The Carbon Versus Water Battle Goes Hemispherical SpaceDaily

When astronauts finally land on Mars, a safe bet is that they’ll head for northern climes if they intend to spend much time there. That’s because nearly all the available water is frozen as ice at the north pole. Planetary scientists have been aware of this for some time, but they now have a new clue why it is so. In the March 21 issue of the journal Nature, California Institute of Technology researcher Mark Richardson and his colleague John Wilson of the National Oceanic and Atmospheric Administration reveal that the higher average elevation of the Red Planet’s southern hemisphere ultimately tends to drive water northward.