Millions of Americans live in flood-prone areas. In 2012 alone, the cost of direct flood damage hit nearly half a billion dollars. However, because the factors contributing to flood risk are not fully understood, river basin management — and even the calculation of flood insurance premiums — may be misguided. A new study by UC Santa Barbara’s Michael Singer and colleagues presents a paradigm shift in flood hazard analysis that could change the way such risk is assessed in the future. The results are published in the journal Geophysical Research Letters.
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Mystery Goo is Killing Seabirds in the San Francisco Bay
Rescuers are working diligently to save birds who are being killed by a “mysterious goo” that has appeared in the San Francisco Bay, while officials remain perplexed about what the substance is and where it came from.
The Large Binocular Telescope Interferometer sets its sights on habitable planets
The NASA-funded Large Binocular Telescope Interferometer, or LBTI, has completed its first study of dust in the "habitable zone" around a star, opening a new door to finding planets like Earth. Dust is a natural byproduct of the planet-formation process, but too much of it can block our view of planets.
The findings will help in the design of future space missions that have the goal of taking pictures of planets similar to Earth, called exo-Earths.
"Kepler told us how common Earth-like planets are," said Phil Hinz, the principal investigator of the LBTI project at the University of Arizona, Tucson, referring to NASA's planet-hunting Kepler mission, which has identified more than 4,000 planetary candidates around stars. "Now we want to find out just how dusty and obscured planetary environments are, and how difficult the planets will be to image."
Atmospheric Rivers Add to Antarctica's Ice Sheets
Extreme weather phenomena called atmospheric rivers were behind intense snowstorms recorded in 2009 and 2011 in East Antarctica. The resulting snow accumulation partly offset recent ice loss from the Antarctic ice sheet, report researchers from KU Leuven. Atmospheric rivers are long, narrow water vapour plumes stretching thousands of kilometres across the sky over vast ocean areas. They are capable of rapidly transporting large amounts of moisture around the globe and can cause devastating precipitation when they hit coastal areas.
Are Marine Mammals Adapting to Avoid Humans?
Remarkable ocean research shows us that certain whale and seal species are reaching new depths and breaking records by diving so far away from the surface that experts are shocked that they can even survive the pressure. Some animals like the Cuvier’s beaked whales can dive almost 10,000 feet and hold their breath for 138 minutes.
Exeter University study casts doubt on theory of dinosaur extinction
Pioneering new research has debunked the theory that the asteroid that is thought to have led to the extinction of dinosaurs also caused vast global firestorms that ravaged planet Earth.
A team of researchers from the University of Exeter, University of Edinburgh and Imperial College London recreated the immense energy released from an extra-terrestrial collision with Earth that occurred around the time that dinosaurs became extinct. They found that the intense but short-lived heat near the impact site could not have ignited live plants, challenging the idea that the impact led to global firestorms.
These firestorms have previously been considered a major contender in the puzzle to find out what caused the mass extinction of life on Earth 65 million years ago.