World at total thaw
If all the ice and snow of Antarctic melted this is what the world would be.  Remember over 90% of the frozen water on the planet has now become part of the hydrosphere.  Sea level has now risen to 73 meters above normal.

Question:
What is the most impacted part of the Earth?  Besides massive flooding – what other changes do you think would occur?  How does the dramatic change in one Earth system impact all the others?