Global warming, icebergs meting?

I was asked this a while ago, and then again today. Basically the question is "If global warming is causing the icebergs to melt, and 95% of an iceberg is below the water already, then how can this cause sea levels to rise so much?"

Is there life on Mars?

There is evidence that there used to be, but it's all dead now.



What about water then? Well, yes but it's all in the form of ice at the polar caps.