Santa Monica, California UNITED STATES(FILES)

Customers inspect the iPhone at the Apple store in this 29 June 2007 file photo in Santa Monica, California. Environmentalist lawyers are threatening to sue Apple in 60 days if the iconic US company doesn't make iPhones greener or warn buyers of toxins in the devices.The Center for Environmental Health in Oakland, California, sent Apple, after environmental activist group Green Peace released a scientific analysis of how Earth- friendly iPhones are.