Establishing a colony on Mars is not going to work if we can’t figure out how to function on Earth. We’ll just be running away from our problems and creating new ones elsewhere. We’ll destroy Mars just as we are destroying Earth.
…Or, they say that there used to be water on Mars, as evidenced by the clay they found. Maybe Mars is the harrowing and daunting foreshadowing of what Earth will become if we don’t take care of Mother Earth…if we’re not already too late.
missbusybee 
Or maybe Venus! All those green house gasses!
Ooo! That’s right! I just read an article about Venus and how they described it as “hellish” world. It might be more likely Earth is following Venus’ evolutionary trajectory because of the greenhouse gasses.