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Categories: Environmental: Water, Geoscience: Geomagnetic Storms
Published Summer droughts in Northern hemisphere increasingly likely as seasonal streamflows change
(via sciencedaily.com) Original source Declining snowfall is changing the seasonal patterns of streamflow throughout the Northern hemisphere boosting chances of water shortages in the summer, scientists have found.
Published Some countries could meet their total electricity needs from floating solar panels
(via sciencedaily.com) Original source Floating solar photovoltaic panels could supply all the electricity needs of some countries, new research has shown. The researchers calculated the daily electrical output for floating photovoltaics (FPV) on nearly 68,000 lakes and reservoirs around the world, using available climate data for each location.
Published Microscopic defects in ice shape how massive glaciers flow, study shows
(via sciencedaily.com) Original source A glacier's flow depends on how microscopic defects move through the ice, according to new research that also yielded a new model for predicting how glaciers will flow, ultimately contributing to sea-level rise.
Published Mapping the seafloor sediment superhighway
(via sciencedaily.com) Original source A new scientific model is giving researchers an unprecedented, global look at the activities of clams, worms, and other invertebrate animals that burrow at the bottom of the ocean.
Published Shape and depth of ocean floor profoundly influence how carbon is stored there
(via sciencedaily.com) Original source The movement of carbon between the atmosphere, oceans and continents -- or carbon cycle -- regulates Earth's climate, with the ocean playing a major role in carbon sequestration. A new study finds that the shape and depth of the ocean floor explain up to 50% of the changes in depth at which carbon has been sequestered there over the past 80 million years. While these changes have been previously attributed to other causes, the new finding could inform ongoing efforts to combat climate change through marine carbon sequestration.
Published Crucial shift in River Nile's evolution during ancient Egypt discovered
(via sciencedaily.com) Original source Researchers have explored how the River Nile evolved over the past 11,500 years and how changes in its geography could have helped shape the fortunes of ancient Egyptian civilization. Research reveals a major shift in the Nile around four thousand years ago, after which the floodplain in the Nile Valley around Luxor greatly expanded.
Published Greenhouses cover more and more of Earth's surface
(via sciencedaily.com) Original source Greenhouse cultivation is booming globally, especially in the Global South -- and across one country in particular. This is revealed in a new study that deploys detailed satellite imagery and AI to map greenhouses across the planet. According to the researchers, the development is a source of both promise and concern.
Published Fresh findings: Earliest evidence of life-bringing freshwater on Earth
(via sciencedaily.com) Original source New research has found evidence that fresh water on Earth, which is essential for life, appeared about four billion years ago -- five hundred million years earlier than previously thought.
Published Researchers call for return of Sumas Lake following devastating 2021 floods
(via sciencedaily.com) Original source A new proposal has emerged in response to the November 2021 floods that swept Sumas Prairie in the Fraser Valley, British Columbia, causing mass evacuations and millions in damages. Instead of rebuilding the dykes to manage water flows and prevent future floods, scientists, along with members of the Sumas First Nation and other research partners, suggest an alternative: let Sumas Lake, which was drained in the early 1920s and converted into the farmland known as Sumas Prairie, return to its natural state. This can be done by buying out properties on the lakebed -- a solution that is projected to cost around $1 billion, less than half of the estimated $2.4 billion cost of repairing the dykes and installing a new pump station.
Published Mussels downstream of wastewater treatment plant contain radium, study reports
(via sciencedaily.com) Original source Burrowed into streambeds and rarely moving for their decades-long lifespans, freshwater mussels are biomonitors, meaning they indicate how clean their environment is, according to researchers. As the bivalves feed on organic matter and filter the water around them, their inner tissues and hard shells begin to reflect whatever is in their environment -- including radioactive particles.
Published Fjords are effective carbon traps regardless of oxygen levels
(via sciencedaily.com) Original source The fjords on Sweden's west coast act as effective carbon traps regardless of whether the bottom water is oxygen-rich or not.
Published Trout in mine-polluted rivers are genetically 'isolated'
(via sciencedaily.com) Original source Trout living in rivers polluted by metal from old mines across the British Isles are genetically 'isolated' from other trout, new research shows.
Published People are altering decomposition rates in waterways
(via sciencedaily.com) Original source Humans may be accelerating the rate at which organic matter decomposes in rivers and streams on a global scale, according to a new study. That could pose a threat to biodiversity in waterways around the world and increase the amount of carbon in Earth's atmosphere, potentially exacerbating climate change. The study is the first to combine a global experiment and predictive modeling to illustrate how human impacts to waterways may contribute to the global climate crisis.
Published Historic iceberg surges offer insights on modern climate change
(via sciencedaily.com) Original source A great armada entered the North Atlantic, launched from the cold shores of North America. But rather than ships off to war, this force was a fleet of icebergs. And the havoc it wrought was to the ocean current itself. The future of the Atlantic circulation will be determined by a tug-o-war between Greenland's decreasing ice flux and its increasing freshwater runoff.
Published Every drop counts: New algorithm tracks Texas daily reservoir evaporation rates
(via sciencedaily.com) Original source Researchers have developed a more accurate method for tracking reservoir evaporation rates that will improve water planning and management.
Published New method makes hydrogen from solar power and agricultural waste
(via sciencedaily.com) Original source Engineers have helped design a new method to make hydrogen gas from water using only solar power and agricultural waste such as manure or husks. The method reduces the energy needed to extract hydrogen from water by 600%, creating new opportunities for sustainable, climate-friendly chemical production.
Published High groundwater depletion risk in South Korea in 2080s
(via sciencedaily.com) Original source Team utilizes advanced statistical techniques to project the future groundwater depletion risk.
Published Antibiotic pollution disrupts the gut microbiome and blocks memory in aquatic snails
(via sciencedaily.com) Original source Antibiotics prevent snails from forming new memories by disrupting their gut microbiome -- the community of beneficial bacteria found in their guts.
Published A drying Salton Sea pollutes neighboring communities
(via sciencedaily.com) Original source Dust particles from the Salton Sea's exposed lakebed increased air pollution in local communities, found a new study. The pollution coincides with reduced flows into the lake and diversions to San Diego.
Published Aerosol pollution, greenhouse gases must be reduced simultaneously to keep forest fires in check
(via sciencedaily.com) Original source If we want cleaner air, fewer forest fires, and less severe climate change, a new study shows we must reduce aerosol pollution and greenhouse gases like carbon dioxide at the same time.