Gaea Theory presupposes that the interaction between life and inorganic components of the Earth perpetuate the capability for carrying life on the latter.
While it may be true that there are inorganic feedback systems that kill off groups of organisms after the system is perturbed past a certain point, that would be the extent.
I cite the Great Oxygenation Event as an example of life, at one point, causing drastic changes to the planet on which it resided. I see little to keep such from occurring again -- a new species of life might very well, through it's very existence and processes, destroy what we consider "habitable".
To me, Gaea seems a fanciful elaborate construct pasted over natural processes that we already know of -- like niches, evolution and adaptation.
While it may be true that there are inorganic feedback systems that kill off groups of organisms after the system is perturbed past a certain point, that would be the extent.
I cite the Great Oxygenation Event as an example of life, at one point, causing drastic changes to the planet on which it resided. I see little to keep such from occurring again -- a new species of life might very well, through it's very existence and processes, destroy what we consider "habitable".
To me, Gaea seems a fanciful elaborate construct pasted over natural processes that we already know of -- like niches, evolution and adaptation.
