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Jan Wyllie

Britain can't afford to go cool on climate change | Observer editorial | Comment is fre... - 0 views

  • Two years ago, the Copenhagen climate summit was alive with the belief that an agreement would be reached. No such expectations have been voiced in Durban, where climate negotiations seem beset by political complacency and the prospect of failure. Yet scientists' warnings have never been clearer. Organisations such as the Royal Society, Nasa, the Met Office, the national science academies of virtually every country on the planet – as well as several dozen Nobel laureates – have made it clear they think greenhouse gases are having a major impact on the planet.
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Bayou Sinkhole: Radioactive dome issues covered up over a year [09Aug12] - 1 views

  • 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.
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  • Tuesday, a University of Texas seismologist found environmental modifications (ENMODs), geological disturbances such as earthquakes, correlate with oil and gas company's hydraulic fracturing injection wells, according to research reported in the journal Proceedings of the National Academy of Sciences. Wednesday, due to the escalating swampland disaster, Chevron Corp’s subsidiary Bridgeline Holdings gas energy company halted its nearby pipeline activities and drew down fuel at its nearby storage cavern.
  • A Texas Brine letter dated Aug. 25, 1995, requesting the disposal says the radioactive “scale” had accumulated in soils around the two cavern wells. (Read letter.)EPA says the radioactivity of scale, a common byproduct of oil and gas exploration and production, can vary widely, from background to much higher levels.
  • Government authorized Texas Brine to dispose radioactive material into cavern DNR records show that on Aug. 31, 1995, it authorized Texas Brine to dispose of 20 cubic feet of naturally occurring radioactive material by pumping it into the cavern and another Texas Brine salt cavern in Lafourche Parish. (Read letter.)
  • The Bayou Corne disaster has resulted in a recently declared State of Emergency and the area is under a mandatory evacuation order.
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Radioactive cesium detected from 2 whales+ [16Jun11] - 0 views

  • Radioactive cesium was detected from two minke whales caught off the coast of Kushiro, Hokkaido, in Japan's so-called research whaling, a whalers' association said Tuesday.
  • While the level of the radioactive material remained below the temporarily set upper limit, the association officials said during a press conference in Kushiro that the contamination must have been caused by the continuing nuclear crisis at the Fukushima Daiichi power plant and that they will closely monitor future developments.
  • During the research whaling that started in late April, 17 whales were caught, and researchers examined six of them. Of the six, two were found tainted with 31 becquerels and 24.3 becquerels of cesium per kilogram of whale meat, they said.
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  • The upper limit tentatively stands at 500 becquerels per kilogram.
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Forecast predicts biggest Gulf dead zone ever [16Jun11] - 0 views

  • Scientists predict this year's "dead zone" of low-oxygen water in the northern Gulf of Mexico will be the largest in history — about the size of Lake Erie — because of more runoff from the flooded Mississippi River valley.
  • Each year when the nutrient-rich freshwater from the Mississippi and Atchafalaya rivers pours into the Gulf, it spawns massive algae blooms. In turn, the algae consume the oxygen in the Gulf, creating the low oxygen conditions. Fish, shrimp and many other species must escape the dead zone or face dying
  • Federal and university scientists predict this year's zone will be between 8,500 square miles and about 9,400 square miles. The actual size of the dead zone will be measured over the summer.
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  • The largest recorded dead zone was found in 2002 when 8,400 square miles of the Gulf was found to lacking sufficient oxygen for most marine life.
  • Eugene Turner, an oceanographer at Louisiana State University, said the dead zone has continued to get larger since it was first noticed and measured in the 1970s. He said the dead zone is getting worse with time.
  • The biggest contributor is the amount of fertilizer — and the nitrates and phosphates in them — that wind up in the Mississippi River each spring and get flushed out to the Gulf.
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