• Dealing with man-made earthquakes

    Between 1967 and 2000, central and eastern United States experienced on average 20 earthquakes above a magnitude 3.0 a year. Between 2010 and 2012, the number of earthquakes above a magnitude 3.0 in these regions has dramatically increased to an average of 100 a year. This increase in earthquakes prompts two important questions: Are they natural, or man-made? And what should be done in the future as we address the causes and consequences of these events to reduce associated risks?

  • Addresses trade-offs between food security, greenhouse gas emissions

    Agriculture and land use change contributed about 1/3 of total human greenhouse gas emissions in the past decade, through crop cultivation, animal production, and deforestation. Improving agricultural productivity could help cut greenhouse gas emissions from agriculture, a new study shows, but sustainable farming methods are key.

  • Lawmakers uneasy about Smithfield’s acquisition by a Chinese food giant

    Lawmakers last week questioned Smithfield Foods CEO Larry Pope about the proposed acquisition of the pork producer by China’s largest meat producer. Lawmakers are worried that the acquisition will negatively affect U.S food supply and agricultural producers.

  • Consolidation expected among large cybersecurrity contractors

    Europe’s largest defense company, BAE Systems, says the number of military contractors selling data protection services to governments will decrease as clients demands for ever-more-sophisticated products  increase.

  • Concrete recycling robot disassembles concrete structures for recycling, reuse

    Current concrete-demolition techniques require a lot of power crushing, separation, and machinery, not to mention the fact that they waste a lot of water in order to prevent dust blooms during operation. A new concrete recycling robot is designed efficiently to disassemble concrete structures without any waste, dust, or separation and enable reclaimed building materials to be reused for new prefabricated concrete buildings. It does so by using a water jet to crack the concrete surface, separate the waste, and package the cleaned, dust-free material.

  • Climate change, severe weather threaten U.S. energy sector: Dept. of Energy

    The U.S. entire energy system is vulnerable to increasingly severe and costly weather events driven by climate change, according to a U.S. Department of Energy report published last week. These climate and weather trends — increasing temperatures, decreasing water availability, more intense storm events, and sea level rise — each independently, and in some cases in combination, could restrict the supply of secure, sustainable, and affordable energy critical to U.S. economic growth.

  • The tax contributions of undocumented immigrants to states and localities

    Opponents of immigration reform argue that undocumented immigrants would be a drain on federal, state, and local government resources if granted legal status under reform. It is also true, however, that the 11.2 million undocumented immigrants living in the United States are already taxpayers, and that their local, state, and federal tax contributions would increase under reform.

  • U.S. defense industry fights budget cuts

    The U.S. defense industry has been fighting budget cuts for two years now. The industry’s effort to prevent sequestration from taking effect has failed, but there is optimism in defense circles that this time the effort may well succeed.

  • U.S. power plants use more coal, bucking the trend toward natural gas

    Power plants in the United States are burning more coal to produce electricity, bucking the trend toward using natural gas, and in the process emitting more greenhouse gasses into the atmosphere, a new government report says. Burning coal to produce electricity was popular just a few years ago, but hydraulic fracturing led to a natural gas boom, driving down gas prices and making natural gas more competitive with coal. The demand for natural gas got so high, however, that its price began to creep up at the same time that the price of coal dropped because of weakening demand for it.

  • Japan to restart nuclear power plants

    Japan’s fifty nuclear power plants were taken off-line in the wake of the 2011 Fukushima nuclear disaster, but the government Prime Minister Shinzo Abe, which took office in December, said it was planning to restart Japan’s nuclear power generation program.

  • Quebec deadly accident revives pipeline vs. rail debate

    The sharp increase in U.S. domestic oil production in the last four years, and the opening by the Obama administration of new areas for drilling, have greatly benefitted U.S. rail companies, which now enjoy the added business of transporting oil from places where pipelines do not exist.U.S. domestic shipments of oil have increased from 9,500 carloads in 2008 to more than 230,000 carloads last year. The deadly Lac-Megantic, Quebec crude-oil train accident revives the debate about the relative safety merits of two modes of transporting oil over long distances – rail vs. pipeline. Proponents of the Keystone XL pipeline project say the Quebec accident will boost support for their cause.

  • Assessing the social, economic effects of Deepwater Horizon spill

    Numerous studies are under way to determine the impacts of the Deepwater Horizon oil spill on the Gulf of Mexico, but the extent and severity of these impacts and the value of the resulting losses cannot fully be measured without considering the goods and services provided by the Gulf, says a new report from the National Research Council (NRC). The report offers an approach that could establish a more comprehensive understanding of the impacts and help inform options for restoration activities.

  • Brazil’s problem: abundant grain, inadequate storage

    Tropical climates that allow for year-round farming would seem to be a tremendous economic advantage, but for corn and soybean farmers in the Brazilian state of Mato Grosso it also poses a problem — an abundance of grain followed by about a 10 percent postharvest loss, partially due to a lack of storage.

  • Oil-devouring microbe communities a mile deep in the Gulf

    The Deepwater Horizon explosion on 20 April 2010, caused the largest marine oil spill in history, with several million barrels of crude oil released into the Gulf of Mexico over the course of three months. Soon after the spill began, a massive oil slick was visible from orbiting satellites, yet once the underwater gusher was sealed, obvious traces of the crude oil disappeared much sooner than nearly all observers predicted. Some of the oil evaporated; some was skimmed off. Microbes “ate” much of the oil as well.

  • U.S. geological carbon dioxide storage potential

    The United States has the potential to store a mean of 3,000 metric gigatons of carbon dioxide (CO2) in geologic basins throughout the country. Technically accessible storage resources are those that can be accessed using today’s technology and pressurization and injection techniques. The most common method of geologic carbon storage involves pressurizing CO2 gas into a liquid, and then injecting it into subsurface rock layers for long-term storage.