Nothing of great interest. That's a tiny scratch in the surface of the planet, less than 1% of the radius.
On the other hand although we lack the technology you'd need to destroy the damp rock where we live, we only live on some dry-ish outside surface parts of the rock, and we could trash that part and drive ourselves extinct. "Oops"
On the other hand although we lack the technology you'd need to destroy the damp rock where we live, we only live on some dry-ish outside surface parts of the rock, and we could trash that part and drive ourselves extinct. "Oops"