hi FD, tyou have faith in god and i for onre will never try to take that away or mock any faith, in saying that you know there has to be a but............but the earths eco system i am sorry to say has evolved and still is. the very oxygen we breathe is by earth standard time frame  new. it is fact that millions of years ago this planets atmosphere was mostly C02 with a methane carbohydrates mix. even going back to the start of the dinosaur era the carbon dioxide levels were much higher than today. the gas oxygen is a by product ( a waste gas) that was expelled by primitive plants long before the first T Rex walked the planet. the eco system we have today as said has evolved even trees as we know them, grass and flowering plants are all relativly new.

we can only speculate at how earths eco system will evolve, at present we the humans are killing it.