"Species are threatened because of over-exploitation, habitat destruction, climate change, and so on. Efforts to reverse, or stall, a decline in population would have to go on indefinitely (i.e. would have to be sustainable) unless all of the factors involved in the decline are removed. But modernity is the cause of all of those factors so conservation will inevitably fail until modernity ends (and then there would be no conservation efforts with humans needing to be more involved in saving their own lives)."