Residents point out "veil of bright green liquid" on the water. Police investigating whether climate activists are behind the discoloration.
In 1968, artist Garcia Uriburu poured bright green dye into the water to raise awareness of environmental protection. Last weekend, an environmental group stained the water of Rome's Trevi Fountain black with biochar to protest the climate policies of Prime Minister Giorgia Meloni's Italian government. The heavy rains caused by the floods had followed a period of severe drought.