sandchip
Well-Known Member
Bottles don't turn green in the sun, the only colour they turn is purple. Artificial irradiation can turn clear bottles brown as well, but never green and as far as I know that can't be done by the sun.
Bottles decolorized with manganese turn purple under UV exposure, however those decolorized with selenium can turn a light straw color, but I agree that nothing would result in a green like that.