• U.S. mid-continent seismic activity linked to high-rate injection wells

    A dramatic increase in the rate of earthquakes in the central and eastern U.S. since 2009 is associated with fluid injection wells used in oil and gas development, says a new study. The number of earthquakes associated with injection wells has skyrocketed from a handful per year in the 1970s to more than 650 in 2014. The increase included several damaging quakes in 2011 and 2012 ranging between magnitudes 4.7 and 5.6 in Prague, Oklahoma; Trinidad, Colorado; Timpson, Texas; and Guy, Arkansas. “We saw an enormous increase in earthquakes associated with these high-rate injection wells, especially since 2009, and we think the evidence is convincing that the earthquakes we are seeing near injection sites are induced by oil and gas activity,” says one of the study’s authors.

  • Risk of major sea level rise in Northern Europe

    Global warming leads to the ice sheets on land melting and flowing into the sea, which consequently rises. Sea level rise is a significant threat to the world’s coastal areas, but the threat is not the same everywhere on Earth — it depends on many regional factors. New calculations by researchers from the Niels Bohr Institute show that the sea level in Northern Europe may rise more than previously thought. There is a significant risk that the seas around Scandinavia, England, the Netherlands, and northern Germany will rise by up to about 1.5 meters in this century.

  • Studying Louisiana's wetlands -- a natural barrier between land and sea

    NASA recently completed an intensive study of Louisiana Gulf Coast levees and wetlands, making measurements with three advanced imaging instruments on two research aircraft. NASA instruments fly over the Gulf Coast one to three times per year to keep consistent records of ground subsidence — the gradual sinking of an area of land — which can compromise the integrity of roads, buildings and levee systems. Scientists also closely monitor vegetation changes in the coastal wetlands to better understand how to preserve them. The marshlands not only are home to a delicate ecosystem, but also serve as a natural barrier between land and sea.

  • Overstretched global food system vulnerable to disruptive shocks: Lloyd's report

    The vulnerability of the overstretched global food system to sudden shocks, and the wide repercussions for communities, businesses, and governments was highlighted yesterday by a report published by Lloyd’s. The reports highlights the far-reaching economic and humanitarian consequences that disruptions such as weather catastrophes or plant pandemics – many of which are exacerbated by climate change — could have on the global economy. This series of shocks has the potential to trigger food riots in urban areas across the Middle East, North Africa, and Latin America, leading to wider political instability and knock-on effects for a wide range of businesses.

  • National Flood Insurance Program to focus more on victims’ needs

    Roy Wright, the newly appointed director of the National Flood Insurance Program (NFIP), said that he will push it to better focus on the welfare and individual needs of disaster victims, following years of scandal within the organization. Wright, who will preside over the federal program beginning this week, criticized the insurance loopholes and complicated rules of private insurance companies that were perpetuated by the NFIP to “nickel-and-dime” policyholders and undermine their abilities to rebuild following a flood.

  • Drone center provided drones to survey flood damage, assist search and rescue efforts

    The town of Wimberley, about thirty miles southwest of Austin, was struck on 25 May by heavy flooding along the Blanco River. More than 400 homes were destroyed. Four deaths were reported in Hays County and at least eight persons were reported missing. Nineteen storm-related deaths were reported in Texas and Oklahoma and fourteen in Mexico. A test-site research team from the Lone Star Unmanned Aircraft Systems Center of Excellence & Innovation (LSUASC) at Texas A&M University-Corpus Christi (TAMUCC) was dispatched to Wimberley, Texas, on 26 May to conduct low-altitude research flights in the wake of devastating flooding.

  • Gifts of cash may be best way to rebuild lives of disaster victims

    Historically, the orthodox approach to helping people in humanitarian emergencies has been to give them things – food, water, hygienic supplies and so on. There’s an argument for this approach, but also a very real risk: that we give people the wrong things. And the network of contractors and subcontractors often used to administer this “in-kind” aid is sufficiently complex and opaque that we can’t really tell how we’re performing. As researchers have begun conducting rigorous experimental tests of anti-poverty strategies (“randomized controlled trials”), seeking reliable answers to the question “what works?” a consistent finding has been that simply giving money directly to individuals works quite well. Multiple studies have found that when people in need receive cash and the freedom to spend it as they choose, the results are impressive.

  • Texas flood exposes serious weaknesses in high-tech warning systems

    The Memorial Day weekend flood in Texas was a test for regional flood warning systems employed by local and federal emergency agencies. Hays County officials issued three “reverse 911” notifications to residents residing in homes along the Blanco River. The National Weather Servicesent out flash flood warnings to registered local cellphones. Yet the disaster flood, which caused tens of millions of dollars in property damage in Blanco and Hays counties and killed more than a dozen people, exposed serious weaknesses in high-tech warning systems.

  • Fear no asteroid: An interview with astronomer Judit Györgyey-Ries

    Should we fear that someday a huge asteroid would fulfill one of the apocalyptic scenarios envisaged for Earth, when a space rock smashes into our planet causing a global disaster? Judit Györgyey-Ries, an experienced astronomer at the University of Texas’ McDonald Observatory becalms the worried doomsdayers with a scientific approach to the matter.

  • Floods as tools of war: Many floods in the Netherlands in past 500 years were deliberately caused during wartime

    A new study shows that, from 1500 until 2000, about a third of floods in southwestern Netherlands were deliberately caused by humans during wartimes. Some of these inundations resulted in significant changes to the landscape, being as damaging as floods caused by heavy rainfall or storm surges. The study shows that floods in the Netherlands were used as a weapon as recently as the 1940s. “Strategic flooding during the Second World War undertaken by the Germans remained purely defensive, while the Allied flooding of the former island of Walcheren in the southwest of the country sped up the Allied offensive,” says the study’s author.

  • Florida better prepared for hurricane season

    Florida’s coastal communities are far more prepared for hurricane season than they were a decade ago, when eight hurricanes swept through the state during back-to-back seasons causing $33 billion in insurance claims. The state’s coastal communities have added an additional 1.5 million people and almost a half-million new houses, but experts say the risk of catastrophic destruction has not increased because builders are doing a better job of constructing new homes with hurricane resistant materials.

  • Better flood-warning system

    On Memorial Day evening, Houston, Texas suffered massive flooding after getting nearly eleven inches of rain in twelve hours. Rice University civil engineering professor Philip Bedient is an expert on flooding and how communities can protect themselves from disaster. He directs the Severe Storm Prediction, Education and Evacuation from Disasters Center (SSPEED) at Rice University. Bedient designed the Flood Alert System — now in its third version — which uses radar, rain gauges, cameras, and modeling to indicate whether Houston’s Brays Bayou is at risk of overflowing and flooding the Texas Medical Center. He says more places need those types of warning systems.

  • Making building hover to protect them from earthquake

    Los Gatos California-based Arx Pax, creator of the Hendo Hoverboard and Magnetic Field Architecture (MFA), yesterday announced that it is integrating the ShakeAlert earthquake early-warning software into its patented three-part foundation system, which the company says is a more cost effective means of decoupling an object or building from the earth to provide real protection against earthquakes, floods, and sea-level rise. The company is now beta testing isolation of structures from unwanted earth movement.

  • Should I stay or should I go: timing affects hurricane evacuation decisions

    When a hurricane is gathering strength offshore, people in its possible line of fire still need to decide whether or not to evacuate to safer ground. Emergency managers are charged with ensuring the safety of the population. “Prepare for the worst” is probably a good philosophy in most circumstances, but not in the case of evacuation for a hurricane many days away, when the cost of mobilizing is high and the probability of it being needed is very low. The government and media also grapple with not wanting to be unnecessarily alarmist. The correct philosophy is “know what the worst case could be and be prepared to face it if it comes to pass.” When an evacuation order is issued, it’s usually in a very compressed time frame — but that’s ok as long as people are prepared. If people plan three to five days ahead, knowing that there is a small but real chance they will be asked to evacuate and a small but real chance of death if they do not, they can be ready when the definitive order comes in.

  • App offers St. Petersburg residents information on flood levels, storm surges

    Pinellas County, Florida, will unveil a new Storm Surge Protector computer application which would provide residents of St. Petersburg with realistic views of potential flood levels as the 2015 hurricane season approaches. The app will allow people to enter any Pinellas County address and see the property’s evacuation zone and get an animated view of the structure and the water levels to expect in the area under a range of hurricane categories.