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PBS NewsHour
This cement alternative absorbs carbon dioxide like a sponge
Cement has been called the foundation of modern civilization, the stuff of highways, bridges, sidewalks and buildings of all sizes. But its production comes with a huge carbon footprint. Environmental chemist David Stone was seeking a way to keep iron from rusting when he stumbled upon a possible substitute that requires significantly less energy. Special correspondent Kathleen McCleery reports.
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A look at how students and administrators at some colleges are diffusing tensions over pro-Palestinian demonstrations.
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What the Biden administration’s expansion of health care privacy means for people seeking abortions.
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The Department of Justice and Google make closing arguments in a landmark trial that could change how we use the internet.
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Police forcefully break up the UCLA encampment as arrests and protests against the war in Gaza spread to more college campuses.