Mars has polar ice caps, a axail tilt. Flowing water. Etc.
Other inhabitable planet(s) discussion

Yes, but the temperature gets to levels that no human can survive in, how would we survive that for a long amount of time?

Musk talks about warming the planet by focusing sun light upon it using satelittes. But if you can make other planets earth like why can't you restore the earth likeness of earth?

I too think it's very childish Idea about habitable planets planet earth is the only planet we can live on right now most habitable planets discovered are light years away and if talk about Mars colonization you know how mush resources will be wasted if we turn out to be unsuccesful

Dozens of people have died from the cold already. Heat waves are much easier to deal with and more comfortable than artic blast deep freezes. When it's 100 degrees all ot has to do is drop 20 degrees and it's fine, but when it's negative 10 it has to what? Rise 80 degrees? Global warming is one of the healthiest things for the planet. I am looking for driving jobs and will not apply to companies that use electric vehicles.
I created this to talk about other inhabitable planets. Feel free to talk about it here!