Is dyeing rivers for St. Patrick’s Day an un-green move?

Grist
By Ask Umbra®Mar 17, 2016, 6:00 am109 pts
Q. Dear Umbra, This is literally a green question. St. Patty’s Day is here and everything is getting dyed green, even the Hillsborough River in Tampa. Chicago does this too. Is it really safe for the environment and wildlife for these rivers to be dyed green? “They” say the dyes are water-soluble and…

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