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Thailand to ban chemical harmful to ozone layer from use in spray foam
FRIDAY, SEPTEMBER 16, 2022
Thailand plans to ban the use of dichlorofluoroethane (HCFC-141b) in spray foam production by 2024 in an effort to save the ozone layer and mitigate the severe effects of global warming.
Ozone ‘depletion’ a DuPont manipulation 
SATURDAY, FEBRUARY 24, 2018
Re: “Is the Ozone layer thinning?”, The Nation, February 23