• Ancient catastrophic drought a warning about current warming trends

    Extreme megadrought in Afro-Asian region likely had consequences for Paleolithic cultures; the records show that one of the most widespread and intense droughts of the last 50,000 years or more struck Africa and Southern Asia 17,000 to 16,000 years ago; the “H1 megadrought” was one of the most severe climate trials ever faced by anatomically modern humans; Africa’s Lake Victoria, now the world’s largest tropical lake, dried out, as did Lake Tana in Ethiopia, and Lake Van in Turkey; the Nile, Congo, and other major rivers shriveled

  • Insider threat problem topic of a GovSec panel

    A recent batch of leaked cables from the State Department reveals concerted efforts by terrorist organizations to obtain WMDs and the danger that “insider threats” pose at facilities that house radioactive materials; in September 2009 two employees at the Rossing Uranium Mine in Namibia smuggled nearly half a ton of yellowcake out of the facility; the pair was eventually caught, but 550 pounds were not intercepted and have gone missing; another cable expressed fears that an employee working in one of Pakistan’s nuclear facilities could “gradually smuggle enough material out to eventually make a weapon”; these incidents are but two examples of the growing danger insiders, motivated by money or ideology, pose

  • NZ earthquake illustrates risks for U.S. west coast

    The recent 6.3 magnitude earthquake in Christchurch, New Zealand, killed many more people and caused far more damage than the September 2010 7.1 magnitude earthquake which struck the same area; the reason: even though this earthquake was weaker than last year’s event, it was much shallower; was situated directly under Christchurch; hit during the lunch hour when more people were exposed to damage; and shook sediments that were prone to “liquefaction,” which can magnify the damage done by the ground shaking; scientists say the same description nicely fits many major cities and towns in Washington, Oregon, California, and British Columbia

  • Danger building up behind aging, vulnerable dams

    Of the U.S. 85,000 dams, more than 4,400 are considered susceptible to failure; a 2009 report put the cost of fixing the most critical dams — where failure could cause loss of life — at $16 billion over twelve years, with the total cost of rehabilitating all dams at $51 billion; those figures do not include dams among the approximately 3,000 that are owned by the federal government; the Army Corps of Engineers, for example, says that more than 300 of the roughly 700 dams it is responsible for need safety-related repairs, and estimates the total fix-up bill at about $20 billion

  • Satellite system to provide earlier earthquake warnings

    British and Russian scientists are planning a satellite system that will monitor seismic activity from space in the hope of one day predicting the occurrence of earthquakes and volcanic eruptions.
    The TwinSat project will put one micro-sized and one nano-sized satellite into low earth orbit some 400 kilometers apart, which will work in unison to collect and interpret electromagnetic signatures from the ground

  • Haiti's quake damage yields better building codes

    In the aftermath of the 7.0 magnitude earthquake that shook Haiti last year and killed more than 300,000 people, University of Arizona researchers descended upon the country’s capital to study buildings that survived the quake; researchers documented damaged buildings to develop a sophisticated three dimensional model; they are working to develop stricter building codes to ensure that buildings can withstand earthquakes in the future; their focus is on designing low-cost easy to implement localized solutions; buildings that were not built to withstand earthquakes were the primary cause of death in the disaster

  • Industry wants current safety law extended rather than see it toughened

    Before the House Homeland Security committee, Timothy J. Scott, the chief security officer of Dow Chemical Co., urged Congress permanently to reauthorize the Chemical Facility Anti-Terrorism Standards (CFATS) bill; under CFATS chemical facilities are required to address a range of critical security concerns including protecting facilities against attacks and preventing the theft of dangerous chemicals; currently, more than 35,000 facilities that use or store chemicals are required to meet CFATS regulations; DHS has worked with facility owners to mitigate risks with custom developed security plans at more than 2,000 “high risk” sites

  • Rising seas will affect major U.S. coastal cities by 2100

    The Gulf and southern Atlantic coasts will be particularly hard hit by rising sea levels, research predicts. Miami, New Orleans, Tampa, Florida, and Virginia Beach, Virginia could lose more than 10 percent of their land area by 2100

  • Boston has new pot-hole weapons

    In a typical year, the city of Boston fills about 19,000 potholes; the city now has two new pot-hole weapons in its arsenal: a $151,300 Pro-Patch Pothole Patcher truck, and a new iPhone and Android app, called Street Bump, which would automatically report potholes to the city by sensing when a car has hit a bump (the app has not been released yet, but test-drives are already being conducted)

  • Be prepared: earthquakes big and small

    The February issue of the Bulletin of the Seismological Society of America offers insights into small seismic problems — and big ones — the United States faces; there were a series of small tremors in the Dallas-Forth Worth area — home to more than four million residents that has experienced no previous earthquakes in historic time; the Coachella Valley section of the San Andreas fault, between San Gorgonio Pass and the Imperial Valley, is the only portion of the fault which has not ruptured in a major earthquake during historical time; this is not good news: This long period of quiescence suggests that an unusually large amount of elastic strain has built up along the southern San Andreas segment, making it likely to produce a large to great (Mw7-8) earthquake in the near future

  • Hoover Dam is safe from hackers

    In response to the debate over the controversial Senate Internet “kill switch” bill, the U.S. Bureau of Reclamation refuted a central argument that the law’s proponents have been using; proponents of the bill have often stated the need for the bill because terrorists could hack into the system and open the Hoover Dam’s floodgates; the dam is not connected to the Internet and has several physical and technological safeguards that prevent the floodgates from opening; the proposed bill would authorize the president to sever critical infrastructure from the Internet in the event of a cyber attack; critics say the bill could violate First Amendment rights

  • Melting glaciers threaten Peru

    Rising temperatures have caused glaciers in Peru to melt at alarming rates; Peru depends heavily on rivers fed by glaciers to provide drinking water, irrigation, and electricity; some scientists estimate that in ten years, whole glaciers will disappear entirely from the Andes; millions of Peruvians depend entirely on the glacier fed rivers as their primary source for water; the United States fears that water, food, and power shortages in Peru could cause stability and spark conflict across the region

  • Counterterror laws hobble monitoring of water supplies

    Laws designed to protect the U.S. water supply are making it difficult for communities to maintain proper oversight over water companies and their use of water; the DHS has evidence that al Qaeda was looking to disrupt or contaminate the U.S. water supply; environmentalists who are concerned over water shortages or resource usage are having difficulty obtaining any information; officials admit that the laws are clumsy and are currently reviewing a system to make more data publicly available while protecting sensitive information like the location of wells

  • Protecting vital infrastructure as sea levels rise

    As the world gets warmer, sea levels are rising; it has been happening at a snail’s pace so far, but as it speeds up more and more low-lying coastal land will be lost; at risk are many of the world’s cities and huge areas of fertile farmland; the sea is set to rise a meter or more by the end of this century, swamping much vital infrastructure and displacing hundreds of millions of people; scientists are looking at various ways to slow down or reverse the rise in sea levels — and of ways of coping with its consequences