'Extinction Rebellion' activists pour dye into Venice’s Grand Canal, turning the water bright GREEN and dying the buildings, monuments, and places of historical value green. "They're ruined, said Tomas Valano, we can't get it to come off". Greta Thunberg is banned from Venice — The Telegraph She's not allowed to enter the city and has to pay a fine for pouring dye 🟢into Venice’s Grand Canal.