The Chicago River dyeing has taken place, kicking off a weekend of St. Patrick's Day celebrations in an annual tradition that ...

We tested four different green food dyes, including pandan powder, matcha, spinach powder, and spirulina powder. To determine ...

While the water in the river will retain a green color for several days, Choose Chicago notes "the brilliant green color only lasts a few hours." Still, the water retains a shade of green for a ...