deletions | additions       diff --git a/section_Atmosphere_Before_delving_into__.tex b/section_Atmosphere_Before_delving_into__.tex  index d444679..0737eac 100644  --- a/section_Atmosphere_Before_delving_into__.tex  +++ b/section_Atmosphere_Before_delving_into__.tex 
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The atmosphere of Mars would require an additional 3.8 x 10$^{18}$ kg of mass to reach our terraforming conditions. This amount of water vapor is slightly larger than the estimated total mass of the north polar ice cap. Terraforming the atmosphere of Mars will require vaporizing ice from both the north and south polar ice caps.   The subsurface conditions of these regions are not well understood, but the polar ice caps are composed primarily of water ice and CO$_2$ ice. We examined several topological models of the polar ice caps and visually estimated the amount of water ice available to vaporize at each pole. Of the 3.8 x 10$^{18}$ kg of water ice needed, we can theoretically obtain 1.74 x 10$^{18}$ kg of ice from the north pole and the remaining 2.13 x 10$^{18}$ kg of ice from the south pole.