Starting at 11 a.m. on Saturday, a green dye will be poured into a portion of the river to temporarily turn the water green. This part of the celebration has draw pushback from several thousands of ...

Environmentalists worry that coloring the river green will negatively impact our local ecosystem. A petition circulating online with more than 7,200 signatures seeks to end this tradition.

Every year as part of the city's St. Patrick's Day celebrations, thousands of onlookers clad in green cheer on a boat crew ...

Since 1962, the Chicago Journeymen Plumbers Local Union 130 has been pouring 40 pounds of dye into a quarter-mile stretch of ...

St. Patrick's Day weekend celebrations are officially here, with an iconic Chicago tradition kicking off festivities Saturday morning as the Chicago River was dyed green.

The Chicago River is once again glowing kelly green as the city opens its annual St. Patrick’s Day celebrations.

"You see the dye is orange, and its initial color ... up the Gulf Stream and across the Atlantic you can see the beautiful green enter the Irish Sea, clearly marking the way from Chicago to ...

Dozens of companies and academic groups are pitching the same theory: that sinking rocks, nutrients, crop waste or seaweed in ...