The New York Times article in question stated that the Ward Hunt Ice Shelf was located off Greenland instead of Ellesmere Island. (dotearth.blogs.nytimes.com)
In some cases the retraction was not freely available, or it was not linked to the full - text article in question. (sciencemag.org)
Interestingly, the Huffington Post article in question was one which a number of British experts had praised or shared themselves. (30datesblog.com)