If there is such a possibility as elements of natural time and space containing such a vehicle as human conscience or other non-corporeeal intelligence or awareness that was not necessarily humanoid to begin with then mother earth should have shrugged us off a long time ago.
One can easily go mad just being able to think of how much karmic damage has been done to the collective human condition since we kicked off our boots on this measly pebble of a home in that humanity has a rich history of visiting unmentionable horror upon itself, as we yet are able to realize just what the damaging consequences will be in the distant future. Are our species so callous that we fail to grasp the very simple fact that all life is connected in one way or another, and whether we believe it or not is inconsequential to the law. People have been saying since time immemorial that for every cause there is an equal and opposite effect. I guess what goes around, comes around huh?