Friday, April 29, 2016

Earth & Climate News -- ScienceDaily

Earth science research and news. Read science articles on air quality, geology, meteorology, oceanography, paleontology and science and the environment.
Earth & Climate News -- ScienceDaily
  1. Origin of Earth's oldest crystals
    New research suggests that the very oldest pieces of rock on Earth -- zircon crystals -- are likely to have formed in the craters left by violent asteroid impacts that peppered our nascent planet, rather than via plate tectonics as was previously believed.
  2. Extreme heat, precipitation linked to more severe asthma requiring hospitalization
    Extreme heat and heavy rainfall are related to increased risk of hospitalization for asthma in Maryland, according to a study. Based on over a decade of asthma hospitalization data (115,923 cases from 2000-2012), Researchers observed a 23 percent increase in risk of asthma hospitalizations when there was an extreme heat event during summer months. This risk was higher among 5-17 year olds.
  3. Not just climate change: Human activity is a major factor driving wildfires
    A new study examining wildfires in California found that human activity explains as much about their frequency and location as climate influences.
  4. Hunting wolves near Denali, Yellowstone cuts wolf sightings in half
    Visitors to Denali National Park and Preserve and Yellowstone National Park were twice as likely to see a wolf when hunting wasn't permitted adjacent to the parks, a new study finds.
  5. Ocean views linked to better mental health
    Here's another reason to start saving for that beach house: new research suggests that residents with a view of the water are less stressed.
  6. Canadian waters getting safer, but research gaps limit full understanding of shipping risks
    The risks of commercial marine shipping accidents across Canada's regions have been outlined in a new report, including information for different cargo types. The report highlights gaps in understanding and areas for further research.
  7. Speedy bridge repair
    Normally, it takes weeks to repair the cracking or spalling of columns on just one bridge damaged in an earthquake. Now a team of researchers has developed a new process of fixing damaged bridge columns that takes as little as a few days.
  8. Insect outbreaks reduce wildfire severity
    Outbreaks by the mountain pine beetle and western spruce budworm can actually reduce wildfire severity, surprising new research shows. The findings contrast sharply with popular attitudes -- and some US forest policies.
  9. At last: Non-toxic and cheap thin-film solar cells for 'zero-energy' buildings
    'Zero-energy' buildings -- which generate as much power as they consume -- are now much closer after engineers have achieved the world's highest efficiency using flexible solar cells that are non-toxic and cheap to make.
  10. Sea-level rise summit coincides with flooding risks in south Florida due to the moon, high tides and inclement weather
    Just as parts of South Florida are bracing for potential risks of flooding in low-lying areas due to the close proximity of the moon, high tides, sea-level rise and inclement weather, researchers are bringing together professionals from the private and public sectors to help identify solutions and develop adaptation pathways.