Ultrasound can save fish in hydropower rivers

The phenomenon of gas supersaturation occurs when air enters water-filled hydropower inlets and is then exposed to high pressure. When this water is subsequently released into the river below the hydropower plant, it's almost ...

Obtaining hydrogen from vine shoots for biofuel production

A research team from the universities of Jaén and São Paulo in Brazil has confirmed that hydrogen can be obtained from vine shoots through a process that does not require fossil fuels and does not emit pollutants. With ...

Polyethylene waste could be a thing of the past

An international team of experts undertaking fundamental research has developed a way of using polyethylene waste (PE) as a feedstock and converted it into valuable chemicals, via light-driven photocatalysis.

'Unabated': a word to split the world at COP28

The outcome of the most important climate negotiations in years could rest on the ambiguity surrounding one linchpin term, according to experts: "unabated fossil fuels".

A new map points at the impacts of rare earth elements

A map created by the Debt Observatory in Globalization in collaboration with the EJAtlas of Institute of Environmental Science and Technology of the Universitat Autònoma de Barcelona (ICTA-UAB), the Institute for Policy ...

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