A mysterious jump in levels of a banned industrial gas that depletes the earth’s ozone layer has been linked to Chinese production of cheap insulation foam, according to a research report.
Scientists had puzzled over what caused atmospheric levels of the chemical CFC-11 to jump up to 38 per cent since 2012, despite reported global production being in effect zero.
Researchers from the Environmental Investigation Agency, a UK-based organisation, uncovered large-scale use of CFC-11 by Chinese foam production companies even though the gas has in effect been banned since 1989.
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