Mars Ice Shaken Not Stirred

Signs of a latitude-dependent climate on Mars exist now that pictures have revealed a range of ice-made features that show a strong preference to certain latitudes. Implications of a dynamic history of Martian climate change are popping up. Instruments to study the red planet include the Mars Global Surveyor's Laser Altimeter (MOLA) and Camera (MOC), the Mars Reconnaissance Orbiter's Context Camera (CTX) and High Resolution Imaging Science Experiment (HiRISE), and the Mars Express's High Resolution Stereo Camera (HRSC).
The signs of water ice are obvious today at Mars' poles. But as you move towards the equator, there is plenty of evidence of water ice having shaped the surface in different ways not so long ago. Widespread bumpy polygonal patterned ground near the poles suggest the contraction and expansion of icy permafrost ground (similar to Earth's arctic). Also, between 30 and 60 degrees latitude in both hemispheres, the patterned ground gives way to a pervasive pitted texture of once ice-rich dust deposits.
"It's a quest to understand the Martian water cycle"

http://www.marsdaily.com/reports/Mars_Ice_Shaken_Not_Stirred_999.html