How can you say that human being has created irreparable loss to the environment​

Answer Using too many natural recourses, air pollution, deforestation, hunting and causing other species to become critically endangered / extinct, growing population which is creating huge demand on economies, factory farming, rubbish and waste pollution. That's just a few things of the top of my head, there are so many more contributing factors.

: my  interesting to note that modern humans have been around for a very long time and lived for much of it without causing much irreparable damage to the environment. However, over exploitation and pollution have started affecting the environment negatively over the last few centuries.Unfortunately, humans are the most polluting species. Earth is very good at recycling waste, but we are generating far more than earth can cope with. Pollution occurs at different levels and it doesn't just impact our planet; it impacts all species, including mankind, who dwell on it.

answer; i believe that the correct answer is (the explosion of a nearby star(supernova);