• Scientist offers better ways to engineer Earth's climate to blunt global warming

    A Canadian scientist suggests two novel geoengineering approaches to limit the effects of climate change on Earth: “levitating:” engineered nano-particles, and the airborne release of sulphuric acid; both ideas are more refined than, and have advantages over, another geoengineering concept developed by geoengineers: mimicking volcanic eruptions by injecting massive amounts of sulphur dioxide gas into the upper atmosphere

  • Study: dinosaurs killed off by more than one asteroid impact

    The scientific consensus about the extinction of the dinosaurs 65 million years ago — along with more than half of other species then alive on Earth — is that an asteroid hit at Chicxulub in the Gulf of Mexico, creating a crater more than 180 km across and sending tons of smoke and soot into the atmosphere; scientists now say that the Chicxulub impact began the process of killing off the dinosaurs, but that the coup de grace occurred two to five thousand years later, with an asteroid impact in the Boltysh crater in the Ukraine

  • Are New Orleans' storm defenses strong enough?

    The U.S. Army Corps of Engineers has invested $14.45 billion in bolstering New Orleans’ defenses against storms, and there is a consensus that the city’s protection now is better than they were on 29 August 2005, when Katrina made landfall, and its 8.5-meter surge went on to overpower a poorly constructed and poorly connected levees and flood walls; critics say, though, that the better designed and built levees do not take into account the stronger hurricanes which climate changes causes, and that the best defenses against hurricanes — coastal marshes, wetlands, and barrier islands — are being eroded and lost at an alarming rate as a result of urban development and the Corps’ own engineering approach to harnessing and taming the Mississippi River

  • Infrared camera to identify size of dangerous asteroids

    The 1908 Tunguska event that flattened over 2,000 square kilometers in Russia was by some basic estimates caused by an asteroid only sixty meters in diameter; the impact of even a 1-kilometer-sized NEO would probably destroy an average state

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  • Earthquake-proof bed patented

    A Chinese inventor patented a design for an earthquake-proof bed; if your house collapses on top of you, the bed’s thick frame can support a roof — and the extra space inside its thick boards can store essential foodstuffs like canned goods and life sustaining water

  • DHS drill offers rare look at disaster preparedness

    Anniston, Alabama, Center for Domestic Preparedness (CDP) offered another glimpse into disaster preparedness, this time focuses on disaster health care; a disaster drill observed by the media saw health care workers from throughout the United States acting out an explosion at a battery acid factory

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  • New Florida museum is glass-covered hurricane-proof fortress

    The new Salvador Dali Museum in St. Petersburg is designed to withstand category 5 hurricanes; the roof is 12-inch thick solid concrete; the walls are even thicker, at eighteen inches; the glass, which makes up big sections of the outside of the museum, can hold up to a category 3 hurricane; if that glass breaks, letting rain, wind, and debris into the facility, the art will still be safe: storm doors will shield the galleries on the third floor, and the vault, which is on the second floor (all of the art is placed on the second and third floors, above the 30-foot storm surge of a category 5 storm)

  • New levee design, construction materials tested in Louisiana

    Since Katrina, attention has been riveted on $14 billion worth of federal projects to rebuild the deficient hurricane levee system so it can better defend from surges out of lakes Borgne and Pontchartrain; the Army Corps of Engineers plans to start experimenting with a new construction method, which relies on a mix of lime and clay to build the test levee higher without widening the levee base; this method of raising existing river levees can be done faster than a standard raising and will not require buying additional land to expand the base; mixing lime and clay and water will not produce concrete, which has a measured strength of 3,000 pounds per square inch, or psi, the mixture will have a strength of 80 to 120 psi — substantially greater than the 3 to 5 psi of a compacted clay levee

  • Disaster response experts call for "red-helmet brigade"

    Experts say that the world need to be better prepared to respond to natural disasters such as the Pakistan floods of the Haiti earthquake; they say that an organization such as the UN Office for the Coordination of Humanitarian Affairs should establish a special response unit to set up a computerized database that identifies all available assets routinely needed in an emergency — emergency personnel, medical personnel, water, non-perishable food stuffs, extraction machinery, temporary shelters, and field hospitals; some supplies could be held in locations around the world, ready to be dispatched as soon as disaster assessment experts working for a central command and control center arrive on the scene of a catastrophe

  • China, Pakistan floods; Haiti earthquake: not merely "natural" disasters

    The recent disasters in Pakistan, China, and Haiti have done more than kill thousands and displace millions: they have raised questions about whether the modifier “natural” — as in “natural disaster” — is accurate in describing the sources and scope of the catastrophes; these and other recent disasters, in other words, raise questions about how much of the damage caused comes from the forces of nature and how much is the result of human activity; experts say that a major contributing factor to the scope of these disasters are development decisions which are too often controlled by wealthy and corrupt elites who have no interest in protecting people who have been marginalized by poverty

  • Wild fires in Russia may shower region with Chernobyl-era radioactive particles

    Large forested areas in Bryansk were contaminated when the Chernobyl nuclear power plant’s Reactor No. 4 exploded during a pre-dawn test on 26 April 1986, spewing radioactive clouds over much of the western Soviet Union and northern Europe; radioactive particles settled into the soil, and environmentalists have warned that they could be thrown up into the air once again by wildfires and blown into other areas by the wind; the death rate in Moscow has doubled to 700 people a day

  • Cholera spreads in flood-ravaged Pakistan

    With stagnant water throughout Pakistan, water-borne diseases such as gastroenteritis, malaria, and typhoid, now threaten the nation; there are reports of diarrhoea and cholera among the hundreds of thousands left homeless, and food and drinking water are in short supply

  • Good business: Developers make buildings more disaster-secure than building code requires

    A Florida developer hopes to get more business by making his building hurricane-proof; with debris-resistant windows on all thirty-five of its stories, the developer says the building would withstand a Category 5 hurricane without significant damage; the extra hurricane proofing built into the Miami building shows that sometimes the private market can overtake the public sector when it comes to building design and safety standards; for example, in New York and Washington, D.C., some developers have put in anti-terrorism safeguards that exceed building codes

  • Keeping trains on track

    Tel Aviv University helps develop early-warning hazard system for the world’s railways; researchers are collecting high-tech sensing data from satellites, airplanes, magnetic and soil sensors, and unmanned aircraft to devise a solution that will provide a reliable early-warning system for train operators; the solution will help keep trains on track during natural disasters and acts of terrorism

  • 25,000 new asteroids -- 95 in near Earth orbit -- found by NASA's sky mapping

    NASA’s newest space telescopes has spotted 25,000 never-before-seen asteroids in just six months; 95 of those are considered near Earth objects — which means, in the language of astronomy, that they are within thirty million miles of Earth; the telescope also sighted fifteen new comets and confirmed the existence of twenty brown dwarfs — stellar objects that are bigger than a planet but much smaller than a star; the full celestial catalog of what is out there will not be released to the public until next year after NASA has had time to process the images and flag false alarms