Argentine Antarctica the first on the continent. On 18 December 2012, the Foreign & Commonwealth Office of the United Kingdom announced that the southern part of British Antarctic Territory (and Argentine Antarctica) has been named "Queen Elizabeth Land" in honour of Queen Elizabeth II. Argentina, which lays claim to part of the area, criticised the naming. In 2013 the Argentine Defense Ministry announced that Petrel Base will become a permanent base by 2015. The base will have an airport and logistics for transfer of passengers and cargo. The geographic structure of the Argentine Antarctica continues some features of the Patagonia, located to
Antarctica warming up; particularly strong warming has been noted on the Antarctic Peninsula. A study by Eric Steig published in 2009 noted for the first time that the continent-wide average surface temperature trend of Antarctica is slightly positive at >0.05 °C (0.09 °F) per decade from 1957 to 2006. This study also noted that West Antarctica has warmed by more than 0.1 °C (0.2 °F) per decade in the last 50 years, and this warming is strongest in winter and spring. This is partly offset by autumn cooling in East Antarctica. There is evidence from one study that Antarctica is warming