Why is Antarctica's population so low?

Answer 1

Antarctica is a continent dedicated to science with no native or permanent population. People who work and live there temporarily, do so in support of science. They are hired by their governments and serve periods from a few weeks to a year on the continent.

Answer 2

It is melting from a hole in the Ozone layer.

Answer 3

There is no permanent or native population on the continent. All personnel there live in Antarctica temporarily to pursue scientific study of the health of planet earth.