Frozen Sea on Mars

Europe's Mars Express has found evidence of a huge frozen sea on the red planet - around the dimensions and depth of the North Sea - covered by a few centimeters of volcanic ash. The authors comment:

Micro-organisms found within deep-sea hydrothermal vent communities are common ancestors to many forms of life on Earth, and a Martian aquifer having intermittent contact with the surface might provide an opportunity not only for troglodytic life to develop, but to be disgorged on to the surface, and the frozen sea described here would be a prime candidate area for the preservation and discovery of its remains.

I guess all we need now build a highway across the plains of Eastern Elysium, get some SUVs on the road and wait for global warming to do its work.