petrochemicals giant Dow Inc and the Singapore government said they were transforming old sneakers into playgrounds and running tracks. The donated shoes that ended up in Indonesia have added to a flood of illegal second-hand clothing pouring into that developing country, according to a senior government official there, who said such cast-offs pose a public health risk, undercut its local textile industry and often pile more waste into its already bulging landfills. “Dow promised to pick up these shoes and grind them into materials and make them into playgrounds, and instead they’re being found all over another country