The global conglomerate sells cigarettes and other tobacco products outside of the U.S.
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News about Philip Morris International
U.S.-based firms made up a fifth of those in a 2017 "A list."
Health experts are skeptical.
There are business motivations at play.
Big Tobacco stocks are plunging as a result
Tobacco waste contains over 7,000 toxic chemicals that poison the environment, the WHO says.