Tracing Marine Oxygen Loss Through Fossilized Shark Teeth
A study explores how uranium isotopes in fossilized shark teeth could provide insights into historical ocean anoxia, with mixed results.
New Scientist2d
We may have discovered how dark oxygen is being made in the deep sea
A newly discovered mechanism could explain the shock finding last year that oxygen is produced by metallic nodules on the ...
Record Sea Levels in 2024 Reveal a Shocking Surge in Ocean Expansion
Sea levels surged in 2024, rising faster than expected due to warming oceans. Unlike previous years, where melting ice ...
Earth.com5d
Earth's oxygen supply may have been kick-started by volcanoes
Scientists found that volcanic eruptions triggered short-lived oxygen spikes before Earth's air became breathable.
Deep-sea fish study reveals evolutionary marvels in Earth's hadal zone
The deep sea, covering approximately 65% of Earth's surface, has long been considered a biological desert. In this extreme ...
Science Daily6d
Are volcanoes behind the oxygen we breathe?
It is widely believed that Earth's atmosphere has been rich in oxygen for about 2.5 billion years due to a relatively rapid increase in microorganisms capable of performing photosynthesis. Researchers ...
Volcanic activity billions of years ago set the stage for Earth's oxygen-rich atmosphere, research suggests
It is widely believed that Earth's atmosphere has been rich in oxygen for about 2.5 billion years due to a relatively rapid ...