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Biology
New map shows areas at high risk of whaling vessel collisions – speed limits and route changes for ships could reduce tolls
A blue whale swims near a large ship near the Port of Colombo, Sri Lanka. Credit: Asha de Vos, CC BY-ND Imagine you’re a blue whale swimming along the coast of California every spring. You are looking for krill in the Santa Barbara Channel. While this area is full of fish, kelp forests, seaweed beds, and other underwater life, it…
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Environment
Water associated with abandoned lithium mines contains low levels of common pollutants but high levels of other elements
Aerial view of a former lithium mine in the North Carolina Piedmont, west of Charlotte, North Carolina. Credit: Gordon Williams/Duke NSOE Lithium ore and mine waste from a historic lithium mine west of Charlotte, North Carolina, are unlikely to contaminate surrounding waters with common pollutants such as arsenic and lead, according to a new study. However, high levels of other…
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Earth
Planting trees in high Arctic latitudes could accelerate rather than slow global warming, scientists say
Direct and indirect effects of afforestation on climate forcing at high latitudes and their relative magnitude over the life of the plantation. a, Plantation establishment disrupts previously intact soils and increases microbial carbon decomposition (1). This is exacerbated by enhanced soil insulation caused by increased snow entrapment and decreased snow cover (2). Growing trees exude carbon from their roots, accelerating…
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Science
Pollution levels in Pakistan’s biggest cities hit record high, officials say
Air pollution in Lahore, Pakistan’s second-largest city, soared on Saturday, hitting an all-time high, officials said. Air pollution in Lahore, Pakistan’s second-largest city, soared on Saturday, hitting an all-time high for the smog-choked metropolis, officials said. For days, the city of 14 million people has been shrouded in smog, a mixture of fog and pollutants caused by low-grade diesel fuel,…
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Other Sciences
“Extreme Citizen Science” — High school students promoted to real researchers for motivation and environmental monitoring
High school students collecting water samples. Credit: Frederik Wolff Nisbeth Teglhus In addition to assisting with sample collection and butterfly discovery for research projects, non-experts can now perform actual laboratory work alongside professional researchers. The University of Copenhagen, in collaboration with a Danish high school, has shown that “Extreme Citizen Science” not only increases students’ interest in science, but also…
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Earth
Arctic ozone reaches record high in positive step for climate
Modeling representation of Arctic ozone hole recovery in 2024. Credit: Michala Garrison, NASA Earth Observatory. The Earth’s ozone hole in polar regions, where stratospheric ozone levels have been significantly reduced, has been featured frequently in climate change news in recent decades. Anthropogenic chlorofluorocarbons (CFCs) are the main culprit and are emitted by household products such as refrigerators, air conditioners, and…
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Nanotechnology
Physicists use selenium doping to achieve high selectivity in nanostructures
Scanning tunneling microscope image of the reaction pathway of mTBPT on a Cu(111) substrate, showing the transition from a random metal-organic structure before selenium doping to a well-ordered, crystalline, two-dimensional metal-organic nanostructure after doping. Credit: Nature Communications (2024). DOI: 10.1038/s41467-024-47614-9 Physicists at the National University of Singapore (NUS) have used flexible precursors and selenium doping to achieve controlled conformations of…
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