Will the Earth ever be undersea completely, so we will have to live in space or on another planet (is that possible)?

Question: Will the Earth ever be undersea completely, so we will have to live in space or on another planet (is that possible)?
- Keywords:
  climate change,
  environment,
  life
Asked by to Alan on 19 Mar 2014. This question was also asked by .
- Alan Fitzsimmons answered on 19 Mar 2014:
  
  No, even if you melted all the ice at the North and South poles there would still be lots of land above water.
  
  Because our planet is warming up, some ice is melting and the sea level is rising slightly every year. We think that the sea level will use by about a metre over the next 100 years. That’s not too bad, but people living at the Sea shore may have to move.

Question: Will the Earth ever be undersea completely, so we will have to live in space or on another planet (is that possible)?