Related topics: iron

Surveying Earth's interior with atomic clocks

Ultraprecise portable atomic clocks are on the verge of a breakthrough. An international team lead by scientists from the University of Zurich shows that it may be possible to use the latest generation of atomic clocks to ...

How will humans adapt to climate change? Ask a Viking

Popular culture portrays Vikings as violent marauders who raided the coasts of Europe with impunity, but new research indicates the Vikings were vulnerable to at least one threat: a changing climate.

Eyjafjallajokull's iron-rich ash fertilized North Atlantic Ocean

In about a third of the global ocean, the abundance of life is limited by a dearth of biologically available iron. The supply of iron to a region that is depleted in this important nutrient can stimulate algal productivity, ...

The rise and fall of oxygen

How long has Earth's atmosphere included oxygen? A recent paper suggests low levels of oxygen appeared in the atmosphere approximately 2.95 billion years ago. That's about 550 million years earlier than previously thought.

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