Energy & Green Tech

Giant vertical farm opens in Denmark

A purple glow illuminates stacked boxes where lettuce, herbs and kale will soon be sprouting at one of Europe's biggest "vertical farms" which has just opened in a warehouse in an industrial zone in Copenhagen.

Security

Researchers invent low-cost alternative to Bitcoin

The cryptocurrency Bitcoin is limited by its astronomical electricity consumption and outsized carbon footprint. A nearly zero-energy alternative sounds too good to be true, but as School of Computer and Communication Sciences ...

Energy & Green Tech

Study puts charge into drive for sustainable lithium production

An important new study by researchers at the U.S. Department of Energy's (DOE) Argonne National Laboratory has yielded critical fresh insights into the lithium production process and how it relates to long-term environmental ...

Energy & Green Tech

Spotlight glare on Bitcoin as numbers show mining's energy use

(Tech Xplore)—We heard in early studies that Bitcoin used much energy. Digiconomist can take us down memory lane when an investigation into the energy consumption of the Bitcoin network was conducted by Karl J. O'Dwyer ...

Energy & Green Tech

Wind output in Denmark last year was a record-setter

An impressive share of a country's energy consumption through wind? That is one more sign of wind energy's potential as countries look for cleaner energy alternatives. The spotlight goes on Denmark.

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