No. We came out of a 'little ice age' around 1850 and the temperature has increased slightly due to this, but nothing abnormal is happening. Global warming alarmists will tell you the polar caps are melting. This isn't exactly true. The University of Illinois keeps the sea ice data. As you can see from the chart below, Arctic ice is decreasing.
However, Antarctic ice is currently increasing.
When you combine the two charts into a global sea ice chart, you can see sea ice has been very stable for the last 150 years.
(Click charts for larger view)