Saved a billion ~human~ lives, perhaps. It caused the death and destruction of many billions of non-human lives. It massively reduced bio-diversity on 90% of th

Saved a billion ~human~ lives, perhaps. It caused the death and destruction of many billions of non-human lives. It massively reduced bio-diversity on 90% of the earths surface. It has to be said, it has to be acknowledged, the 'progress' of man has come at an extraordinary cost to every other living thing.