American scientists want to build an ark on the moon. What is the motive of this plan?

It is reported that American scientists plan to build an ark on the moon? Doomsday seed bank? 6.7 million species on the earth have been preserved. The motive of this plan is that after the doomsday disaster of the earth's destruction, human beings can save the fire for human beings and make human civilization last forever.

Although high technology is developing and the social and economic level is improving, our natural environment is undoubtedly developing downwards. We can see that due to the transformation of the earth by industrial technology, our world is riddled with holes. Over the past century, biodiversity has been decreasing, and our earth resources have also been greatly reduced to some extent. Some people joke about this situation: we are getting closer and closer to the end of the world.

Indeed, by comparing the scene changes in the past hundred years, we can clearly find that the green mountains and green waters in the past have been greatly reduced, and all kinds of land used by human beings continue to occupy other terrains in the world. Even deserts, swamps and other landforms have not escaped our transformation, because the transformation of the world has become more and more frequent, which has caused our natural environment to become very bad, and some rare natural and man-made disasters have occurred frequently in recent days. Just like Australian mountain fires, North American hurricanes ..., there are also some super volcanic eruptions, global nuclear wars, asteroid impacts, epidemics, accelerated climate change, global solar storms, global droughts and other environmental climates that are warning our survival. The earth has been overwhelmed by population growth and the development of the times.

Under the potential threat of these situations, the survival and development of human civilization on the earth has faced very big problems. So under such a threat, many people are constantly looking for a way out for their future development, including finding new places suitable for human habitation. In recent years, we often see news reports about the livable places of these other planets, but so far no planet can compete with the earth and maintain the survival and development of mankind.

Therefore, the construction of this month's cabinet is also a precaution, because there are too many uncertainties in the future, and human survival and development have passed for thousands of years. In such a long time, our human civilization has undergone qualitative changes. In order to continue this civilization and have a support for our future survival and development, this is something that must be done. I just hope that day will come slowly and make us richer.