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Geochemists measure new composition of Earth's mantle

What is the chemical composition of the Earth's interior? Because it is impossible to drill more than about ten kilometres deep into the Earth, volcanic rocks formed by melting Earth's deep interior often provide such information. ...

Tomorrow's coolants of choice

Later during this century, around 2060, a paradigm shift in global energy consumption is expected: we will spend more energy for cooling than for heating. Meanwhile, the increasing penetration of cooling applications into ...

Climate change turns Arctic into strategic, economic hotspot

From a helicopter, Greenland's brilliant white ice and dark mountains make the desolation seem to go on forever. And the few people who live here—its whole population wouldn't fill a football stadium—are poor, with a ...

Electronic waste is mined for rare earth elements

Rare earth elements are the "secret sauce" of numerous advanced materials for energy, transportation, defense and communications applications. Their largest use for clean energy is in permanent magnets, which retain magnetic ...

On the way to printable organic light emitting diodes

Organic light-emitting diodes are components that no longer consist of compounds containing the semiconducting material gallium, but of so-called organic compounds in which carbon is a main component. Compared to conventional ...

US-China trade war sparks worries about rare minerals

Rising trade tensions between the U.S. and China have sparked worries about the 17 exotic-sounding rare earth minerals needed for high-tech products like robotics, drones and electric cars.

US says to take action to ensure rare earths supply

The United States says it will take "unprecedented actions" to ensure the supply of strategic elements and rare earths, as China mulls possible export controls for materials that are critical to modern technology.

China steps up threat to deprive US of rare earths

Chinese state media dangled Wednesday the threat of cutting exports of rare earths to the United States as a counter-strike in the trade war, potentially depriving Washington of a key resource used to make everything from ...

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