why do ice bergs melt in the winter, even though it is so cold

Question: why do ice bergs melt in the winter, even though it is so cold
- Keywords:
  iceberg,
  temperature,
  water,
  winter
Asked by 561yttc33 to Rebecca on 23 Jun 2015.
- Rebecca Jones answered on 23 Jun 2015:
  
  Ice bergs can melt when they reach slightly warmer waters and warm air can melt the iceberg on the surface. This creates what are called ‘melt ponds’ which trickle down the iceberg, creating cracks. The warmer water also works on the bottom of the iceberg, breaking it up little by little.

Question: why do ice bergs melt in the winter, even though it is so cold