And the specific green color, the union says is "identical to the greens of Ireland from where it got its name, The Emerald Isle." The Chicago River was dyed green for St. Patrick's Day Saturday ...

In Tampa, the Hillsborough River transformed into a ribbon of emerald magic on Saturday, weaving Irish charm through downtown as thousands gather for the annual River O' Green celebration. The ...

A 61-year-old tradition: How and why Chicago dyes the Chicago River emerald green The 61-year-old tradition is happening again this weekend a few hours before the start of the downtown Chicago St ...

Get ready for Tampa’s River O’ Green Festival on March 15! Enjoy live music, Irish dance, games, food, and a stunning emerald-green Hillsborough River at Curtis Hixon Park. Fun for all ages ...

SAO PAULO (AP) — A major river in the Brazilian metropolis of Sao Paulo is suddenly emerald green and clear skies this week turned from blue to grey. In the late afternoon, the sun’s rays ...

In a rare occurrence, Emerald Bay in Lake Tahoe has completely frozen over. The last time this happened was in the 1990s, according to California State Parks. Courtesy of California State Parks ...