Earth Changes
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©AP Photo/Bill Haber |
Water is pushed over the flood wall into the upper 9th Ward from the effect of Hurricane Gustav, in New Orleans, Monday, Sept. 1, 2008. |
Wind-driven water was sloshing over the top of the Industrial Canal's floodwall, but city officials and the Army Corps of Engineers said they expected the levees, still only partially rebuilt after Hurricane Katrina, would hold. The canal broke during hurricanes Betsy and Katrina, flooding St. Bernard Parish and the Lower 9th Ward.
"We are seeing some overtopping waves," said Col. Jeff Bedey, commander of the Army Corps of Engineers' hurricane protection office. "We are cautiously optimistic and confident that we won't see catastrophic wall failure."
Of more immediate concern to authorities was a barge that broke loose from its moorings and crashed into two anchors scrapped ships. The was no damage to the canal.
The National Hurricane Center in Miami said Gustav hit around 10:30 a.m. EDT Monday near the Cocodrie, a low-lying community in Louisiana's Cajun country about 72 miles southwest of New Orleans. Forecasters once feared a storm that chased nearly 2 million from the coast would arrive as a devastating Category 4 with much more powerful winds.
While New Orleans avoided a direct hit, the storm could be devastating where it did strike. For most of the past half century, the bayou communities that thrived in the Barataria basin have watched their land literally disappear. A combination of factors - oil drilling, hurricanes, river levees, damming of rivers - have destroyed marshes and swamps that once flourished in this river delta.
As Senators Obama and McCain vie with the leaders of the European Union to promise 50, 60, even 80 per cent cuts in "carbon emissions", it is clear that to realise even half their imaginary targets would necessitate a dramatic change in how we all live, and a drastic reduction in living standards.
All this makes it rather important to know just why our politicians have come to believe that global warming is the most serious challenge confronting mankind, and just how reliable is the evidence for the theory on which their policies are based.
Researchers from the University of Hawaii at Manoa (UHM), Scripps Institution of Oceanography at UC San Diego, and the U.S. Geological Survey (USGS) Hawaiian Volcano Observatory have now discovered that the 2007 dike intrusion was not the only action going on: the dike also triggered a "slow earthquake" on Kilauea's south flank, demonstrating how magmatism and earthquake faulting at Kilauea can be tightly connected.
Slow earthquakes are a special type of earthquake where fault rupture occurs too slowly (over periods of days to months) to produce any felt shaking. Slow earthquakes of magnitude 5.5-5.7 have been previously found to periodically occur on the flanks of Kilauea, and have been identified by ground motion data on Global Positioning System (GPS) stations. A general understanding of slow earthquake initiation, however, is still unresolved.
The assessment, presented today at the Baltic Sea Festival, graded the countries on how well they are doing in six separate areas - biodiversity, fisheries, hazardous substances, marine transport and eutrophication - and on how they have succeeded in developing an integrated sea-use management system.
The best grade (an F for just 46 per cent) was received by Germany, followed by Denmark (41 per cent) and the worst were Poland (25 per cent) and Russia (26 per cent).
"It is a shame no country could be given a satisfactory total score," said Lasse Gustavsson, CEO of WWF Sweden. "The Baltic Sea is influenced by a multitude of human activities, regulated by a patchwork of international and national regulations and authorities.