My conservative friends say that this global warming is a natural trend and is not man made. It is true that Antarctica has been subject to the ups and downs of natural climate change. However, with the current ice studies there has been an unprecedented ice shelf loss. 

I have been traveling on this trip with Canadian geo-scientist and science journalist, Susan R. Eaton, who said,"the reason we go to Antarctica is to study climate change because it offers a hands on out door laboratory." She continued "The Western Antarctic Peninsula has warmed 2.8 Celsius degrees in the last fifty years, more than any place on earth. Antarctica is the climate change agent on the planet." 

How does this happen? 

Carbon enters the sea, warms up the water, changes the wind patterns due to the warming. Even a small melting can cause sea levels to rise making many costal cities around the world uninhabitable.