Science & Research

Fountain: Geophysical Research Journal: Biogeosciences This is an authorized translation of an Eos article. 本文是Eos文章的授权翻译. 氮是全球环境的重要组成部分,影响着农业、气候、人类健康和生态系统。氮循环的作用已经得到了更广泛的认识,然而用于预测全球环境变化的地球系统模型(ESM) 仍然没有将其完全纳入考量. Kou-Giesbrecht主张在ESM中交互式地纳入完整的氮循环，以解释氮在陆地、海洋和大气之间复杂且相互关联的流动方式。氮直到最近才被纳入一些ESM的陆地模型中,并且仅仅作为初级生产力的限制因素. 氮的作用远不止于植物生长,它还是一种强效温室气体,也是臭氧形成和气溶胶成分的重要驱动因素。野火会释放氮氧化物和氨，导致颗粒物浓度升高；海洋微生物既吸收氮也释放氮。氮向海洋的输出会影响海洋初级生产力，也影响海洋氮的排放，而海水中过量的氮会导致富营养化。 尽管氮循环在全球范围内都非常重要,但ESM中的许多氮循环组成部分即使被包括在内，也不是完全交互的，有些甚至根本没有被纳入模型；相反,动态模拟氮循环,将大大缩小我们对地球气候和环境近期演变的认知差距. “”科伦坡可持续氮管理宣言》的目标，即到2030年将氮废弃物减少一半，这样每年可以(Geophysical Research Journal: Biogeosciences, https://doi.org/10.1029/2025JG0092092025) —科学撰稿人Nathaniel Scharping (@nathanielscharp) This translation was done by wiley. 本文翻译由wiley提供。 Read this article on WeChat. 在微信上阅读本文. Text © 2025. AGU. CC BY-NC-ND 3.0Unless otherwise noted, images are subject to copyright….

Credit: Unsplash. Today, humanity’s collective headache has become one of its most constant companions. Nearly 3 billion people (about one in three humans) live with some type of headache disorder, according to The Lancet Neurology’s new analysis of the Global Burden of Disease Study 2023. But women bear the brunt of this burden. Researchers found…

Essay by Eric Worrall If climate money doesn’t arrive on time, demand more money? Brazil climate summit faces gap between financial goals and reality Soumya SarkarNovember 18, 2025 The aspirational climate finance target of $1.3 trillion annually by 2035 falls short of needs: developing countries will need $2.4 trillion by 2030, rising to $3.2 trillion…

Congress entered the August recess having accomplished a fraction of what was needed to complete the fiscal year 2026 (FY26) appropriations process before the fiscal year ends on September 30, 2025. The House Appropriations Committee approved 9 of its 12 bills and the full House approved 2 of its 12 appropriations bills. The Senate Appropriations…

A bold new laser-based technique allows researchers to trap and charge a single aerosol particle, opening a window into how tiny ice crystals in clouds can store and release electrical energy. As the team discovered, laser photons can remove electrons from these particles one by one, allowing scientists to observe how they charge, discharge, and…

Researchers at Tokyo Metropolitan University have turned to concepts from polymer physics to better understand a central feature of Alzheimer’s disease: the formation of tau protein fibrils. Their work revealed that these fibrils do not appear suddenly. Instead, they emerge after large clumps of tau proteins begin to assemble in solution, a process that resembles…

IBM scientists have created two new quantum processing units (QPU) which they say will bring them one step closer to achieving a quantum advantage by next year, and a fully fault-tolerant system. quantum computer by 2029. The first processor, called IBM Quantum Nighthawk, is a 120-qubit chip that can process quantum calculations that are 30%…

The Blue Mountains, New South Wales, Australia. Credit: Donovan Kelly/Pexels a new study in Nature Human Behavior led by Amy Caminoa research archaeologist from the University of Sydney, establishes that sites above 700 meters in Australia were inhabited during the Last Glacial Maximum (LGM), a period between 26,000 and 19,000 years ago. Way and his…

Macrovipera lebetina obtusa ((M. l. obtusa) It is the most medically important viper species in Armenia and the region, responsible for the majority of snakebite cases. This study investigated the hematological, coagulation and histopathological effects of Ml obtuse poisoning in rats and mice, and evaluated the therapeutic efficacy of an experimental antidote of ovine origin….

What were the alabaster vessels of Egypt really used for? Its stones and inscriptions were easy to study, but their content remained hidden. A unique ship now offers the first look inside. A new study reveals that an alabaster vase inscribed with Xerxes once contained opium. The research, published in the Journal of Eastern Mediterranean…