) more and more C02 is tied up in hydrocarbons and locked away in the ground.
So here's the question. What happens to life on earth if this process keeps going for millions more years? At what point is there insufficient C02 for plants to function?