>“If we want to warm up the atmosphere of Mars, what if we use global warming?”

but we can't even pluck the CO2 out of Earth's already incredibly useful atmosphere.

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trying to make something useful out of "nothing" is much much harder.

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https://en.wikipedia.org/wiki/Terraforming

Terraforming or terraformation ("Earth-shaping") is the hypothetical process of deliberately modifying the atmosphere, temperature, surface topography or ecology of a planet, moon, or other body to be similar to the environment of Earth to make it habitable for humans to live on.

Whatever process is used to make Mars habitual. Would take years, if not centuries, to achieve

Good thought. Many scientists have already thought about it. Its called terraforming.

Mars has many problems thst need to be solved for humans to live there.

1. Atmosphere. Somehow, you need oxygen, and filler gas nitrogen and some carbon there. You can get these vis comets in theory but we dont even have a way to control comets or steer them into mars.

2. Soil. Mars has no soil. The ground in mars is self sterilizing. Its toxic to bacteria and plants. We would need to remove or change the surface. Also bring soil from earth. The dust is also sharp. You dont want to breathe in that or you are dead.

3. Magnetosphere. No protection from cosmic rays. In theory a thick atmosphere would protect people. But scientists are not 100% sure about this one.

4. Gravity. Gravity on mars is pretty bad. It might not be possible for humans to live with such low gravity.

5.Time. Terrsforming mars could take thousands if not millions of years. Its not worth it imho.

In my opinion, it would be smarter to use geo engineering or space mirrors to decrease sunlight hitting earth. This could solve our problem with the sun for billions of years and extend earths life until the red giant phase of the sun.

In the red gisnt phase, in theory, we could extend the orbit of earth away from the sun toeards jupiter.

But after that, just a bit of shade would solve the red gisnt phase of the sun aswell.

But we wouldnt have a way to prevent the death of the sun. But in theory, removing helium from the sun could extend its life.

But who knows. I enjoy discussions about space.

Leave Mars be; there is much to learn.
While we dream of making Mars look like Earth, we are busy making Earth look like Mars.
Terraform Earth.

You could make a synthetic atmosphere on mars. This is a cool thought.

A big part of global warming (in this specific sense, keeping the earth at a hospitable temperature for millions of years) is caused by rain clouds, surprisingly enough. Not saying it couldn’t be done with conventional greenhouse gasses (carbon dioxide and methane), but I think it would be better to do it in a natural sense (water vapor). That’s an interesting thought though, and I encourage you to explore it more with your teacher.

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