Earth’s largest water reservoir could be 1,800 miles beneath the surface

When Jules Verne first published his story “Journey to the Center of the Earth”, it was fantasy that one could sail across a vast ocean deep below the surface of the earth, but many became fascinated by what could exist thousands of miles beneath our feet. These fantasies remain even today as we are unable to study the innermost layers of our planet directly, but new research techniques reveal the Earth’s core may be more like Verne’s version after all.

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The burning question: How do wildfires impact watersheds?

Wildfires can be devastating events, but the impacts can last long after the flames are gone. The major changes to the landscape can have serious implications for how water moves and, as a result, how much of that water we can use. In this study, scientists investigate what a fiery future under climate change could mean for watersheds.

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A sucker for ecosystem engineers

Sonoran suckers, like other ecosystem engineers like beavers or salmon, substantially influence the spatial and temporal distribution of their environment’s resources. These fish create divots in soft sediments during their nightly feeding rounds in shallow waters far from where they seek refuge during the day. This feeding and these divots contribute heavily to shaping patterns of aquatic insects and suspended sediment in the Gila River, establishing the suckers as important ecosystem engineers in the river.

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To bugs in streams, fine sediment is not so fine

Clearing land for agriculture often leads to decreased flow velocities and in increase in fine sediment additions in nearby streams. While many stream bugs rely on small fine sediments, too much of it can detrimentally affect them. Changes to flow velocities and inputs of fine sediment in affected streams are not always equal in magnitude, so an experiment was run to see the responses of aquatic macroinvertebrates to various combinations of flow and sediment conditions. The scientists found fine sediments negatively impacted almost all stream bugs and that low flows exacerbated the problem.

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Pollution in Polish Rivers, and the Cucumber Solution

Pollution is dangerous, both to humans and the ecosystems we care about. But researchers in Poland have studied the sources and dynamic movement of pollutants in rivers, and may have found potential in cucumbers to help improve the system.

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Hot tree summer: Measuring the effects of the 2017 heat wave on Europe’s forests

Plants are always just trying to live their best life, but sometimes high temperatures and a lack of water get in the way of that. In this study, scientists studied a heat wave that occurred in southern Europe in summer 2017 to see how different plants fared across the region.

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The Color of Water Policy

What’s your favorite color – blue, or green? Water policy has focused traditionally on blue water (ground or surface water released into the atmosphere by evaporation), but there’s more to the water-use equation. To understand water use and availability more broadly, researchers are now considering the value and availability of green water (that which is released back to the atmosphere by plants). In this paper, green-water use and availability is investigated at a global scale, leading the authors to advocate for inclusion of green water into water policy considerations.

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