Geography

Geography News -- ScienceDaily Geography. Read the latest geographical research from universities and institutes around the world.

  • New database catalogues plants that soak up contamination
    on November 21, 2017 at 5:14 pm

    Hyperaccumulators are unusual plants that can absorb much larger amounts of metal compounds in their leaves and stems than normal plants, and they are very useful for cleaning up contaminated land. […]

  • Water cooling for the Earth's crust
    on November 21, 2017 at 5:14 pm

    How deep can seawater penetrate through cracks and fissures into the seafloor? By applying a new analysis method, an international team of researchers has now discovered that the water can penetrate to depths of more than 10 kilometers below the seafloor. This result suggests a stronger cooling effect on the hot mantle. […]

  • Seafloor sediments appear to enhance Earthquake and Tsunami danger in Pacific Northwest
    on November 20, 2017 at 5:45 pm

    The Cascadia Subduction Zone off the coast of the Pacific Northwest has all the ingredients for making powerful earthquakes -- and according to the geological record, the region is due for its next 'big one.' A new study has found that the occurrence of these big, destructive quakes and associated devastating tsunamis may be linked to compact sediments along large portions of the subduction zone. […]

  • Antarctic landscape insights keep ice loss forecasts on the radar
    on November 20, 2017 at 5:09 pm

    New maps of a mountainous landscape under a key glacier in West Antarctica will be a valuable aid in forecasting sea level changes. […]

  • One source of potent greenhouse gas pinned down
    on November 20, 2017 at 4:36 pm

    Researchers have discovered the first known methane-producing microbe that is active in an oxygen-rich environment -- a finding that suggests today's global climate models may be misjudging the amount of methane being released into the atmosphere. […]

  • Added Arctic data shows global warming didn't pause
    on November 20, 2017 at 4:13 pm

    Missing Arctic temperature data, not Mother Nature, created the seeming slowdown of global warming from 1998 to 2012, according to a new study. […]

  • Hydrological implications of rapid global warming
    on November 20, 2017 at 4:13 pm

    Researchers studying a rapid global warming event, around 56 million years ago, have shown evidence of major changes in the intensity of rainfall and flood events. The findings indicate some of the likely implications should current trends of rising carbon dioxide and global warming continue. […]

  • What makes soil, soil? Researchers find hidden clues in DNA
    on November 20, 2017 at 4:13 pm

    Ever wondered what makes a soil, soil? And could soil from the Amazon rainforest really be the same as soil from your garden? […]

  • Rise in oxygen levels links to ancient explosion of life, researchers find
    on November 20, 2017 at 4:13 pm

    Scientists have found that oxygen levels appear to increase by roughly 80 percent at about the same time as a three-fold increase in biodiversity during the Ordovician Period, between 445 and 485 million years ago. […]

  • Recovery of West Coast marine mammals boosts consumption of chinook salmon
    on November 20, 2017 at 1:54 pm

    The researchers estimate that from 1975 to 2015, the yearly biomass of chinook salmon consumed by pinnipeds (sea lions and harbor seals) and killer whales increased from 6,100 to 15,200 metric tons, and from five to 31.5 million individual salmon. […]

  • Plant respiration could become a bigger feedback on climate than expected
    on November 17, 2017 at 3:38 pm

    New research suggests that plant respiration is a larger source of carbon emissions than previously thought, and warns that as the world warms, this may reduce the ability of Earth's land surface to absorb emissions due to fossil fuel burning. […]

  • A popular tool to trace Earth's oxygen history can give false positives
    on November 17, 2017 at 1:52 pm

    If someone cries 'Eureka!' because it looks like oxygen appeared in Earth's ancient atmosphere long before the body of evidence indicated, be careful. If it was a chromium isotope system reading that caused the enthusiasm, it might need to be curbed. […]

  • Transforming greenhouse gases: New 'supercatalyst' to recycle carbon dioxide and methane
    on November 17, 2017 at 1:51 pm

    Engineers have developed a new and cost-effective catalyst to recycle two of the main causes behind climate change -- carbon dioxide (CO2) and methane (CH4). […]

  • Groundwater recharge in the American west under climate change
    on November 16, 2017 at 4:42 pm

    Groundwater recharge in the Western US will change as the climate warms -- the dry southern regions will have less and the northern regions will have more, according to new research. The new study covers the entire US West, from the High Plains states to the Pacific coast, and provides the first detailed look at how groundwater recharge may change as the climate changes. Groundwater is an important source of freshwater, particularly in the West. […]

  • Climate change impacts already locked in, but the worst can still be avoided
    on November 16, 2017 at 3:50 pm

    Some impacts of global warming -- such as sea level rise and coastal flooding -- are already locked in and unavoidable, according to a major research project. […]

  • Shape of Lake Ontario generates white-out blizzards, study shows
    on November 15, 2017 at 10:53 pm

    A 6-foot-wide snow blower mounted on a tractor makes a lot of sense when you live on the Tug Hill Plateau. Tug Hill, in upstate New York, is one of the snowiest places in the Eastern US and experiences some of the most intense snowstorms in the world. This largely rural region, just east of Lake Ontario, gets an average of 20 feet of snow a year, and a new report explains why. […]

  • Study urges global-change researchers to embrace variability
    on November 15, 2017 at 8:36 pm

    A new review article presents evidence that argues for a more nuanced approach to the design of global-change experiments -- one that acknowledges and purposefully incorporates the variability inherent in nature. […]

  • Pacific Island countries could lose 50 -- 80% of fish in local waters under climate change
    on November 15, 2017 at 6:38 pm

    Many Pacific Island nations will lose 50 to 80 percent of marine species in their waters by the end of the 21st century if climate change continues unchecked, finds a new study. This area of the ocean is projected to be the most severely impacted by aspects of climate change. […]

  • How a tiny sea animal feeds itself, and the ocean
    on November 15, 2017 at 6:02 pm

    Dime-sized ocean organisms thought to graze on any particles in their path are actually picky eaters, and their food-filtering process may be vital to how organic materials are distributed from surface waters to the ocean floor, report investigators. […]

  • Off track: How storms will veer in a warmer world
    on November 15, 2017 at 5:49 pm

    The dry, semi-arid regions are expanding into higher latitudes, and temperate, rainy regions are migrating poleward. In a new paper, researchers provide new insight into this phenomenon by discovering that mid-latitude storms are steered further toward the poles in a warmer climate. […]

  • Amazon's recovery from forest losses limited by climate change
    on November 15, 2017 at 5:49 pm

    Deforested areas of the Amazon Basin have a limited ability to grow new trees because of changes in climate, according to a study. […]

  • Colorado River's connection with the ocean was a punctuated affair
    on November 15, 2017 at 5:46 pm

    The Colorado River's initial trip to the ocean didn't come easy, but its story has emerged from layers of sediment preserved within tectonically active stretches of the waterway's lower reaches. Researchers theorize that the river's route off the Colorado Plateau was influenced by tectonic deformation and changing sea levels that produced a series of stops and starts between roughly 6.3 and 4.8 million years ago. […]

  • Shifting presence of North Atlantic right whales tracked with passive acoustics
    on November 15, 2017 at 3:48 pm

    A new study confirms what marine mammal researchers have suspected for a while: right whales use nearly the entire eastern seaboard during the winter, and they move around a lot more than was previously thought. How long they spend in some areas of their range has also changed in recent years. […]

  • Public – and researchers – skeptical about climate engineering
    on November 15, 2017 at 2:22 pm

    What does the general public know about climate engineering, and what do they think about what they know? These were questions asked by researchers. […]

  • Tumbling bumblebee populations linked to fungicides
    on November 15, 2017 at 12:50 am

    When a team of scientists analyzed two dozen environmental factors to understand bumblebee population declines and range contractions, they expected to find stressors like changes in land use, geography or insecticides. Instead, they found a shocker: fungicides, commonly thought to have no impact. […]

  • Artificially cooling planet 'risky strategy'
    on November 14, 2017 at 5:34 pm

    Proposals to reduce the effects of global warming by imitating volcanic eruptions could have a devastating effect on global regions prone to either tumultuous storms or prolonged drought, new research has shown. […]

  • Study settles prehistoric puzzle, confirms modern link of carbon dioxide and global warming
    on November 14, 2017 at 5:32 pm

    Fossil leaves from Africa resolve a prehistoric climate puzzle and confirm the link between carbon dioxide and global warming. Research previously found conflicting data on high carbon levels and its link to climate change about 22 million years ago. But a new study found the link existed then as now. The finding sheds light on recent and future increases in atmospheric carbon and its impact on our planet. […]

  • Study of impact of climate change on temperatures suggests more deaths unless action taken
    on November 14, 2017 at 12:50 am

    The largest study to date of the potential temperature-related health impacts of climate change has shown that as global temperatures rise, the surge in death rates during hot weather outweighs any decrease in deaths in cold weather, with many regions facing sharp net increases in mortality rates. […]

  • Geologists uncover Antarctica’s fossil forests
    on November 13, 2017 at 9:28 pm

    Prehistoric polar forests were built for survival, but were not hardy enough to live in ultra-high concentrations of atmospheric carbon dioxide. A geologist is studying the tree fossil record in Antarctica from a mass extinction 250 million years ago, looking for clues to how greenhouse gases affected plants -- then and now. […]

  • California birds nesting a week earlier than they did a century ago
    on November 13, 2017 at 8:38 pm

    Many birds are adjusting their life styles to breed 5-12 days earlier to avoid warming that has occurred since the early 1900s, an ongoing survey of California birds and comparison with century-old data shows. This strategy, combined with the trend of other birds to move northward in range or upward in elevation, allows adaptation to climate change, though eventually the cool window for breeding may become too short for some species. […]