As a species we are little more than a plague.
Having killed off or reduced to barely sustainable populations most of the large mammalian species in our quest to feed ourselves and our burgeoning population we are now killing off the insect life which we rely on for pollination of our crops.
I have no doubt that science will find a way round this and for humankind to carry on for at least another couple of hundred years before the inevitable population crash or even extinction but it probably won't be in a world any of us would want to live in or even recognise.
I'm glad I won't be around to see it.