Source: Freepik
Mars, also known as the Red Martian, has been considered as a potentially habitable planet in which humans could thrive in need of the evacuation of Earth or just to build a colonization.
Mars has a lot of readily available biological resources that are necessary for Earth, such as oxygen, permafrost, carbon dioxide gas and many other forms of resources that are simply not available in close proximity like the Moon is. Another benefit of colonizing Mars is that it is powered by Deuterium fuel which is way more common on Mars than on Earth or even the Moon.
The reason why this is necessary for building a civilization is because its implementation could be more efficient than typical fusion reactors that are integrated already on Earth. Another implementation for Mars would be crop production. As Mars has an atmosphere that is thick enough to sustain miniature solar events from the Sun more often than that of the Earth, it will have less damage towards the crops.
Additionally, with the increased radius from the Sun, Mars will have less intensity of heat from the Sun, decreasing the chance of evaporation and low crop yielding rates. Therefore, Mars can then serve as a place where agriculture and nuclear reactions can take place and then serve as a colonization to house humans in case of emergency.
Most importantly, Mars can possibly sustain human life as it is, similar to Earth, in the goldilock zone which is known for possibly creating habitable life for human growth.
In the future, as more and more natural disasters and degradations toward the climate and sustainability of Earth start to diminish, it should be the main priority of humans to build a base on Mars that can sustain human life similar or greater than the conditions on Earth, so the human population can live on.
References
Society, N. S. (2023, November 23). The case for colonizing Mars, by Robert Zubrin. NSS. https://nss.org/the-case-for-colonizing-mars-by-robert-zubrin/