On the surface, subduction zones manifest as oceanic trenches, the deepest of which is the Mariana Trench in the Pacific Ocean. One notable feature of many trenches is their outer rise, a shallow bulge on the outskirts of ...
Earth Sciences
Aug 10, 2022
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7
In late May of 2021, 172 runners set out to tackle a 100-kilometer (62-mile) ultramarathon in northwestern China. By midday, as the runners made their way through a rugged, high-elevation part of the course, temperatures ...
Earth Sciences
Aug 9, 2022
1
65
Coastal aquaculture has grown rapidly over the past few decades, and although ocean-based food supplies have increased, concerns about the environmental impacts of aquaculture have as well. For example, research has found ...
Ecology
Aug 9, 2022
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59
Methane is well known as a potent greenhouse gas that is emitted into the atmosphere by human activity and contributes significantly to global warming.
Earth Sciences
Aug 5, 2022
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14
Reservoirs provide water storage, hydropower, and recreation for local communities. However, adding a reservoir significantly changes a landscape's geological conditions and ushers in new and unpredictable hazards—most ...
Earth Sciences
Aug 4, 2022
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56
A foundational element of plant metabolism is the transport of water from the ground to the leaves. In most plants, this task is facilitated by xylem, a tissue whose structure provides hydraulic pathways that aid the water's ...
Plants & Animals
Jul 29, 2022
0
317
A new study in AGU's Geophysical Research Letters reports on the first detection of a large, distant earthquake in a network of balloon-bound pressure sensors in the stratosphere. The technique could one day be applied on ...
Earth Sciences
Jul 28, 2022
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46
Rivers flow across many kinds of terrain, interacting with soil, rocks, microbes, and roots. River water therefore carries signatures of everything it interacts with, and its chemistry reflects the response of the critical ...
Environment
Jul 27, 2022
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13
Low-oxygen conditions in oceans negatively affect marine life and ecosystems. Although many coastlines experience regular low-oxygen periods, the phenomenon is becoming more common as dissolved oxygen decreases globally. ...
Earth Sciences
Jul 25, 2022
1
7
A cool pocket climate around the snout of a glacier could help researchers predict how forests will respond to fast climate change, according to the authors of a new 120-year case study of a rapidly advancing and retreating ...
Earth Sciences
Jul 19, 2022
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66
