Cyanobacteria are the only prokaryotes to have evolved oxygenic photosynthesis,
transforming the biology and chemistry of our planet. Genomic and evolutionary studies …

Methane is one of the most important greenhouse gases on Earth and holds an important
place in the global carbon cycle. Archaea are the only organisms that use methanogenesis …

The rise of atmospheric oxygen fundamentally changed the chemistry of surficial
environments and the nature of Earth's habitability. Early atmospheric oxygenation occurred …

The rate of primary productivity is a keystone variable in driving biogeochemical cycles
today and has been throughout Earth's past. 1 For example, it plays a critical role in …

Theory regarding the causation of mass extinctions is in need of systematization, which is
the focus of this contribution. Every mass extinction has both an ultimate cause, ie the trigger …

The ancestors of cyanobacteria generated Earth's first biogenic molecular oxygen, but how
they dealt with oxidative stress remains unconstrained. Here we investigate when …

When evaluating the effect of carbon dioxide (CO2) changes on Earth's climate, it is widely
assumed that instantaneous radiative forcing from a doubling of a given CO2 concentration …

Oxygenic photosynthesis is arguably the most important biological innovation in Earth's
history, facilitating the transition to a habitable planet for complex life. Dating the emergence …

The early to mid-Paleoproterozoic Lomagundi-Jatuli Excursion (LJE) is ostensibly the
largest magnitude (approximately+ 5 to+ 30‰), longest duration (ca. 130–250 million years) …

Transient appearances of oxygen have been inferred before the Great Oxygenation Event
(GOE)[∼ 2.3 billion years (Ga) ago] based on redox-sensitive elements such as Mo and S …