Microplastics 'pollution puzzle' in PNAS News feature

In May, PNAS published an article that describes how research developed from finding unexpectedly high numbers of plastic particles in the marine environment to developing methods for identification and to effect assessment ...

Earthworms soak up heavy metal

Earthworms could be used to extract toxic heavy metals, including cadmium and lead, from solid waste from domestic refuse collection and waste from vegetable and flower markets, according to researchers writing in the International ...

Teamwork against benzene

The carcinogenic harmful substance benzene can seriously impact the soil and ground water following chemical accidents or at old industrial sites. Nevertheless, bacteria exist which can degrade this compound even in the absence ...

Polluting China for the sake of economic growth

China's economic growth will continue to be energy-intensive and highly polluting for the foreseeable future with emissions and efficiency far below capital growth on the agenda, according to a study published in the International ...

Scientists Cryopreserve Pest-Imperiled Ash Trees

(PhysOrg.com) -- Using cryopreservation methods, Agricultural Research Service (ARS) scientists have devised a procedure for storing frozen budwood from ash trees (Fraxinus) and thawing the delicate buds for later use in ...

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