Great Oxidation Event
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Earth's Ocean Loses 2% of Its Oxygen Since the 1960s, Over 500 'Dead Zones' Reported Worldwide: UNESCO
The UN has attributed the loss of oxygen in Earth’s oceans to human activities. Click to read more.
![Great Oxidation Event 2.5 Billion Years Ago Lasted for Over 200 Million Years, Longer Than Previously Thought [Study]](https://d.natureworldnews.com/en/full/70831/great-oxidation-event-25-billion-years-ago-lasted-over-200-million-years-longer-previously.webp?w=242&h=135&f=d9b52d63261f98578fdd96d146538429)
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