But wait a Official Shingo Takagi 20th Rising Dragon T shirt . Mars long time ago had the same conditions as earth(flowing water etc) but why did it become like this? All the atmosphere might have washed away by the solar wind . Even now due to solar wind 100grams(not sure of the number) of atmosphere of mars is washed away per year. So even if we now emit green house gases there they are going to be washed away and become useless. But its not happening to earth, because the solar wind cannot reach till the atmosphere , our magnetic feild stops it (yes we first need to pray for that magnetic feild looking at a compass needle). Mars has no magnetic feild (it has local magnetic feilds due to some astroids with metals collided with planet but doesnt work for our purpose). Since there is no magnetic feild all the plan is waste of time. 🙁 . But wait for earth magnetic feild always changes with time. So may be the same for mars. Wait for some years (not few) and then mars may develop magnetic feild. One more interesting thing mars doesnt have its own magnetic feild but sun has magnetic feild.
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