Stable ocean redox during the main phase of the Great Ordovician Biodiversification Event [0.03%]
大奥陶世生物辐射主阶段海洋氧化还原状态稳定
Álvaro Del Rey,Christian Mac Ørum Rasmussen,Mikael Calner et al.
Álvaro Del Rey et al.
The Great Ordovician Biodiversification Event (GOBE) represents the greatest increase in marine animal biodiversity ever recorded. What caused this transformation is heavily debated. One hypothesis states that rising atmospheric oxygen leve...
Manuel B Morales,Mario Díaz,David Giralt et al.
Manuel B Morales et al.
European green agricultural policies have been relaxed to allow cultivation of fallow land to produce animal feed and meet shortfalls in exports from Ukraine and Russia. However, conversion of semi-natural habitats will disproportionately i...
Anthropogenic aerosol and cryosphere changes drive Earth's strong but transient clear-sky hemispheric albedo asymmetry [0.03%]
人为气溶胶和冰冻圈的变化驱动了地球强烈的但短暂的晴空半球反照率不对称现象
Michael S Diamond,Jake J Gristey,Jennifer E Kay et al.
Michael S Diamond et al.
A striking feature of the Earth system is that the Northern and Southern Hemispheres reflect identical amounts of sunlight. This hemispheric albedo symmetry comprises two asymmetries: The Northern Hemisphere is more reflective in clear skie...
Proximity to small-scale inland and coastal fisheries is associated with improved income and food security [0.03%]
小型内陆和沿海渔业的邻近性与收入和粮食安全改善有关
Fiona A Simmance,Gianluigi Nico,Simon Funge-Smith et al.
Fiona A Simmance et al.
Poverty and food insecurity persist in sub-Saharan Africa. We conducted a secondary analysis of nationally representative data from three sub-Saharan Africa countries (Malawi, Tanzania, and Uganda) to investigate how both proximity to and e...
Remote learning slightly decreased student performance in an introductory undergraduate course on climate change [0.03%]
远程学习使学生在一门关于气候变化的本科入门课程中的表现略显不足
Sattik Ghosh,Stephanie Pulford,Arnold J Bloom
Sattik Ghosh
Public understanding about complex issues such as climate change relies heavily on online resources. Yet the role that online instruction should assume in post-secondary science education remains contentious despite its near ubiquity during...
Global trade drives transboundary transfer of the health impacts of polycyclic aromatic hydrocarbon emissions [0.03%]
全球贸易驱动多环芳香烃排放所致健康影响的跨国转移
Ruifei Li,Jin Zhang,Peter Krebs
Ruifei Li
International trade leads to a redistribution of pollutant emissions related to the production of goods and services and subsequently affects their severe health impacts. Here, we present a framework of emissions inventories, input-output m...
A century of decoupling size and structure of urban spaces in the United States [0.03%]
美国城市空间规模与结构的百年分离历程研究
Johannes H Uhl,Dylan S Connor,Stefan Leyk et al.
Johannes H Uhl et al.
Most cities in the United States of America are thought to have followed similar development trajectories to evolve into their present form. However, data on spatial development of cities are limited prior to 1970. Here we leverage a compil...
Impact glasses from Belize represent tektites from the Pleistocene Pantasma impact crater in Nicaragua [0.03%]
伯利兹的影响玻璃代表尼加拉瓜潘塔斯马撞击坑更新世的玻璃陨石
Pierre Rochette,Pierre Beck,Martin Bizzarro et al.
Pierre Rochette et al.
Tektites are terrestrial impact-generated glasses that are ejected long distance (up to 11,000 km), share unique characteristics and have a poorly understood formation process. Only four tektite strewn-fields are known, and three of them ar...
Country-based rate of emissions reductions should increase by 80% beyond nationally determined contributions to meet the 2 °C target [0.03%]
各国应在其国家自主贡献的基础上增加至少80%的减排份额以实现2℃目标的要求
Peiran R Liu,Adrian E Raftery
Peiran R Liu
The 2015 Paris Agreement aims to keep global warming by 2100 to below 2°C, with 1.5°C as a target. To that end, countries agreed to reduce their emissions by nationally determined contributions (NDCs). Using a fully statistically based pr...
Rapid conversion of isoprene photooxidation products in terrestrial plants [0.03%]
陆地植物中异戊二烯光氧化产物的快速转化
Eva Canaval,Dylan B Millet,Ina Zimmer et al.
Eva Canaval et al.
Isoprene is emitted from the biosphere into the atmosphere, and may strengthen the defense mechanisms of plants against oxidative and thermal stress. Once in the atmosphere, isoprene is rapidly oxidized, either to isoprene-hydroxy-hydropero...