Si Michael Hart, a taga San Diego, so inakusaan na panagsalungasing ed saray totontonen na gobierno na E.U. a getma ton dederalen so pangusar na saray gas a manresulta ed greenhouse. Ilegal so pangimpor na saray hydrofluorocarbon (HFC) ya anggapo so espisyal a permit ya impaway na Environmental Protection Agency (EPA). Si Hart so inakusaan na impanaliw na saray refrigerant ed Mexico tan impangipaalis ed saratan diad E.U. diad impamundo ed saratan diad silong na tarpaulin tan saray kagawaan.