One in 10 Brazilian mines may be abandoned, study finds
Brazil has 3,943 mining sites showing signs of abandonment, or 11% of the country's authorized operations, according to a new study.
Researchers at Curtin University have identified an electrocatalyst that, with added nickel and cobalt, makes green hydrogen from water in a cheaper and more efficient way compared to traditional methods. Green hydrogen is a zero-carbon fuel made by electrolysis using...
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