Well, but PayPal has to get money from us one way or another, and a credit card is the only way I know.
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The first public inkling that the chemicals might pose a danger emerged in May of 2000, when 3M unexpectedly announced that after 40 years of production, it was phasing out PFOS, used in Scotchgard, its well-known stain and water repellant. The company also said it would stop making PFOA, which has a similar chemical structure and is also used to make non-stick, stain-resistant coatings.
In explaining the action, 3M said it was because PFOS was starting to be found in the environment at low levels. Nonetheless, it said its products were safe and that “all existing scientific knowledge” indicated exposure at the levels being detected wasn't an environmental or human health hazard.
Mr. Wiles's group began studying perfluorochemicals after 3M's announcement.
“It just seemed to us not plausible that a company would drop its signature product or chemical, if there weren't a really big problem right in plain sight,” Mr. Wiles said.
The same day 3M made its announcement, the U.S. Environmental Protection Agency quietly notified Environment Canada and other governments around the world that the company acted because PFOS “appears to combine persistence, bioaccumulation and toxicity properties to an extraordinary degree.”