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Researchers use airborne radar to detect groundwater beneath Greenland glacier
Researchers have detected groundwater beneath a glacier in Greenland for the first time using airborne radar data. If applicable to other glaciers and ice sheets, the technique could allow for more accurate predictions of future sea-level rise. By Danielle Torrent Tucker
Melting glaciers and polar ice sheets are among the dominant sources of sea-level rise, yet until now, the water beneath them has remained hidden from airborne ice-penetrating radar.
With the detection of groundwater beneath Hiawatha Glacier in Greenland, researchers have opened the possibility that water can be identified under other glaciers from the air at a continental scale and help improve sea-level rise projections. The presence of water beneath ice sheets is a critical component currently missing from glacial melt scenarios that may greatly impact how quic
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Researchers map how people in cities get a health boost from nature
Trees lining a street may encourage people to take a longer stroll or choose to bike to work. New research shows how access to natural areas in cities can improve human health by supporting physical activity. The researchers plan to equip city planners with tools to create healthier, more sustainable cities around the world. By Sarah Cafasso
Your local city park may be improving your health, according to a new paper led by Stanford University researchers. The research, published in Proceedings of the National Academy of Sciences, lays out how access to nature increases people’s physical activity – and therefore overall health – in cities. Lack of physical activity in the U.S. results in $117 billion a year in related health care costs and leads to 3.2 million deaths globally every year. It may seem like an intuitive connection, but the new research closes an
Targeting pollutive brick kilns in Bangladesh with AI
A brick kiln worker. A new study shows that artificial intelligence can be used to locate and regulate pollutive brick kilns in Bangladesh. Copyright: Dipankar Sarkar/Kalu Institute, (CC BY-NC-ND 2.0). This image has been cropped.
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Small-scale kilns are hard to locate and regulate
AI could provide a low-cost solution to pinpoint highly polluting kilns
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Study dives deeper into genetic differences between modern and archaic humans
Researchers examined 14,000 genetic differences between modern humans and our most recent ancestors at a new level of detail. They found that differences in gene activation – not just genetic code – could underlie evolution of the brain and vocal tract. By Taylor Kubota
A genome by itself is like a recipe without a chef – full of important information, but in need of interpretation. So, even though we have sequenced genomes of our nearest extinct relatives – the Neanderthals and the Denisovans – there remain many unknowns regarding how differences in our genomes actually lead to differences in physical traits.