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Lancet: Pandemic closer but not inevitable
Prestigious British health journal said “The world has moved closer towards a pandemic, but it is not yet inevitable”
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Experts: Levees will not save New Orleans from Katrina-like storm
National Academy of Engineering panel says that even the strongest levees and flood walls cannot be guaranteed to save New Orleans from another hurricane like Katrina
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Asteroid theory of dinosaur extinction challenged
Three decades ago, the father-son team of Luis and Walter Alvarez offered the asteroid-impact theory as an explanation for the extinction of the dinosaurs 65 million years ago; new geological findings now challenge this theory
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WHO: Swine flu could become pandemic
The growing number of swine flu in Mexico, and the spread of the disease in the United States, lead the World Health Organization to declare the virus “a public health emergency of international concern”
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Seismologist predicts earthquake in south Iran at the end of the month
A Chinese seismologist who relies on unusual cloud formations as a predictor of earthquake says that at the end of the month a powerful earthquake will shake south Iran; debate about basing emergency policy on such predictions intensifies in light of similar predictions before the earthquake in Italy two weeks ago
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Using a long tether to deflect threatening asteroids
An asteroid-tether-ballast system could effectively alter the motion of an asteroid to ensure it missed hitting Earth; the tether, though, is on the long side: between 1,000 kilometers to 100,000 kilometers
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An HSNW conversation with Harold Wolpert, CEO of Avalias
Avalias’s solutions allow an organization to approximate the experience of a disaster, and to help the personnel charged with defense and mitigation to perfect and rehearse their responses to disaster; Harold Wolpert, CEO of Avalias: “Our technology is taken for granted. That’s because it can be”
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Study: Catastrophic rise in sea levels "distinct possibility" this century
New study — based on fluctuations in sea levels the last time Earth was between ice ages, as it is now — shows that oceans rose some three meters in only decades due to collapsing ice sheets
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Earthquakes cannot be predicted with accuracy, say seismologists
Monday’s earthquake in Italy, which has so far claimed the lives of more than 200 people, was made more poignant by claims of an Italian researcher that said he had predicted the quake and warned the authorities — which ignored the warning; scientists say this claim is unfounded, as earthquakes cannot be predicted with accuracy
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Post-Ike ideas for defending Galveston include extending sea wall
Texas A&M oceanographer proposes extending Galveston’s seawall to the island’s West End, building a similar structure along Bolivar Peninsula, and constructing massive Dutch-like floodgates at the entry to Galveston Bay; oceanographer says his proposed wall and gate system could repel most surges
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Mathematicians provide new insight into tsunamis
The number and height of the tsunami waves hitting the shoreline depends critically on the shape of the initial surface wave in deep water; from this it is possible to work out whether a “trough” or a “peak” is the leading wave
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New ideas for deflecting Earth-threatening asteroids
As scientists use better equipment to make more accurate observations of space, they find more Earth-threatening objects loitering in Near Earth Orbit; a debate is growing as to the best method to deal with this threat
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New Madrid fault system may be shutting down
Researchers find that the New Madrid fault system, which includes parts of Illinois, Indiana, Tennessee, Arkansas, and Kentucky, is shutting down; major earthquake in the region may be avoided
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New York City is especially vulnerable to rise in sea level
Although low-lying Florida and Western Europe are often considered the most vulnerable to sea level changes, the northeast U.S. coast is particularly vulnerable because the Atlantic meridional overturning circulation (AMOC) is susceptible to global warming
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Beads behavior may help in avalanche prediction
Scientists blame the seeming impossibility of predicting the next big avalanche or earthquake on the inherent unpredictability of complex systems; a unique experiment, however, suggests that this idea may be wrong
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The long view
Postfire Debris Flows May Become Predictable, Thanks to a New Study
Scientists at Los Alamos have developed a model framework to better predict events such as landslides. The framework is making simulations faster and more accurate, which in turn will improve safety for communities that are at risk of their infrastructure being washed away.