If you mean physically, no. It's almost all arid desert tinted red by iron compounds.
If you mean in the "Green peace" way, yes because it is an entirely natural feature.
Green Mars was created in 1993.
its not
If you build a green house on Mars, no one will live in it because they haven't expected spending their life on Mars!
Mick Mars has green eyes.
NO
I't was actually Bruno Mars that wrote the song!! Cee-Lo Green found a sketch of the tune written by Bruno Mars and Phil Lawrence. The verses were written by Green and the refrain by Mars.
Green
they are green
A green ferrari
only on mars
Not with present day technology.
It is red