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A comment on Graphene: The perfect water filter. Parent comment

Re:Graphene: The perfect water filter by rmk on Friday January 27, 2012 @04:50PM (#3520330)
I guess we'll have to worry less about global warming as well (or at least the concerns about increase in sea level) :)
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Re:Graphene: The perfect water filter by Sapient on Friday January 27, 2012 @05:00PM (#3520366)
Reverse osmosis filters can already remove salt from water, and far more efficiently as well I believe.
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