GLOBAL WARMING? Believe Who?

Two Images, Two Links Tells All

The top image was obtained from Revolver Maps which I believe is real time.

The bottom image was obtained from NASA's new Eyes on Earth site.

My questions are... 

My first question is....Where did the top image come from? It only shows ice on land. NASA's site can show ice cover throughout the year. Nasa's image (bottom) was grabbed from the September 2012, the time when most of the ice should be melted.

My second question is.... on NASA's Gravity Map, the current pole region shows less gravity over water and more gravity over land.  Ice floats. So, if ice is less dense than water, it would displace more dense ocean water which would cause the 1/2 inch in sea level being touted today.  Less dense materials will manifest less gravity.

My third question is.... why is gravity getting larger over land masses?  Ice/snow over land would add to the gravity manifested over land because the added snow/ice would add mass. (which the gravity map shows). If, the mass of the arctic icecap is indeed getting less through melting, we should still see a minimum of zero change in gravity. (Salt water is more dense than fresh water.)

So, who are we to believe?  What the media tells us?  Or what our perverted logic tells us?