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Earth & Environment

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Green catalysts illustration

NEED FOR SPEED  Platinum and other rare metals are commonly used as catalysts, but scientists pursuing greener technologies are searching for more sustainable ways to get reactions going.

sea ice around Antarctica

The extent of sea ice around Antarctica hit a new low in January, bucking an overall growing trend since recordkeeping began in 1979.

seagrass

NATURAL CLEANERS  Seagrasses, flowering plants that grow in shallow seas, can decrease bacterial contamination in the surrounding water.

Earth & Environment

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