• Weather extremes caused by giant waves trapped in the atmosphere

    The world has suffered from severe regional weather extremes in recent years, such as the heat wave in the United States in 2011 or the one in Russia 2010, coinciding with the unprecedented Pakistan flood. Behind these devastating individual events there is a common physical cause, propose scientists in a new study. The study suggests that man-made climate change repeatedly disturbs the patterns of atmospheric flow around the globe’s Northern hemisphere through a subtle resonance mechanism.

  • Russian fireball largest ever detected by nuke monitoring organization

    Infrasound has been used as part of the Comprehensive Nuclear Test Ban Treaty Organization’s (CTBTO) monitoring tools to detect atomic blasts since April 2001 when the first station came online in Germany. Infrasonic waves from the meteor that broke up over Russia’s Ural Mountains last week were the largest ever recorded by the CTBTO’s International Monitoring System.

  • Climate change as a national security issue

    In a new report, Harvard researcher is pointing toward a new reason to worry about the effects of climate change — national security. During the next decade, the report concludes, climate change could have wide-reaching effects on everything from food, water, and energy supplies to critical infrastructure and economic security. “The imminent increase in extreme events will affect water availability, energy use, food distribution, and critical infrastructure — all elements of both domestic and international security,” the report’s author says.

  • Self-healing protective coating for concrete

    Scientists are reporting development of what they describe as the first self-healing protective coating for cracks in concrete, the world’s most widely used building material. The coating is inexpensive and environmentally friendly.

  • U.S. responds to China’s cyberattacks with anti-theft trade strategy

    The Obama administration yesterday (Wednesday) unveiled the details of a broad strategy to counter the systemic theft by Chinese government agencies of U.S. trade and technology and trade secrets. The administration’s plan calls for new diplomatic push to discourage intellectual property theft abroad and better coordination at home to help U.S. companies protect themselves.

  • Earthquake catastrophes and fatalities to rise in 21st century

    Predicted population increases in this century can be expected to translate into more people dying from earthquakes. There will be more individual earthquakes with very large death tolls as well as more people dying during earthquakes than ever before, according to a new study.

  • U.S. weighing retaliatory measures against China for hacking campaign

    As incontrovertible evidence emerged for the role of Chinese government in initiating and orchestrating the massive, sustained Chinese hacking campaign against U.S. private companies, government agencies, and critical infrastructure assets, the administration has intensified discussions of retaliatory measures the United States may take against China.

  • Spotting potential targets of nefarious e-mail attacks

    The weakest link in many computer networks is a gullible human. With that in mind, computer science researchers want to figure out how to recognize potential targets of nefarious e-mails and put them on their guard.

  • Chinese government orchestrates cyberattacks on U.S.: experts

    For more than a decade now, China has engaged in a sustained, systemic, and comprehensive campaign of cyber attacks against the United States. The Chinese government has enlisted China’s sprawling military and civilian intelligence services, with their armies of cyber-specialists, in a cyber-campaign aiming to achieve three goals: steal Western industrial secrets and give them to Chinese companies, so these companies could compete and weaken their Western rivals; hasten China’s march toward regional, then global, economic hegemony; achieve deep penetration of U.S. critical infrastructure in order to gain the ability to disrupt and manipulate American critical infrastructure – and paralyze it during times of crisis and conflict. A detailed 60-page study, to be released today , offers, for the first time, proof that the most sophisticated Chinese hacker groups, groups conducting the most threatening attacks on the United States, are affiliated with the headquarters of China’s military intelligence lead unit — PLA Unit 61398.

  • Russia meteor a “once every 100 years” event

    The meteor which disintegrated in the skies over Chelyabinsk, Russia, early Friday morning entered the atmosphere at about 40,000 mph (18 kilometers per second). The energy released by the impact was in the hundreds of kilotons.The meteor is the largest reported since 1908, when a meteor hit Tunguska, Siberia.

  • System to vaporize asteroids that threaten Earth

    As an asteroid roughly half as large as a football field — and with energy equal to a large hydrogen bomb – flew by Earth on Friday, two California scientists unveiled their proposal for a system that could eliminate a threat of this size in an hour. The same system could destroy asteroids ten times larger than the one known as 2012 DA14 in about a year, with evaporation starting at a distance as far away as the Sun.

  • Quantum cryptography to secure electric grid

    Novel methods for controlling the electric grid are needed to accommodate new energy sources such as renewables whose availability can fluctuate on short time scales. This requires transmission of data to and from control centers; but for grid-control use, data must be both trustworthy and delivered without delays. The Los Alamos National Laboratory quantum cryptography team successfully completed the first-ever demonstration of securing control data for electric grids using quantum cryptography.

  • Infrastructure renewal in regional Australia

    New research in Australia calls for the establishment of a new national organization to tackle the shortfall in infrastructure investment and boost the regions’ capacity to contribute to national economic growth. Expert say the new organization, to be called Local Infrastructure Australia, would be the most effective way of overcoming the backlog in local government infrastructure investment now estimated at between $12 and $15.5 billion.

  • Lessons from the 2010-11 Australia floods

    New research has come up with ways quickly to assess flood damage to houses while also showing most people did not intend to make changes to reduce their vulnerability after the 2010-11 Australia floods. Two separate reports show how lessons learned from households affected by the 2010-11 Australian floods can minimize damage under current and future climates.

  • Sediment carried by 2011 Mississippi flood shored up Louisiana’s wetlands

    The spring 2011 flood on the Mississippi was among the largest floods ever, the river swelling over its banks and wreaking destruction in the surrounding areas. A new study also shows, however, that the floods reaped environmental benefits — transporting and laying down new sediment in portions of the Delta — that may help maintain the area’s wetlands.