"A new study, published today in PLOS ONE, reports the unexpected discovery of the universal production of greenhouse gases methane and ethylene by the most common plastics when exposed to sunlight. The science team tested polycarbonate, acrylic, polypropylene, polyethylene terephthalate, polystyrene, high-density polyethylene and low-density polyethylene (LDPE) -- materials used to make food storage, textiles, construction materials, and various plastic goods. Polyethylene, used in shopping bags, is the most produced and discarded synthetic polymer globally and was found to be the most prolific emitter of both gases."
Sarah-Jeanne Royer, Sara Ferrón, Samuel T. Wilson, David M. Karl. Production of methane and ethylene from plastic in the environment. PLOS ONE, 2018; 13 (8): e0200574 DOI: 10.1371/journal.pone.0200574
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