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Aussies worry about rising sea levels
About 80 percent of Australians live in coastal areas, and a new parliamentary report recommends new laws banning further development in coastal regions
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Cosmic entropy could be 100 times greater than previously thought
Entropy increases as the number of ways the system can be arranged microscopically without changing the external appearance increases; new study shows that cosmic entropy is a 100 times greater than earlier estimates; the entropy of the universe must be below the maximum theoretical value or life and other complex phenomena will cease to exist; as the entropy gradually increases it will eventually approach the theoretical maximum, a state many physicists have called the heat death of the universe; the new study thus shows that our universe is closer to its death than previously thought
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Tornado threat increases as Gulf hurricanes get larger
New study predicted exactly the number of hurricanes seen for Hurricane Ike: 33; tornadoes that occur from hurricanes moving inland from the Gulf Coast are increasing in frequency
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Without water reform Asia will face food shortage by 2050
There are three options for meeting the food needs of Asia’s population, which will expand by one-and-a-half billion people over the next forty years: The first is to import large quantities of cereals from other regions; the second to improve and expand rainfed agriculture; and the third to focus on irrigated farmlands
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Massive earthquakes shake scientific thought
Experts who dismissed notions that far-away quakes could be linked are beginning to think again after huge tremors rocked Samoa and Indonesia on the same day, followed by another major convulsion in Vanuatu
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New Bay Bridge span designed to endure major quake
Twenty years ago a 250-ton section of the Bay Bridge fell into the water as a result of a 6.9 magnitude earthquake; the new bridge design will be able to withstand the largest plausible earthquake to occur within a 1,500-year period
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Asteroid collision: How to defend Earth, II
Asteroid impacts are much rarer than hurricanes and earthquakes, but they have the potential to do much greater damage; moreover, what if an asteroid hits Earth in the Middle East or the Asian subcontinent? Such an event could be misinterpreted as a nuclear attack — both produce a bright flash, a blast wave, and raging winds; the result may be a nuclear war
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How high is the risk of civilization-killing asteroids?
Planetary bombardments: scientists at a planets meeting discuss the risks of an asteroid colliding with Earth; researchers are worried about asteroid Apophis, which will come uncomfortably close to Earth on 13 April 2029; one scientist said that “It’s 10 times more likely that an unknown asteroid will slam into us from behind while you’re looking at Apophis”
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Asteroid collision: How to defend Earth, I
There are thousands of Near Earth Objects (NEOs) orbiting Earth; some of them are of a civilization-ending size, others are smaller — they will take out “only” a country or a city were they to collide with Earth; scientists say we should focus our minds on this danger
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Is California's Big One coming?
In 1992 and in 2004, remote earthquakes caused changes to the San Andreas fault; in both cases, there were distinct changes in the movement of fluids and an increase in the frequency of micro-earthquakes deep within the fault below Parkfield; what will be the effect on the fault of the recent Sumatra earthquake?
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Corps asked to scrap floodgate plans in Belle Chasse, Louisiana
There is a debate in Louisiana about the best way to protect homes in the Jesuit Bend area: the Army Corps of Engineers wants to build a floodgate — but this would leave some 1,400 homes unprotected; residents prefer an 8-mile levee
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New Orleans storm pumps do not protect city
The Army Corps of Engineers quickly installed new storm control pumps in New Orleans in the months after Katrina; trouble is, these pumps do not protect the city, the the Corps could have saved $430 million in replacement costs by buying proven equipment
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How life will survival in a post-apocalypse blackout
What if asteroid impacts, massive volcanic eruptions, or large-scale wildfires were to plunge our planet into abnormal darkness” It happened several times in the past; life will continue with a little help from organisms that can switch to another source of energy while they wait for sunlight to pierce the darkness once more
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Mega-quake could strike near Seattle
New study shows that two massive tectonic plates colliding 25 miles or so underneath Washington state’s Puget Sound basin; findings suggest that a mega-earthquake could strike closer to the Seattle-Tacoma area, home to some 3.6 million people, than was thought earlier
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"Active cloak" protects buildings from earthquakes
Researchers say real objects could be cloaked by active cloaking — which means the technology uses devices that actively generate electromagnetic fields rather than being composed of “metamaterials” (exotic metallic substances) that passively shield objects from passing electromagnetic waves
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More headlines
The long view
Using Drone Swarms to Fight Forest Fires
Forest fires are becoming increasingly catastrophic across the world, accelerated by climate change. Researchers are using multiple swarms of drones to tackle natural disasters like forest fires.
How Climate Change Will Affect Conflict and U.S. Military Operations
By Doug Irving
“People talk about climate change as a threat multiplier,” said Karen Sudkamp, an associate director of the Infrastructure, Immigration, and Security Operations Program within the RAND Homeland Security Research Division. “But at what point do we need to start talking about the threat multiplier actually becoming a significant threat all its own?”