• Tornado’s strength explains number of casualties more than number of people in twister’s way

    New research shows that the strength of a tornado has a significantly larger effect than population on the number of casualties. Using a regression model, researchers found that on average a doubling of the population under the path of a tornado leads to a 21 percent increase in the casualty rate, while a doubling of the energy dispersed by the tornado leads to a 33 percent increase in the casualty rate.

  • Creating high-speed internet lane for emergency situations

    In a disaster, a delay can mean the difference between life and death. Emergency responders don’t have time to wait in traffic — even on the congested information superhighway. Researchers are developing a faster and more reliable way to send and receive large amounts of data through the internet. By a creating a new network protocol, called Multi Node Label Routing protocol, researchers are essentially developing a new high-speed lane of online traffic, specifically for emergency information.

  • AI to aid in humanitarian efforts

    Mobile phones are one of the fastest growing technologies in the developing world with global penetration rates reaching 90 percent. However, the fact that most phones in developing countries are pre-paid means that the data lacks key information about the person carrying the phone, including gender and other demographic data, which could be useful in a crisis. Researchers have developed an AI algorithm to accurately predict the gender of pre-paid mobile phone users, so that emergency response teams would have better information about those affected by disasters.

  • Tornado damage impact could triple in coming decades

    Tornadoes are one of the most unpredictable weather phenomena on Earth. Each year the United States, home to more tornadoes than any other country, sustains billions of dollars of damage, death, injuries, and disruption from the violent storms. Scientists say that the potential for annual tornado impact magnitude and disaster could triple by the end of the twenty-first century.

  • New tool could help predict, prevent surging waters in flood plains

    A group of international scientists studying China’s Yellow River has created a new tool that could help officials better predict and prevent its all-too-frequent floods, which threaten as many as eighty million people. The tool — a formula to calculate sediment transport — may also be applied to studying the sustainability of eroding coastlines worldwide.

  • Tipping points: When natural or social systems reach a point of no return

    A tipping point is a critical threshold at which a dynamical system undergoes an irreversible transformation, typically owing to a small change in inputs or parameters. This concept is very broad and can refer to the extinction of an animal or a plant species, the depletion of a water source, or the financial collapse of an institution, among many other natural and social phenomena. Researchers provide a better understanding of the characteristics of this point of no return and what happens to a system after its occurrence.

  • Helping power utilities and others better plan for the future

    If you’re an electric utility planning a new power plant by a river, it would be nice to know what that river will look like twenty years down the road. Will it be so high that it might flood the new facility? Will the water be so low that it can’t be used to cool the plant? Generally, such projections have been based on records of past precipitation, temperature, flooding and other historical data. But in an era when temperature and precipitation are changing rapidly, historical patterns won’t do you much good. A new initiative by the U.S. Department of Energy’s (DOE) Argonne National Laboratory combines climate data and analysis with infrastructure planning and decision support, promises real help.

  • Wastewater injection rates triggered Oklahoma's largest earthquake

    The 3 September 2016 magnitude 5.8 Pawnee quake, felt widely across Oklahoma, is the largest earthquake recorded in the state since the 1950s. Most Oklahoma earthquakes since 2009 are thought to have been triggered by wastewater produced by oil and gas drilling that has been injected back into the ground – and a new report says that changes to the rate of wastewater injection in disposal wells may have contributed to conditions that led to the Pawnee earthquake.

  • Radar simulator helps characterize scattering of debris in tornadoes

    Researchers have developed the first numerical polarimetric radar simulator to study and characterize the scattering of debris particles in tornadoes. “An improved understanding of what weather radars tell us about tornado debris can help provide more accurate tornado warnings and quickly direct emergency personnel to affected areas,” says one researcher.

  • Europe’s economy vulnerable to global water scarcity, drought

    A new study of the impacts that increasing water scarcity and drought may have on the European Union’s (EU) economy finds that around 38 percent of the EU’s water demand lies outside its borders because many of the goods consumed by its citizens or used by its businesses are produced abroad. “The highest risk that the European meat and dairy sector will face due to climate change and weather extremes lies outside its borders. This is because it is highly dependent on soybean imports from locations that are vulnerable to water scarcity and drought,” says one expert.

  • Dangerous mix: Climate change, tornadoes, and mobile homes

    Tornadoes and mobile homes do not mix to begin with, but throw in the volatility of climate change and the potential for massive property damage and deaths is even higher in coming decades. The number of mobile homes in the United States has risen dramatically in the past 60 years, to about 9 million currently. Meanwhile, the United States is the most tornado-prone country in the world, with an average of 1,200 twisters per year.

  • Citizen science to aid in disaster response

    After natural disasters, communities need fast access to damage assessment maps to aid relief, recovery and rebuilding efforts. Researchers have developed a new way to link volunteers around the world with a way to help communities after major disasters, aiming to aid disaster damage mapping, providing much-needed real-time data to help communities recover and rebuild after disaster. For the next few weeks they are testing the new system – inviting the public to take part.

  • Trade-offs between short- and long-term policies dealing with greenhouse gases

    Scientists and policymakers use measurements like global warming potential to compare how varying greenhouse gases, like carbon dioxide and methane, contribute to climate change. Yet, despite its widespread use, global warming potential fails to provide an accurate look at how greenhouse gases affect the environment in the short and long-term, according to researchers. The researchers argue that because global warming potential calculates the warming effects of greenhouse gases over 100 years, they discount the effects of any greenhouse gas that disappears from the atmosphere after a decade or two. This masks the trade-offs between short- and long-term policies at the heart of today’s political and ethical debates.

  • Natural flood-prevention measures valuable, but not “a silver bullet”

    Natural measures to manage flooding from rivers can play a valuable role in flood prevention, but a lack of monitoring means their true potential remains unclear, researchers say. Such measures, including river restoration and tree planting, aim to restore processes that have been affected by human activities such as farming, land management and house-building.

  • Louisiana’s westernmost, low-lying regions on track to drown under sea level rise

    Without major efforts to rebuild Louisiana’s wetlands, which serve as bulwarks against waves and rising seas, the state’s coast has little chance of withstanding the accelerating rate of sea level rise, a new study concludes. Wetlands can provide crucial protection from rising seas, especially in Louisiana’s low-lying westernmost areas, but the habitats have faced years of decline, mostly from coastal erosion. The erosion results in part from levees that have been built along the Mississippi River. The levees block mud deposits that flow to and underlie much of the Louisiana coast. The land, cut off from new building material, begins to sink.