In what way will mankind disappear from the earth in the future?

There are more and more people on the earth, and the load on the earth is getting heavier and heavier. When the population exceeds the maximum load of the earth, mankind has to find a new way out. In many years to come, human beings may disappear from the earth. Humans have either discovered a new livable planet and actively disappeared on the earth, or they have been passively disappeared by the crazy counterattack of the earth.

Man has discovered a new planet, and all people have emigrated. The earth's natural resources are limited, and with the destruction of the earth's environment by human beings, the earth is becoming more and more uninhabitable. Now, people are constantly exploring the outside world, hoping to find another planet suitable for human life in the vast universe, so as to immigrate to other planets when necessary. After hundreds of years of searching, man finally found a suitable planet, so he made a plan to leave the earth. When they build a spaceship that can carry a large number of immigrants, they will choose a day to leave the earth forever. There are no traces of human beings on the earth, and the earth has become a paradise for animals.

Human beings are punished by nature and passively disappear on the earth. There used to be many overlords on the earth, but they all disappeared, and so did mankind. Humans have created various civilizations on the earth, and people on the earth are immersed in the happiness of the Lord of the earth. They exploited resources without restraint, and produced offspring, which led to more and more crowded on the earth in the later period. In order to survive, they built many factories to let sewage flow into rivers. Later, the river was unfit for drinking, and the aquarium in the water became extinct. Neither the animals on the ground nor the birds in the sky escaped from the clutches of human beings. They become human food or clothes. All kinds of evil deeds of human beings have brought disasters to themselves, and nature has begun to retaliate against human beings. Humans were unable to cope and eventually disappeared from the earth.

In short, there are only two ways for mankind to disappear from the earth in the future, either to leave with dignity or to disappear passively.