该模拟研究首次为早期复杂生命的“爆发式”出现提供了动态环境背景框架。模型显示的三次氧气脉冲高峰期,在时间上与全球最早一批复杂多细胞生物群(如我国的“蓝田生物群”“瓮安生物群”等)的繁盛期高度吻合。这表明,是地球系统自身的周期性振荡,而非缓慢的线性增氧 ...
近日,河海大学商学院盛济川教授领衔的研究团队在《Nature Geoscience》发表题为“Global water security threatened by rising ...
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Around 12,000 years ago, the last Ice Age ended, global temperatures rose and the early Holocene began, during which time human societies became increasingly settled. A new study published in Nature ...
Physical geography and environmental geoscience form a critically interlinked field that investigates the natural processes shaping Earth’s surface and the way in which these processes interact with ...
Earth's oxygen-rich atmosphere faces a finite lifespan of about 1.08 billion years before a sharp decline, according to a ...