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The possibly failed salt cavern may be closer to the outer wall of the Napoleonville Dome than Texas Brine officials believed.• DNR defended the timing of its disclosures about the history surrounding the salt cavern as matching the emerging facts of the incidents in Bayou Corne.• Sonny Cranch, Texas Brine spokesman, said company officials have been as surprised as anyone about a possible collapse of their salt cavern.• DNR officials allowed Texas Brine to deposit naturally-occurring radioactive material arising from drilling into two company salt caverns, including the one that may have breached in the Bayou Corne area. As of Wednesday, state environmental officials had not tested the sinkhole for radioactivity."

Friday evening, the day the sinkhole developed and released a foul diesel odor was the first time DNR officials made public information indicating that the cavern may have failed and caused the sinkhole, a “slurry area.” Tuesday night, DNR and Texas Brine officials explained that the cavern appeared closer to Napoleonville Dome’s edge than thought when the cavern was issued a state permit 1982, and that the cavern wall might have been breached. That failure could allow a connection between the cavern’s brine contents and sediments around the dome.

Ball said DNR officials focused on locating a source of the natural gas large enough to send gas bubbling up in the bayous and they focused on area natural gas pipelines and two salt caverns known to be storing natural gas under pressure.

UK scientists have detected a huge dome of freshwater that is developing in the western Arctic Ocean. The bulge is some 8,000 cubic km in size and has risen by about 15cm since 2002. The team thinks it may be the result of strong winds whipping up a great clockwise current in the northern polar region called the Beaufort Gyre. This would force the water together, raising sea surface height, the group tells the journal Nature Geoscience.

The data (1995-2010) indicates a significant swelling of water in the Beaufort Gyre, particularly since the early part of the 2000s. The rising trend has been running at 2cm per year.

A lot of research from buoys and other in-situ sampling had already indicated that water in this region of the Arctic had been freshening. This freshwater is coming in large part from the rivers running off the Eurasian (Russian) side of the Arctic basin. Winds and currents have transported this freshwater around the ocean until it has been pulled into the gyre. The volume currently held in the circulation probably represents about 10% of all the freshwater in the Arctic.