• Georgia wants to redraw its northern border to tap Tennessee River water

    Lawmakers in Georgia are renewing efforts to claim Georgia’s right to tap into the Tennessee River’s  water supply. The lawmakers hope to achieve this by raising questions about the exact demarcation of the border between the two states.

  • 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.

  • 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.

  • Water managers can now consult new U.S. water evaporation maps

    The amount of water available for people and ecosystems is the amount of annual precipitation — that is, snow or rain — minus the amount of annual evapotranspiration.  Evapotranspiration itself is the amount of water lost to the atmosphere from the ground surface. Scientists map the long-term U.S. evapotranspiration rates for the first time.

  • The sobering reality of water security

    Agriculture is one of the world’s most insatiable consumers of water. Yet, it is facing growing competition for water from cities, industry, and recreation at a time when demand for food is rising, and water is expected to become increasingly scarce.

  • The costly wild-weather consequences of climate change

    Throughout 2012, the United States was battered by severe weather events such as hurricanes and droughts that affected both pocketbooks and livelihoods. Research suggests that in the coming years, U.S. five-day forecasts will show greater numbers of extreme weather events, a trend linked to human-driven climate change.

  • 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.

  • Making communities more resilient to climate-induced weather disasters

    Mounting scientific evidence indicates climate change will lead to more frequent and intense extreme weather that affects larger areas and lasts longer. We can reduce the risk of weather-related disasters, however, with a variety of measures. Experts say that a good strategy should include a variety of actions such as communicating risk and transferring it through vehicles such as insurance, taking a multi-hazard management approach, linking local and global management, and taking an iterative approach as opposed to starting with a master plan.

  • Toxic legacy of lead pollution persists despite regulatory efforts, modest gains

    Efforts to reduce lead pollution have paid off in many ways, yet the problem persists and will probably continue to affect the health of people and animals well into the future. The good news, he said, is that atmospheric lead concentrations in the United States have fallen by 89 percent in the past three decades.The bad news is that blood lead levels are still about 100 times higher than the natural background level, and there is no known threshold for lead toxicity. In other words, even tiny amounts of lead in the body can be harmful.

  • 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.

  • Expanding biological control of crop pests

    A new discovery promises to allow expanded use of a mainstay biological pest control method, which avoids the health, environmental, and pest-resistance concerns of traditional insecticides, scientists are reporting. This advance broadens the applicability of the so-called sterile insect technique (SIT).

  • The Middle East rapidly losing fresh water

    A new study using data from a pair of gravity-measuring NASA satellites finds that large parts of the arid Middle East region lost freshwater reserves rapidly during the past decade. Scientists found during a seven-year period beginning in 2003 that parts of Turkey, Syria, Iraq, and Iran along the Tigris and Euphrates river basins lost 117 million acre feet (144 cubic kilometers) of total stored freshwater. That is almost the amount of water in the Dead Sea. The researchers attribute about 60 percent of the loss to pumping of groundwater from underground reservoirs.