We don’t, however, have any idea how to keep humans alive after killing of all the other species. We appear to be totally reliant on some part of the natural wo

We don’t, however, have any idea how to keep humans alive after killing of all the other species. We appear to be totally reliant on some part of the natural world continuing to work, and we don’t know what part of it is required. Prudence suggests we be cautious about how much of it we decide to kill off.