Southern US swelters in brutal heat wave

A dangerous and prolonged heat wave blanketed large parts of the southern United States on Tuesday, buckling highways and forcing people to shelter indoors in what scientists called a climate-change supercharged event.

Energy sector CO2 emissions hit record in 2022: study

Global energy sector carbon dioxide emissions hit a record peak last year counter to Paris commitments, a key study warned Monday, and highlighted the "worst ever" impacts of climate change.

High-power, high-energy, all-fiber Mamyshev oscillator

High power/energy ultrafast fiber lasers have broadband applications in material processing, medicine, advanced manufacturing and other fields. Compared with solid-state lasers, fiber lasers have the advantages of compact ...

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