Not so much a bomb, more of a… what’s the opposite of a bomb? A slowly deflating beach ball?
A depopulation woopie cussion
There are economical implications to this development. But IMHO population decline is necessary to ease the pressure on the ecosystem. 34% of mammals are humans, 62% is livestock, only 4% are wild animals. We shifted the natural world so far out of balance, that the need to sacrifice economic growth for sustainability is inevitable.
In truth the bomb has already gone off and we’re living in its aftermath. Secondary explosions are still going on in various places. Humanity is slowly coming to its senses but isn’t fully aware yet of all the damage that’s been done.
Problem is that other wildlife is unlikely to survive the bottleneck of human population
I’m not so certain it will unroll slowly. I think there could be a feedback mechanism involved, specifically related to economic organization and its inability to react in a sufficiently timely manner.