Scientists have undertaken to answer this question. According to them, the state of the Earth would greatly improve if there were no humans on it. This is due to the fact that many harmful factors would disappear altogether. Moreover, many species of animals and birds, exterminated by our species, would have remained to exist on the planet.
At the same time, the air on Earth would become cleaner. And this, in turn, would lead to an increase in the average size of living beings. Scientists cite the African ecosystem of the Serengeti as a “standard” of life on our planet.