Over population of humans created the biggest problem already. Climate change, farming too much to feed that, 96% of all mammals are human and livestock, only 4

Over population of humans created the biggest problem already. Climate change, farming too much to feed that, 96% of all mammals are human and livestock, only 4% are wild that we can't exploit, 70% birds are poultry, other species are going extinct. But people here are self centred like always, so those are not bigger problem to them but future economy is.