• Birds of a feather flock together to confuse potential predators

    Scientists from the Universities of Bristol and Groningen, in The Netherlands, have created a computer game style experiment which sheds new light on the reasons why starlings flock in massive swirling groups over wintering grounds.

    A mumeration can hold many thousands of starlings but the reasons why they put on these amazing displays are not well understood.

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  • Periods of Greater Atlantic Hurricane Activity Linked to Weaker U.S. Landfalls

    During periods of greater Atlantic hurricane activity, a protective barrier of vertical wind shear and cooler ocean temperatures forms along the U.S. East Coast, weakening storms as they approach land, according to a new study by NCEI scientist, Jim Kossin. In his paper, “Hurricane Intensification along United States Coast Suppressed during Active Hurricane Periods (link is external),” published in Nature, Kossin identifies this “buffer zone” and describes its relationship with both active and inactive periods of Atlantic hurricane activity.

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  • Climate change to shift global pattern of mild weather

    As scientists work to predict how climate change may affect hurricanes, droughts, floods, blizzards and other severe weather, there's one area that's been overlooked: mild weather. But no more.

    NOAA and Princeton University scientists have produced the first global analysis of how climate change may affect the frequency and location of mild weather - days that are perfect for an outdoor wedding, baseball, fishing, boating, hiking or a picnic. Scientists defined "mild" weather as temperatures between 64 and 86 degrees F, with less than a half inch of rain and dew points below 68 degrees F, indicative of low humidity.

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  • It's freezing inside - that tornado?

    With winter upon us in full force, outdoor temperatures are plummeting. But inside an intense tornado, it’s always chilly — no matter the time of year. A new study from Concordia proves why that’s the case.

    In an article forthcoming in the Journal of Aircraft of the American Institute of Aeronautics and Astronautics, mechanical engineering professor Georgios Vatistas looks into the case of a violent tornado that touched down in 1955 in Scottsbluff, Nebraska.

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  • Climate policies alone will not save Earth's most diverse tropical forests

    Afocus on policies to conserve tropical forests for their carbon storage value may imperil some of the world’s most biologically rich tropical forests.

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  • World's biggest tropical carbon sink found in Congo rainforest

    A 145,000 sq km area of peatland swamp forest has been discovered in the Congo Basin, writes Tim Radford, and it holds a record 30 Gt of carbon, equivalent to 20 years of US fossil fuel emissions. Now the race is on to protect it from damaging development that would emit that carbon over coming decades.

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  • Study tracks memory of soil moisture

    The top 2 inches of topsoil on all of Earth’s landmasses contains an infinitesimal fraction of the planet’s water — less than one-thousandth of a percent. Yet because of its position at the interface between the land and the atmosphere, that tiny amount plays a crucial role in everything from agriculture to weather and climate, and even the spread of disease.

    The behavior and dynamics of this reservoir of moisture have been very hard to quantify and analyze, however, because measurements have been slow and laborious to make.

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  • Halley Research Station Antarctica to close for winter

    British Antarctic Survey (BAS) has decided not to winter at Halley VI Research Station for safety reasons. The station, which is located on the floating Brunt Ice Shelf in Antarctica, will shut down between March and November 2017.  Changes to the ice, particularly the growth of a new crack, presents a complex glaciological picture that means that BAS scientists are unable to predict with certainty what will happen to the ice shelf during the forthcoming Antarctic winter. As a precautionary measure BAS will remove its people before the Antarctic winter begins.

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  • Giant Middle East dust storm caused by a changing climate, not human conflict

    In August 2015, a dust storm blanketed large areas of seven Middle East nations in a haze of dust and sand thick enough to obscure them from satellite view. The storm led to several deaths, thousands of cases of respiratory ailments and injuries, and canceled airline flights and closed ports. 

    At the time, the storm's unusual severity was attributed to the ongoing civil war in Syria by media outlets in the Middle East, Europe and the United States. Reports blamed the conflict for changes in land use and cover — and for activities like increased military traffic over unpaved surfaces and farmers reducing irrigation or abandoning agricultural land — that created extreme amounts of dust to fuel the storm.

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  • NASA Analyzes Heavy Rainfall Over Southern Thailand

    Widespread flooding has recently caused the deaths of dozens of people in southern Thailand. Frequent and persistent downpours have resulted in record rainfall totals and NASA calculated rainfall over the region from January 5 to January 12, 2017.

    The Global Precipitation Measurement mission or GPM core satellite is part of a constellation of satellites that can measure rainfall from space. GPM is a joint mission between NASA and the Japan Aerospace Exploration Agency and the data is input into NASA's Integrated Multi-satellitE Retrievals for GPM (IMERG) data product.

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