There's a newer theory bout the Grand Canyon gorge that postulates a similarly large glacier in Canada burst like a water balloon during its recession.....blasting the entire central area of North America with a land-tsunami....and the canyon it a vestige of the flood. Other evidence includes hills characteristic of water flow across the plains...like the ripples of sand on a wave-washed beach...on steroids.
If that's a similar case in Antarctica, the planet could be in for a major soaking wave sometime soon, as the ice liquefies in the interior, and the ice-dam breaks.
Swoosh! [Bush's fault.]
...On average, Antarctica is the coldest, driest, and windiest continent, and has the highest average elevation of all the continents. Since there is little precipitation, except at the coasts, the interior of the continent is the largest desert in the world...
