Towing iceberg from the poles had been one of the dream human had since early time. But, it has never been fully successful.
I saw a nice piece of article about – The Many Failures and Few Successes of Zany Iceberg Towing Schemes – in The Atlantic.
Mark Brown wrote another article in Wired UK on how a building sized iceberg can be towed.
(Image source – http://www.3ds.com/icedream/)