• Global warming will reduce frequency but increase intensity of hurricanes

    Two variables — ocean temperature and wind shear — are considered to be the two most important factors in predicting hurricane activity, both in operational forecasting and in consideration of climate change; new research shows that global warming will likely reduce the frequency of hurricanes, but increase their intensity

  • The pandemic potential of H9N2 avian influenza viruses

    Researchers show that some currently circulating avian H9N2 viruses can transmit to naïve ferrets placed in direct contact with infected ferrets — but aerosol transmission was not observed, a key factor in potentially pandemic strains

  • New bird flu strain detected in Nigeria

    Nigeria has reported two new highly pathogenic avian influenza outbreaks; laboratory results show that the newly discovered virus strain (H5N1, clade 2, EMA3) is genetically different from the strains that circulated in Nigeria during earlier outbreaks

  • Five ways for humans to trigger a natural disaster

    Most scientists now agree that human activity contributes to a long-term changes in global climate, with serious consequences for humans, animals, and plants; human activity, though, can also trigger sudden “natural” catastrophes

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  • Thales chooses e2v for Sentinel-3 Earth observation satellite

    Sentinel-3 will be used to study sea surface topography, sea, and land surface temperature, ocean color, and land color with a high level of accuracy

  • Floods strip Midwest of tons of valuable topsoil

    Floods are stripping the Midwest of its most valuable resource: soil; farmers and environmentalists are at odds over what to do with erosion-prone land — take their chances planting crops on marginal land in hopes of good yields and high grain prices, or plant trees, native grasses, or ground cover that act as a natural flood buffer

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  • Earth's surface features predict earthquakes

    Seismologists could make better use of the surface features of mountains to detect the troubles which lurk beneath

  • Midwest floods to create record dead zone in Gulf of Mexico

    Each year, an influx of nutrients — mainly nitrogen — which come from fertilizers flushed out of the Mississippi basin creates dead zones in the Gulf of Mexico — zones where there is not enough oxygen to sustain life; the summer’s Midwest floods flush record levels of nutrients into the Gulf, creating a dead zone the size of New Jersey

  • Better picture of what lies beneath the Earth's surface

    A tool which measures minute changes in the planet’s gravity field from the air allows a cheaper alternative to seismic surveying

  • NASA's UAV helps fight California wild fires

    Fire crews are fighting more than 1,700 blazes that have blackened 829,000 acres of California this fire season; they need all the help they can get — and NASA extends such help by lending the state a modified Predator UAV

  • Evidence of acid rain supports meteorite theory of Tunguska catastrophe

    There are many theories about the source of the mysterious 1908 explosion in Siberia, an explosion which leveled more than 80 million trees over an area of more than 2,000 square kilometers; presence of acid rain lends support to one of them

  • Predicting hurricanes

    During the summer and autumn, a large body of warm water with a surface temperature of more than 28 °C appears in the Gulf of Mexico; at certain times the current cannot remove heat fast enough from the gulf, creating conditions that are particularly favorable for intense hurricane formation

  • California unveils GIS initiative

    Geospatial Information Systems (GIS) enhance the technology for environmental protection, natural resource management, traffic flow, emergency preparedness and response, land use planning, and health and human services; California wants to avail itself of the technology’s benefits

  • Global warming will cause storms to intensify

    Daniel Bernoulli’s eighteenth-century equation basically says that as wind speed increases, air pressure decreases; his equation leaves out variables that were considered difficult to deal with such as friction and energy sources; Wolverines researchers now include these additional variables and find that for every 3.6 degrees Fahrenheit that the Earth’s surface temperature warms, the intensity of storms could increase by at least a few percent

  • Rising sea level threatens U.K. coastal rail lines

    Andrew McNaughton, Network Rail’s chief engineer: “The effects of climate change, and in particular sea level rise, are likely to increase the severity of the wave, tidal and wind effects on coastal defenses”