Seabed map shifts as coastal states extend control

OSLO, (Reuters) – Coastal nations have quietly taken  over areas of seabed totalling almost the size of Australia  since 2002 and far more is up for grabs in one of the biggest  redrawings of the world map in history, experts said.

A year after a May 13, 2009, deadline for states to outline  the outer limit of their continental shelves, a U.N. commission  is struggling with a vast backlog of claims to regions such as  the Arctic that may contain oil or minerals.

“It’s going on quietly…but we must speed up the work,”  said Harald Brekke, a vice chairman of the U.N. Commission on  the Limits of the Continental Shelf which is overseeing what is  meant to be the final fixing of maritime boundaries.

“In the worst case it could be 20-30 years which is not  acceptable,” he said on Wednesday of the current pace by the  part-time commission.

Under existing laws, coastal states control a zone 200  nautical miles (370 km) off their coasts.

The new round will fix  rights to exploit the seabed in places wherea continental  shelf, usually of shallow waters, extends further offshore.

The size of the shifts is comparable to momentous changes to  the world map after the end of European colonial rule, said Joan  Fabres, head of the U.N. Environment Programme’s Shelf Programme  based at the GRID-Arendal foundation in Norway.

“This is a much more peaceful and ordered process,” he said.

Brekke estimated for Reuters that the Commission has, in  work since 2002, approved areas totalling 6 million sq km (2.32  million sq mile) for states including France, Britain,  Australia, Mexico and Norway.

Australia’s land area is about 7.7 million sq km. And Brekke  said the total areas claimed so far by more than 50 states added  up to 27 million sq km — an area slightly bigger than the  entire North American continent.

Some island nations, such as the Cook Islands, Palau, the  Seychelles or Micronesia, could gain control of seabeds hundreds  of times the size of their land, Fabres said. His group advises  developing nations.

Control of the seas has gradually extended offshore. In the  18th century, for instance, it was set at three miles — the  distance a cannonball could be fired from the coast.

So far, recommendations by the Commission have been for  uncontroversial areas — it lacks powers to rule on overlapping  claims such as in the Arctic, the South China Sea or the  Falkland Islands disputed by Britain and Argentina.

About 50 states have submitted data about their continental  shelves. A few, including the United States, are not bound to do  so because they have not ratified the U.N. Law of the Sea.

The Arctic, for instance, may become more accessible because  of a thaw caused by global warming. Many experts are urging  caution following BP’s spill in the Gulf of Mexico linked to the  fatal explosion on a Transocean rig.

In a symbolic claim in 2007, a Russian submarine planted a  flag on the seabed beneath the North Pole in waters 4,261 metres  (13,980 ft) deep.

That is beyond the limit of current drilling  technology — Transocean holds the water depth record for  drilling in the seabed in waters 3,051 metres deep.