The planet is getting skinned:

http://seattlepi.nwsource.com/local/348200_dirt22.html

i grew up on a farm.............erosion and soil loss is a GREAT problem

until recntly, there was little profit in farming, so farmers had little ability to stop the erosion (they didn't have the money)

All of the continents are mountains. All of the erosion from these continents are washing into the sea and the mountains are becoming solid rock.