With the global warming, will people migrate to other planets?

We have heard that global warming and melting polar glaciers will lead to rising sea levels, and many low-altitude cities will be submerged. Scientists predict that the Maldives, a world-famous maritime archipelago, will disappear under the sea level within 30-50 years. In science fiction movies, due to the crazy expansion of human territory, the earth's land will not be able to meet human survival. In the future, we will probably live in the sky and even emigrate to other planets, but consider more realistically where we will live without land.

At the UN-HABITAT General Assembly, the Executive Director of UN-HABITAT proposed that in the future, mankind may have a "floating city on the sea". Living in the ocean? Lost Atlantis? It sounds amazing, even exciting. What is a floating city like? At present, the United Nations has launched a pilot program to build a "floating city".

Floating city is the primary countermeasure to deal with natural disasters and slow down the urban land crisis. Architect Bijak Inges designed a prototype of a "marine city", which is hexagonal, and hexagon is the most effective form for buildings to resist natural disasters. Urban buildings will rise and fall with the rise of sea level, wind power and water power will become the source of power generation, hydroponics will replace soil cultivation as a new way of food supply, and traditional aquaculture can provide nutritional resources for human beings.

Shuicheng is not innovation. In some poverty-stricken areas in Thailand, Cambodia and Laos, people have developed their homes into bays and lakes, forming water towns with their own characteristics. There are also many boathouses in Seattle and Mexico. The difference is that people usually live in small areas. In the future, if forced by the environment, a considerable number of people on the earth will need to migrate to the ocean. By then, the new "floating city" will become the Noah's Ark of mankind.

Facing the sea and wearing warm flowers, the poet Haizi's expectation for the future may come true. We may not only face the sea, but eventually embrace it. Nowadays, marine pollution is becoming more and more serious. If it is really suitable for human habitation, how to solve the problem of marine pollution is even the most important thing we should consider at present.