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Earth & Environment

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field experiment of CO2 levels

GREENHOUSE GASSED  In a long-running field experiment in Minnesota, scientists are studying the effects of rising atmospheric carbon dioxide levels on plots of grassland.

pile of plastic trash

TRASH STASH  Scientists have modified a bacterial enzyme to make it even better at breaking down PET, a plastic widely used in disposable water bottles.

swimming brine shrimp

MIXING IT UP  One swimming brine shrimp generates small-scale turbulence (time lapse of suspended particles in green). But large numbers of the animals together may create currents that stir oceans.

Earth & Environment

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