Science
Earth Nearly Lost All Oxygen And Could Have Suffocated 2.3 Billion Years Ago – ScienceAlert
A new study pushes the permanent rise of oxygen in the atmosphere to 100 million years later than previously believed.
Earth’s transition to permanently hosting an oxygenated atmosphere was a halting process that took 100 million years longer than previously believed, according to a new study.
When Earth first formed 4.5 billion years ago, the atmosphere contained almost no oxygen
. But 2.43 billion years ago, something happened: Oxygen levels started rising, then falling, accompanied by massive changes in climate, including several glaciations that may have covered the entire globe in ice.
Chemical signatures…
-
General22 hours agoLanlan Yang pleads not guilty over Rolls-Royce crash in Sydney
-
Business20 hours agoBuying Coles shares? Here’s the dividend yield after the 8% price drop
-
Noosa News21 hours agoBrett Andrew Button appeal: Hunter Valley wedding bus crash driver loses fight to reduce sentence
-
General15 hours agoMore than 11,000 homes lose power as storms with spectacular lightning hit south-east Queensland