Who owns Antarctica?

According to a report from Reuters, Britain plans to submit a claim to the United Nations to extend its Antarctic territory by a million square kilometers. However, the claim could cause tension between Britain and a few South American countries — Argentina is working on a proposal to the U.N. which covers the same territory. The British claim also conflicts with the spirit of 1959 Antarctic Treaty, which prevents all exploitation of oil, gas, and minerals, other than for scientific research.

May 13, 2009 is the deadline for claims that will divide up 7 million square kilometers (the size of Australia). Russia, Australia, France, and Brazil are among the few that have made claims thus far.