I truefully had heard something a while ago. That we could affect the climate an Mars in general. The how part is by getting certain plant species planted on mars an creating some carbon dioxide, there by we would eventually get oxygen, an rain. An I heard on T.V. That they could create a new earth like atmosphere on Mars in almost two years. I would like to discuss the wide range more or less. Of what plants could be used, could this theory occur an within the two years? What could changing Mars. Do for us? Would there be suitable oxygen for humans? What animals would we need there? Why or why not? Could this happen? Could we make this "red" planet habitable? The list of questions I could ask an you are many. let's "talk" about this. An keep this thread going. I think this is a interesting "theory"