Question

Can man change or adjust Mars environment to make it more suitable for human habituation? How?

Answer 1

Answer:

Let us compare Earth to Mars.

Earth is at the Goldilocks Zone, a zone where the temperature is “not too Hot, and not too Cold, but Just Right”. Mars however, is at the somewhat edge of that zone, where it has a more colder temperature. For a planet to support life, it needs heat, water, salt, and air (carbon dioxide for plants, oxygen for animals and humans), Mars is cold, has frozen water at its polar ice caps and lakes, Mars is said to be too briny and salty for life, and Mars has lots of CO2, and Iron Oxide, and some nitrogen. Iron Oxide or Iron(III) Oxide, is the chemical name for the common Rust.

If the soil of Mars is compatible with our plants, it might be possible for the plants to grow, and if the plants succeeded and planted around the whole planet, it can create enough oxygen to engulf the whole planet in oxygen, if it had the chance, and if it succeeded, it can create an ozone layer to protect the planet from harmful radiation of the Sun. If it was possible, like 9–12% possible.

Man might need a fully utilized suit for about 20–40 years in order to colonize and establish a whole new world, a whole fantastic point of view of Earth from Mars, and again, if it was possible.

So to answer your question, Man has a possibility to alter Mars' harsh environment through hard work and advance scientific equipment that breaks the law of physics, or just advance NASA equipment that can transport people and resources towards Mars.

“So are you telling there's a chance?”, Yes, probably, man has a chance

Answer 2

Explanation:

The first thing we would need to do is increase the planetary temperature. This could be accomplished with the construction of giant orbital mirrors focused on the poles. The focused sunlight would melt the trapped dry ice, thickening the atmosphere by several tens of thousands of pascals. The atmospheric pressure would likely be too low for humans to endure, but it would definitely be thick enough for liquid water to exist. With the thicker atmosphere and subsequent higher temperatures, the ice trapped at the poles would melt, likely covering the majority of the northern hemisphere in a vast ocean.

We could then introduce cyanobacteria to convert the atmospheric carbon dioxide into oxygen, and eventually nitrogen fixing organisms to convert ammonia into nitrogen. We would likely need to add additional nitrogen to the atmosphere, which could be accomplished with atmospheric chemical engineering. We could also mine nitrogen from the Venusian atmosphere. Venus only has 3.5% atmospheric nitrogen, but the atmosphere in so thick there is over right times as much nitrogen in the Venusian atmosphere as that of Earth.