No, particularly in combination with the lack of an active magnetic field to shield the atmosphere from the solar wind. It's thought Mars had a much thicker at

No, particularly in combination with the lack of an active magnetic field to shield the atmosphere from the solar wind. It's thought Mars had a much thicker atmosphere in the far past, now mostly bled off into space. Though if a new atmosphere were created, it would be lost again on a very, very long time-scale -- hundreds of millions of years. It might work to just "top up" once in a while.